27C256-12FA

27C256 PHILIPS | Alldatasheet

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Philips Components-Signetics 27C256 owne.__| 256K-bit CMOS EPROM (32K x 8) ost otese [nove 100 | Sie [Prose peceton DESCRIPTION FEATURES PIN CONFIGURATION Philips Components-Signetics 27C256—_@ Low power consumption CMOS EPROM is a 262,144-bit 5V read — 100A maximum CMOS standby D, FA, and N Packages: only memory organized as 32,768 words current of 8 bits each. It employs advanced . vee (i 33] Voc CMOS circuitry for systems requiring © High-performance speed an bay low power, high-performance speeds, — 90ns maximum access time au and immunity to noise. The 27C256 has @ Noise immunity features ao pe) ars a non-multiplexed addressing interface = 410% Vec tolerance ate p25) as and is configured in the JEDEG - Maximum latch-u immunity through ao fa) 09 standard EPROM pinout. Ephatal ‘processing ve a a 0 fo™N Quick-pulse programming is employed te . ; “ef \\ B= on plastic devices which may speed up ° Quiok-pulse programming algorithm 2] \\__/ lao Programming by as much as one a fy [20] CE hundred times. In the absence of PIN DESCRIPTION a0 {70 [ia] o7 quick-puse programming equipment, [“A0-ata | Addiesses | o oe the intelligent programming algorithm [ Outputs | may be utilized, aa o7 | oar Ease a= a The 27C256 is available in windowed = Ceramic DIP, Plastic DIP, PLCC, and = |_CE___—'| ChipEnable | ow oe Small Outline (SO) packages. This | GND | Ground device can be programmed with 2, 2 SO Sandard EPROM programmers. a [ou | dontuse APackage BLOCK DIAGRAM AT A12 Vpp DU Voc A14 A13. DATA OUTPUTS: [4] [3] [2] (1) 62) By) fo} ara By Fa] as as] 2s] As ui] 27) Att cE CHIP ENABLE af a oe At io} pa] Ato = [=] |/5 a a= Ey or 00 [13] 27] Os Ly bs be tet bel bl Bo aboness XDECODE 01 02 GND DU 63 04 O5 INPUTS: ‘A= Plastic Leaded Chip Carrier Philips Components = PHILIPS

Philips Components-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 270256 READ MODE: ‘utput control and should be used to gate STANDBY MODE ‘The 27C256 has two control functions, both data from the output pins. Data is available at_ The 270256 has a standby mode which of which must be logically active in order to the outputs after a delay of tog from the reduces the maximum Voc current to 100A. obtain data at the outputs. Chip Enable (CE) _falling edge of DE, assuming that TE has Itis placed in the Standby mode when CE is is the power control and should be used for been low and addresses have been stable for _ in the High state. When in the Standby mode, device selection. Output Enable (OE) is the at least tacc - log. the outputs are in a high-impedance state, independent of the OE input.

ORDERING INFORMATION

COMMERCIAL ‘AUTOMOTIVE 37G286-12FA 270256112 FA 27C256A12 FA " . . “ a 256-1 i) 28 in Coramic Dual In-Line with quartz window 27C256-15 FA 276256115 FA 27C256A15 FA 27C256-17 FA 27C256120 FA 27C256A20 FA 270256-20 FA icoern C256112 N -7C256A12 N in Plast F 27C256-12 N 27025611 2 12

26 Pin Prastic Dual In-Line 27C256-15 N 270256115 N 270256A15 N

27C256-17 N 270256120 N 27C256A20 N 27C256-20 N 270256-90 D 2D in Plast i 270256-12D 270256112 270256A12 D erin Piastic Small Outine (SO) 276256-15 D 270256115 D 27C256A15 D 270256-17 D 270256120 D 27025620 D 27C256-20 D 270256-90 A DA 266A Binet oar 27C256-12A 27C256I1 27C256A12 A 32-Pin Plastic Loaded Chip Carior 27C256-15 A 270256115 A 27C256A15 A 270256-17 A 270256120 A 27C256A20 A 270256-20A ABSOLUTE MAXIMUM RATINGS! a Storage tomporature range Volga inputs and out Vetage on AS? Ouring netigen ener intropaton | Vokage on Vos? (Dung programing) Supply voltage? \\ NOTES: : 1. Stresses above those listed under “Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2. All voltages are with respect to network ground. DEVICE OPERATION OPERATING TEMPERATURE RANGE [wove [Ce [OF | vt [ourrurs][ _ranaweren «(| _—RATING-O) [oupabieatio | va | Ym | vee | m2 _| = = Operating temperature range: Tab INDUSTRIAL 40 10 485 NOTES: ‘AUTOMOTIVE 1. All voltages are with respect to network ground. 40 to +125 2. Vpp may be one diode voltage drop below Voc, and can be connectad directly to Voc 3. Xcan be Vy or Vi. November 12, 1990 2

Philips Components-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 270256 DC ELECTRICAL CHARACTERISTICS Over operating temperature range, +4.5V < Voc < +5.5V [i | toate Fgh Vase 55V= Vos ee ce OT a [ko | tentage «dC EV Vor Vog | 0] [v0 | mw | a . CE = OE = Vy. f = 11.1MHz . TE = GND, f= 11.1MHz Sandy Tuna [SEV [ve [emery «dC eg Sid Cd [ve | towcowosy_——~+t See Vo df | High (TY [Vor Ven 80 | [voor 08 |v] Hi (CMOS) [Vor Ven | ves-02 | | 08 | v_] es (Operating [co-07 | [Wee02 |v] [va ftew deta SSdCidd os LS a Oe Capacitance? Tarp = 25°C Atos and col a a a Ss Ar 2 a Yun 1 Veur=oW a ce t NOTES: 2. All voltages are with respect to network ground, 3. Typical limits are at Voc = 5V, Tare = 28°C, 4. TTL inputs: Spec Vi, Vy levels. CMOS inputs: GND + 0.2V to Voc + 0.2V. 5. TE is Voc + 0.2V. All other inputs can have any value within spec. 6. Maximum active power usage is the sum of Ip + loc and is measured at a frequency of 11.1MHz. 7. Test one output at a time, duration should not exceed 1 second. 8. Vpp may be one diode voltage drop below Voc, and can be connected directly to Voc. 9. Guaranteed by design, not 100% tested. November 12, 1990. 3

| 3. OE may be delayed up to tcc - toe after the falling edge of TE without impact on toe. Figure 1. Test Configuration

Philips Componente-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 270256 PROGRAMMING INFORMATION ERASURE CHARACTERISTICS The identifier information for Signetics Complete programming system specifications The erasure characteristics of the 27C256 270256 is as follows: for both the intelligent programming method _are such that erasure begins to occur upon When Ag = Vis and for the quick-pulse programming method —_ exposure to light with wavelengths shorter data is *Manufacturer* 1520 are available upon request from Signetics than approximately 4000 Angstroms (A). It When Ag = Vix ee pos ol husescntlampe have waveonghs “aia “Produat Coen Signetics encourages the purchase of inthe 90004000 Arange, Data shows that Programming reliably is also ensured asthe Who hasa ful ine of programming products constant exposure to room level fluorescent incremental program margin of each byte is to offer. Signetics also es the lighting could erase the typical 270256 in continually monitored to determine when it j ogee approximately three years, while it would take has been successfully programmed. The manufacturers of EPROM programming ximately ne wok tp programming algorithm utilizes two different equipment to submit their equipment for approximately one week to cause erasure nee verification of 5 ‘and when exposed to direct sunlight. If the pulse types: initial and overprogram. The 1 of electrical parameters : 270256 is to be exposed to these types of duration of the initial PGM pulse(s) is 1ms, Programming procedures. Information on lighting conditions for extended periods of _-—-—_which is then followed by a longer manufacturers offering equipment certified by Iso of 3Xms. X is an iteration Signetics is available upon request from time, opaque labels shouldbe placed over —_-overprogram pul vanek jones the window to prevent unintentional erasure. counter and is equal to the number of the Signetics. initial 1ms pulses applied to a particular ultra- < PROGRAMMING THE 270256 violt ight which has a wavelongth of 2537 Betore tro everpograrn putea le apoliod Cautlon: Exceeding 14.0V on Vpp Pin may Angstroms (A). The integrated dose (ie., UV as ” permanently damage the 276256. intensity x exposure time) for erasure should When the intelligent programming cycle has m . be minimum of 15Wsec/cm?, The erasure been completed, all bytes should be compared Initially, all bits of the 276256 are in the “1” time with this dosage is approximately 1510 to the original data source with Voc = 5.0V stato. Data is introduced by selectively 20 minutes using an ultraviolet !amp with a —_—_(Fefer to the following pages for algorithm speci- programming "0's into the desired bit Nom? . fications). locations. Although only “0"s will be 12,000,Wiem? power rating. The 276256 z 0 should be placed within one inch of the lamp Programmed, both “1"s and “O's can be tubes during erasure. The maximum present in the data word. integrated dose a 27C256 can be exposedto +CMOS NOISE The data to be programmed is applied 8 bits without damage is 7258Wsecicm? (1 week@ CHARACTERISTICS in parallel to the data output pins. The levels 12000. Wicm?). Exposure of these CMOS ‘Special epitaxial processing techniques have required for the address and data inputs are EPROM to high intensity UV light for longer enabled Signaties to build CMOS with standard TTL logic levels. Periods may cause permanent damage. features that add to system reliability. These include input/output protection to latch-up for stresses up to 100mA on Address and Data QUICK-PULSE PROGRAMMING _ INTELLIGENT PROGRAMMING pins that range from -1V to (Voc + 1V). In ALGORITHM ALGORITHM addition, the Vep (Programming) pin is, Signotics plastic EPROMs can be ‘The 27C256 intelligent programming Gesigned tn resist latch-up to the 14V programmed using the quick-pulse algorithms rapidly program CMOS EPROMs — maximum device limit. ! programming algorithm to substantially using an efficient and reliable method | reduce the through-put time in the production _ particularly suited to the production : environment. This algorithm typically allows Programming environment. Actual SIGNETICS DISCOURAGES THE plastic devices to be programmed in under Programming times may vary due to CONSTRUCTION AND USE OF four seconds, a significant improvement over _ differences in programming equipment. “HOMEMADE” PROGRAMMING re aigori me orrennina ‘The intelligent identifier also provides the EQUIPMENT programming equipment being used. reading out of a binary code from an EPROM —_ In order to consistently achieve excellent that will identity its manufacturer and type. programming yields, periodic calibration of ‘The quick-pulse programming algorithm uses _ This is intended for use by programming the programming equipment is required. initial pulses of 100us followed by a byte equipment for the purpose of automatically Consult the equipment manufacturer for the verification to determine when the address «Matching the device to be programmed with recommended calibration interval. Signetics byte has been successfully programmed. Up __its corresponding programming algorithm. warranty for programmability extends only to 10 28 100ys pulses per byte are provided This mode is functional in the 25° + 5°C product that has been programmed on before a failure is recognized (refer to the ambient temperature range that is required certified equipment that has been serviced to | following pages for algorithm specifications), when programming the 27C256. To activate —_the manufacturers recommendation. this mode, the programming equipment must force 11.5V to 12.5V on address A9 of the 270256. Two bytes may then be read from the device outputs by toggling address line AO from Vj. to Vy. The CE, OE and all other address lines must be at V_. during interrogation. November 12, 1990 5

Philips Components—Signetics Memory Products Product Specification ere Proc Spacificattionn 256K-bit CMOS EPROM (32K x 8) 27C256 eee INTELLIGENT PROGRAMMING ALGORITHM DC PROGRAMMING CHARACTERISTICS Tamb = 25°C 45°C, Voc = 6.0V 40.25V, Vpp = 12.5V +0.5V ied i esa -ae [MIN] wax” | [i | tnputcurentiatinputsy [Wwe Vuorvn | | tT [ve | eputlowiovltatinpusy —tSSSCSC~C~S nf cw dt [vin | inputhighieve Cd ee es OT [vou | Outputow votageauingveniy | caiman =< —S—~*d ons | Vou | Ourputhigh votage during verity | tus2ema | TCT S| [coe [Veo suppiycurent Tn ts=omA || 8m Lives [Ver supply currentiprogramy J E=M| TSm_ AC PROGRAMMING CHARACTERISTICS TEST CONDITIONS Gm tea ee eee [us| Address soupime PCT | CCUTCdT C [oes [OEswptime CU TdT si [tos | Datasoupime Cd a TCT | [1 _[adiresshodime CT TCTs a SR Sa [ws | Vonsomptime CU |CTCUdTCUTC ' a OO a BO [ew | CE program pusewian [Now| os | 0 | 4.05 | me | [tor | CE overpogram pusowian | Nowe ——~«dt aes |_| 7075 | me] [tcc [Datavaidtomoe CC Sid ts Ts H AC CONDITIONS OF TEST i Input Rise and Fall Times (10% t0 90%) «2. o.oo eee eee eee ee cee eete cece eeeseeeeeeeeeetee esses eeeeeeeesee es 2018 : Input Pulse Levels 2... eee eee cece cece eee ee eet eetn sti eeetetttttetetttitirerersersrss, O,48V to 2.4V NOTES: 1. Initial program pulse width tolerance is 1ms +5%. 2. The length of the overprogram pulse may vary from 2.85msec to 78.75msec as a function of iteration counter value X. 3. The parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven - see timing 4. Boag Programming, a 0. yf capacitor is required from Vpp to GND node, to suppress voltage transients that can damage the device. November 12, 1990 6

Philips Components-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 270256 INTELLIGENT PROGRAMMING ALGORITHM WAVEFORMS PROGRAM PROGRAM READ VERIFY tace vin 15v vw NE Co ow vin ve Me ow OES via ve Me November 12, 1990 7

Philips Components-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 27C256 INTELLIGENT PROGRAMMING ALGORITHM FLOWCHART CD E ‘WORD ‘WORD > < ™ OF 3X meec DURATION yes Cx ‘ALL BYTES ot TO ORIGINAL DATA, PASS November 12, 1990 8

Philips Components-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 270256 QUICK PULSE PROGRAMMING ALGORITHM DC PROGRAMMING CHARACTERISTICS Tams = 25°C 45°C, Voc = 6.25V £0.25V, Vpp = 12.75V 40.25V pee] oe eer ee | [MIN J Max | [i tnputcurrent(ainputs) [Wwe Vue | TOL [ve [toutow eve ating) a oe A OY iar] ovation tage ang iy [gv aes [vou | ovputigh vgs aring vrly | tguaeena as a Lice | Vor supply currentiprogram) | EM | SCT «S| Cm AC PROGRAMMING CHARACTERISTICS ‘SYMBOL TEST CONDITIONS [ums peep oe eee eee] | [us| Addressseuptime Pd es [oss [OE sewptme Pe Ts [es___[Dawsoupime Ce TCs [ms [Adiresshoidime CT Ts [ton | Datahoidtme a Cs [ore* [Oe highiocutputfostdoly PT tm ns [wes | Vepsowpime CU a Os [wes | Voosemptime Pe Ts | ew | Tenia program pusewiah [Noto | 005 | 0.100 | 0.105 | ms | [orw __| TE overprogram puisowith Nowe? | es || 78 | me | Loc [datavaidtomoe TC CC ti AC CONDITIONS OF TEST i Input Rise and Fall Times (10% 10 90%) «2.2... e eee ecccecececceceeeeeeeseeeeeeaeeeeeeeeeeeeeetttttieeeeeesesseces 2OA8 i Input Pulse LOVEIS o.oo eect rere treeeeeeeseetesesietrtettitttienitetitrrtiiiittreireeerses O45V to 2.4¥ ' Notes: 1. Initial program pulse width tolerance is ms +5%. 2. The length of the overprogram pulse may vary from 2.85msec to 78.75msec as a function of iteration counter value X. 3. The parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven — see timing | 4. Dong programming, 8 0.1,f capacitor is required from Vpp to GND node, to suppress voltage transients that can damage the device. November 12, 1990 r)

Philips Components—Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 270256 QUICK PULSE PROGRAMMING ALGORITHM WAVEFORMS PROGRAM. oe READ VERIFY sooness a Co ad iL tace: Min 12.78 MH wi \\_] to. Min ve Mi we ‘ES: vw ve cu November 12, 1990 10

Philips Components-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 27C256 eee PROMOS QUICK PULSE PROGRAMMING ALGORITHM FLOWCHART E : ‘ONE WORD ‘WORD ‘ALL WORDS TO =

1 ORIGINAL

DATA, PASS i | November 12, 1990 "1

Philips Components-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 27C256 28-PIN (300 mils wide) PLASTIC SOL (SMALL OUTLINE LARGE) DUAL IN-LINE (D) PACKAGE NOTES: {ST o@T -10_(004)] 1. Package dimensions contorm to JEDEC specification MS-013-AD for standard small outine (SO) package, ‘Sima 7.0mm S07) body wid Gaave A June HHHHHHHAHHHAHAH » ee negyieaw ine ‘4, “T*,"D" and “E* are reference datums on the molded body and do not include mokd flash of protrusions. 1065 (419) Mod! tah o presto shal ot ceed 7.80. m4 D> 10.26 (404) 5 Parse Leary pb opr ininy a Tate rece vw ton en. cp Sls ena une (90) pacage's he suc ao ‘the product number. OHARaARBHHBBRBARARARHSEH (rine Hootooeeeeny 1.27 (050) BSC 1.10 4.713 75 (0%) C3} hw teen) r 0 (aay A cc | £ aS Sse 2s 10 o m (OAs, fil dE T

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28-PIN (600 mils wide) CERAMIC DUAL IN-LINE WITH WINDOW (F) PACKAGE a2) SE NOTES | LL soe 2a) T Convoling mension: ches. Mineters a6 shown n (103) ao (02) coun | 1 ——— / 2 rer and "Eare eleronce data’ on the Body | BIBI SII Sf BM SSA tho teal tne and W to bace mamasn ee if 4. These dimensions measured with the leads constrained | to be perpendicular plane | ee, : 5. Pin numbers start with pin #1 and continue | f * 598 (15.19) ‘counterclockwise to pin #28 when viewed from the top. | Ce} i } (Ba (13.08) 6. Denotes window location for EPROM products (see FA ' MIST TTT rrr yr yr | — Taes 0772) | Fo Taso (eam) oro 0.7m 20 1525) | 280 (3.27) a7s way 580 (14.90) | i Be) (note 4) | oe i] 228 (572) max ST f A 138 ass cao) ff i) wasn ff 4 osm f} b sogsanase | 023 (58) oe . 5 010 (28) 605 (1765) i a sam +0 November 12, 1990 12

Philips Components-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 27C256 28-PIN (600 mils wide) PLASTIC DUAL IN-LINE (N) PACKAGE wores: T Contoing dann: inches. Metieae shown in ' poerineses AAAAAAAAAAAAAA * ASOT AD tr slender ual fine (OP) package, 800 th row sparen PLASTIC 26 leads ease 8 ar8s) 3. Dimensions and tolerancing per ANSI Y14. 5M-1982. se ana ear robtence ature on he molded body nd nok male mak tach profuse” Mad po in ae sate on ey ace 5. Thee dmraions maanred ih the leads consaned wo be popensaia' pare 6. Buber sat wih per and conte Countrcoctwiae pn’ £28 whan vewed om th top rT an A A PATETA TATRA TR TRT ETERS! LL season ae sm gran rary 188 (3.94) "moo (1524) eae wre “wohee m_! ves seasy 0 Too 524 o5c-——| eu grpgaetee TB oy ee ar} a2 See 250.0413 04000 os 32-PIN (450 x 550 mils wide) PLASTIC LEADED CHIP CARRIER (A) PACKAGE [om role y el rey HET specification ry sa — * SORE AE ex poss ocsed chp carr 32 loa, | 2 960 inch tad spacing, rectanguls. femve A. O/8Sh = 5 | ee Sees wn vreau |_ RE ane + tet Aetintaas suet ore a | exits plastic body. 2 d — j 5 Thue ener eo ot ice meld prota, al : p= OST SE are natned ehere these a a: p= 22 7 {aioe anummiad el weeing pane "os | 1 aw B ea 8. Pin numbers continue counterclockwise to pin #32 cee ae a 0. meron ard trnon nc ate and Py |; deme: 10" Zignatse order sede for product packaged in. & sie | i re PLCC fa the sufi "A" after the product number. 4 es choad i ry |__* she ioe ee _ / =o" ost aa--/ se ! ft c ~ , ae (7773 es — Y pp i ‘soe 4711 ane November 12, 1990. 13

Philips Components-Signetics Memory Products Product Specification 256K-bit CMOS EPROM (32K x 8) 270256 i DEFINITIONS Du Show Wilton bation | ‘This data shoot containe the design targot or goal specifications for product development. Spectcations | cates | Femtewrnonien | eso i ‘This data shoot contains proliminary data, and supplementary data willbe publahed at a later dato ! Preliminary Specification reproduction Product Signotics reserves the right to make changes at any time without notice in order to Improve design and ‘upply the best possible product. This data shoot contains Final Specfications. Signatics resorves the right to make changes af any time ce ‘Signetics reserves the right to make changes without notice in the products, including circuits, standard cells, and/or software, described or contained herein, in order to improve design and/or performance. Signetics assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work infringement, unless otherwise specified. Applications that are described herein for any of these prod- ucts are for illustrative purposes only. Signetics makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. ' UFE SUPPORT APPLICATIONS | ‘Signetics Products are not designed for use in life support appliances, devices, or systems where malfunction of a Signetics Product can reasonably ! be expected to result in a personal injury. Signetics customers using or selling Signetics Products for use in such applications do so at their own risk, and agree to fully indemnify Signetics for any damages resulting from such improper use or sale. Signetics Company ‘Signetics registers eligible circuits under = . 811 East Arques Avenue the Semiconductor Chip Protection Act. Si netics P.O. Box 3409 ©Copyright 1990 NAPC. ‘Sunnyvale, Callfornia 94088-3409 All rights reserved. Printed in U.S.A. 18 division of North American Philige Corporstion Telephone 408/991-2000 98-6231-370 0382N/4M/CR1/1290 November 12, 1990 1 VAN O 8 1001 os