74FR16245 NSC | Alldatasheet
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N . PS ZA National November 990 | . Bo] Semiconductor =a a LS) 74FR16245 a a 16-Bit Transceiver with TRI-STATE® Outputs 3 o General Description Features = The ’FR16245 contains sixteen non-inverting bidirectional ™ Non-inverting buffers + buffers with TRI-STATE outputs and is intended for bus-ori- im Bidirectional data paths = ented applications. Current sinking capability is 64 mA on™ A and B output sink capability of 64 mA, source » both the A and B ports. The device is byte controlled. Each capability of 15 mA 2 byte has separate controt inputs which can be shorted to- im Separate control pins for each byte 8 gether for full 16-bit operation. The transmit/receive (T/FN) —g Guaranteed 4000V minimum ESD protection ry inputs determine the direction of data flow through the . = transceiver. The output enable (OEn) inputs disable both A eyaranvoed rt pin skow P-4 and B ports by placing them in an high impedance state. @ Low TRI: IL pL 4 @ 16-Bit version of the 'F245 or "F645 < sz Logic Symbol Connection Diagram Zz ' n Pin Assignment _ for PCC > By 2¥¢cBy 4B, GND By Bg By Bg Bs B = Ay Ay Ay Ag As A Aig Ayy Ang Ay Apa Ay T2°CCP 1910" 9 M6 87 M6 M5 M4 Aa Ar Az As Ad As As Ar Ag Ay Aig Ais Aia Ars Ata At Te eo coo mecca m Oj oe; 0,0 POO . -. i) Ry Ry 5:0 ml im (les 9 By By By Bs By Bs Bg By By By Bio 84582 B13 B14 B15 5,6 a me = 8,500 mH ND ne] urns Be = or, 2 Me 7) r= P| KOR, Av 3 OM — 2 or, GND BB OM BA Ay3 2B ia) Av @ i) i ono Voc Ay QOUUUOUTOI” Bees e0s088 AyrAto Ae Ag A7 AGGND As Ay Veo As TWF 0614-3 TRISTATE® isa registered trademark of National Semiconductor Corporation FACT ia trademark of Natonl Seiconductor Corporation ©1990 Nabonal Semiconductor Corporation —TL/F/10614 ! RRD-B820M110/Printed in U. S.A.
[PinNames | Description OE, Output Enable Input TR, Transmit/Receive Input Ao-A15 A Bus Inputs/ TRI-STATE Outputs Bo-Bis, B Bus Inputs/ TRI-STATE Outputs Truth Table [| inputs tput operating Mode Byte (0:7) Byte2 (8:15) | oe | wm | Oe, | TR, | Bytet(o7) | Bytea(@:t5) L L H x Bus B Data toA High Z State L H H x Bus A Data to B High Z State H x L L High Z State Bus B Data toA H x L H High Z State Bus A Data to B L L L L Bus B Data toA Bus B Data to A L H L H Bus A Data to B Bus A Data to B H x H x High Z State High Z State H = High Voltage Level L = Low Voltage Level X = Immaterial Logic Diagram my d_) CP me al T) =. poeeenene- a wee eeeeees ' ' Ly ' 1 4 > <I Mot ' | eal \\ ' ' t <] [> t t t ' 10F 8 ' a TL/F/10614-2
Absolute Maximum Ratings (note 1) If Military/Aerospace specified devices are required, Current Applied to Output please contact the National Semiconductor Sales in LOW State (Max) Twice the Rated Io, (mA) Oftice/Distributors for availability and specifications. ESD Last Passing Voltage (Min) 4000V Storage Temperature —65°C to + 150°C Note 1: Absolute maximum ratings are values beyond which the device may Ambient Temperature under Bias 55°C to + 125°C be damaged or have its useful life impaired. Functional operation under ° , , these conditions is not implied. Junction Temperature under Bias — 55°C to + 175°C Note 2: Either voltage limit or current limit is sufficient to protect inputs. Vcc Pin Potential to Ground Pin —0.5V to +7.0V Recommended Operating Input Voltage (Note 2) —0.5V to +7.0V Conditions Input Current | (Note 2) —30 mA to + 5.0mA Free Air Ambient Temperature Voltage Applied to Output Commercial 0°C to +70°C in HIGH State (with Vocg = OV) Si upply Voltage Standard Output —0.5V to Voc . TRI-STATE Output -0.5Vto +5.5V Commercial +45V 10 +5.5V 74FR Symbol Conditions . Vin Input HIGH Vv Recognized as Voltage a HIGH Signal Vit Input LOW Vv Recognized as Voltage a LOW Signal Veo Input Clamp Vv ln = —18mA Diode Voltage Vou Output HIGH 24 28 lou = — 3mA Voltage 2.0 2.44 Vv lon = — 15mA (Any Bo) Vo Output LOW lo, = 64 mA Voltage 0.48 v (An, Bn) hi Input HIGH Vin = 2.7V Current HA levi Input HIGH Vin = 7.0V Current Break- 7.0 pA (Ep, T/R,) Down Test os lever Input HIGH _ Vin = 5.5V Current Breakdown, mA ( an Bn) Test (I/O) mem Ie Input LOW BA Max Vin = 0.5V (T/Rp, Ans Bn) Current pA Max Vin = 0.5V (OE,)
los Output Short- _ _ Vout = 0V Circuit Current 100 225 mA (An, Bn) NH + Output Leakage A Vout = 2.7V loz Current m (An. Bn) Wet Output Leakage _ Vout = 0.5V lozi Current 20 BA (Ap, Br) loex Output High Leakage A Vout = Voc Current a (An, Bn) Vio Input Leakage 475 v lip = 1.9 nA Test " All Other Pins Grounded lop Output Circuit 375 A Viop = 150 mV Leakage Current " M All Other Pins Grounded lzz Bus Drainage A Vout = 5.25V Test ba (An. Br) ‘eon Curent || | me | mm | man | vows Current ‘en Curent | [vee | tee | | mae | vonren Current ee Curent Lm | 05 | mm | man | vonnen? Current own InputCapacitance | | ao | | or | 50 | ORT [fo [oT 50 Tandy Ta = +25°C Ta, Voc = Comm Symbol Voc = +5.0V Voc = Comm Unit Cy = 50 pF Cy = 50 pF [Min typ Max | Min Max | teLH Propagation Delay 1.3 27 4.3 13 43 ns tPHL An to By Or By to An, 1.3 2.2 4.3 1.3 43 tezH Output Enable Time 3.9 69 13.9 3.9 13.9 ns tezi 3.9 97 13.9 3.9 13.9 tpHz Output Disable Time 1.8 3.9 6.3 1.8 63 ns tpiz 18 4.4 63 1.8 63
Extended AC Characteristics 74FR 74FR Ta = Comm Vcc = Comm Ta = Comm Symbol C, = 50 pF Voc = Comm Unit 16 Outputs C. = 250 pF Switching (Note 2) (Note 3) tPLH Propagation Delay 13 58 32 8.2 ns teat An to Bn OF Bn to An 13 58 3.2 82 tpzu Output Enable Time 3.9 146 ns tpzi 3.9 146 tpHz Output Disable Time 18 63 ns tpiz 18 63 tosHL Pin to Pin Skew (Note 1) for HL Transitions TBD ns tostH Pin to Pin Skew (Note 1) for LH Transitions TBD ns tost Pin to Pin Skew (Note 1) for HL/LH Transitions TBD ns Note 1: Skew is defined as the absolute value of the difference between the actual propagation delays for any two outputs of the same device. The specification applies to any outputs switching HIGH to LOW (tog) LOW to HIGH (tos). of any combination of HIGH to LOW and/or LOW to HIGH (tost). Note 2: This specification is guaranteed but not tested The limits apply to propagation delays for all paths described switching in phase, i.e., all LOW-to-HIGH, HIGH-to-LOW, TRI-STATE-to-HIGH, etc. Note 3: These specifications guaranteed but not tested. The limits represent propagation delays with 250 pF load capacitors in place of the 50 pF load capacitors in the standard AC load. This specification pertains to single output switching only.
Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are defined as follows: 74FR 16245 Q C QR Temperature Range Family ne = Special Variations 74FR =Commercial X = Devices shipped in 13” ; reels Device Type QR = Commercial grade device Package Code with burn-in Q = Plastic Lead Chip Carrier (PCC) Temperature Range C=Commercial (0°C to + 70°C)
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iv) = 015 TT 8 a4 we oczs—o0s2 4b oroe—osv q Gom—oms) | ee 2mT 2 em — x we 0.685 0.605. +t SQUARE s 44-Lead Plastic Chip Carrier (Q) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant support device or system whose failure to perform can into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life failure to perform, when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can effectiveness. be reasonably expected to result in a significant injury . to the user. MAR 12 1991 - ee AA Nations! Semiconductor National Semiconductor National Semiconductor National Semiconductor ‘National Semicondutores National Semiconductor Corporation ‘GmbH Japan Ltd. Hong Kong Lia. Do Braeil Ltda. (Australia) PY, Lid. 2900 Semiconductor Ove industiostrasso 10 Sansa Bldg. SF Suto 519, th Floor ‘Av. Brg Fan Lima, 1369 1st Foor, 443 SU Kida Rd .0. Box 58000 10.8080 Furstonoldbruck 4-15 Nahi Shinui Chinachom Golden Plaza, {60 Andor Con. 62 Melbourne, 9008 Sania Cara, CA 95052-8000 Was! Germany Shinuke Ku, 77 Mody Road, Tamshalaui East, 01481 Seo Paulo, SP, Brasil ——_Vitory, Australia Tet (408) 721-5000 Tob (081-41) 103-0 Tokyo 160, Japan Kowoon, Hong Kong Tol (55/11) 212-8006 Tet (03) 267-5000 TWX: (910) 339-0240 Tolox §27-649 Tot 3.290-7001 Tot 37231290 Fax (65/11) 211-1181 NSBR BR Fax 61-3-2677458 Fax (08141) 103554 FAX. 3-206-7000 Tolex: 52096 NSSEA HX Fax 3:3112596 “event eyecare cua ec