74F1240 PHILIPS | Alldatasheet

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/C0109 /C0110 /C0114 74F1240 Octal inverter buffer (3-State) 74F1241 Octal buffer (3-State)* Product specification Supercedes data of 1989 Apr 04 IC15 Data Handbook

1999 Jan 08

  • Discontinued part. Please see the Discontinued Product List.

Philips Semiconductors Product specification 74F1240, 74F1241*Buffers 74F1240 Octal inverter buffer (3-State)

21999 Jan 08 853–0039 20619

  • Discontinued part. Please see the Discontinued Products List.

FEATURES

  • High impedance NPN base inputs for reduced loading (20µA in High and Low states)
  • Low power, light loading
  • Functional pin-for-pin equivalent of 74F240 and 74F241
  • 1/30th the bus loading of 74F240 and 74F241
  • Provides ideal interface and increase fan-out of MOS microprocessors
  • Octal bus interface
  • 3-State buffer outputs sink 64mA
  • 15mA source current

DESCRIPTION

The 74F1240 and 74F1241 are octal buffers that are ideal for driving bus lines or buffer memory address registers. The outputs are capable of sinking 64mA and sourcing up to 15mA, producing very good capacitive drive characteristics. The device features two Output Enables, OE a and OEb, each controlling four of the 3-State outputs. TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F1240 3.5ns 40mA 74F1241 4.5ns 46mA

ORDERING INFORMATION

VCC = 5V ±10%, Tamb = 0°C to +70°C DRAWING NUMBER 20-pin plastic DIP N74F1240N SOT146-1 20-pin plastic SOL N74F1240D SOT163-1 INPUT AND OUTPUT LOADING AND FAN OUT TABLE PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW Ian, Ibn Data inputs 1.0/0.033 20µA/20µA OE a, OEb Output enable inputs (active Low) 1.0/0.033 20µA/20µA OEb Output enable input (active High, 74F1241) 1.0/0.033 20µA/20µA Yan, Ybn Data outputs (74F1241) 750/106.7 15mA/64mA Yan, Ybn Data outputs (74F1240) 750/106.7 15mA/64mA NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.

Philips Semiconductors Product specification 74F1240, 74F1241*Buffers

1999 Jan 08 3

  • Discontinued part. Please see the Discontinued Products List. PIN CONFIGURATION – 74F1240 10 11 SF00320 OE a Ia0 Yb0 Ia1 Yb1 Ia2 Yb2 Ia3 Yb3 GND VCC OE b Ya0 Ib0 Ya1 Ib1 Ya2 Ib2 Ya3 Ib3 PIN CONFIGURATION – 74F1241 10 11 SF00324 OE a Ia0 Yb0 Ia1 Yb1 Ia2 Yb2 Ia3 Yb3 GND VCC OEb Ya0 Ib0 Ya1 Ya2 Ib2 Ya3 Ib3 Ib1 LOGIC SYMBOL – 74F1240 VCC = Pin 20 GND = Pin 10 SF00321 OEa OEb 2 4 6 8 17 15 13 11 1 8 1 6 1 4 1 2 3579 Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3 Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3 LOGIC SYMBOL – 74F1241 VCC = Pin 20 GND = Pin 10 SF00325 2 4 6 8 17 15 13 11 18 16 14 12 3 5 7 9 Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3 OEa OEb Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3 IEC/IEEE SYMBOL – 74F1240

1 EN1

IEC/IEEE SYMBOL – 74F1241

Philips Semiconductors Product specification 74F1240, 74F1241*Buffers

1999 Jan 08 4

  • Discontinued part. Please see the Discontinued Products List. LOGIC DIAGRAM – 74F1240 Ia0 21 8 Ya0 Ia1 41 6 Ya1 Ia2 61 4 Ya2 Ia3 81 2 Ya3 OE a Ib0 17 3 Yb0 Ib1 15 5 Yb1 Ib2 13 7 Yb2 Ib3 11 9 Yb3 OE b 19 SF01369 FUNCTION TABLE – 74F1240 INPUTS OUTPUTS OE a Ia OE b Ib Ya Yb L L L L H H L H L H L L H X H X Z Z H = High voltage level L = Low voltage level X = Don’t care Z = High impedance “off” state LOGIC DIAGRAM – 74F1241 Ia0 21 8 Ya0 Ia1 41 6 Ya1 Ia2 61 4 Ya2 Ia3 81 2 Ya3 OE a Ib0 17 3 Yb0 Ib1 15 5 Yb1 Ib2 13 7 Yb2 Ib3 11 9 Yb3 OEb 19 SF01370 FUNCTION TABLE – 74F1241 INPUTS OUTPUTS OE a Ia OEb Ib Ya Yb L L H L L L L H H H H H H X L X Z Z H = High voltage level L = Low voltage level X = Don’t care Z = High impedance “off” state ABSOLUTE MAXIMUM RATINGS (Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.) SYMBOL PARAMETER RATING UNIT VCC Supply voltage –0.5 to +7.0 V VIN Input voltage –0.5 to +7.0 V IIN Input current –30 to +5 mA VOUT Voltage applied to output in High output state –0.5 to VCC V IOUT Current applied to output in Low output state 128 mA Tamb Operating free-air temperature range 0 to +70 °C Tstg Storage temperature range –65 to +150 °C

Philips Semiconductors Product specification 74F1240, 74F1241*Buffers

1999 Jan 08 5

  • Discontinued part. Please see the Discontinued Products List. RECOMMENDED OPERATING CONDITIONS SYMBOL PARAMETER LIMITS UNITSYMBOL PARAMETER MIN NOM MAX UNIT VCC Supply voltage 4.5 5.0 5.5 V VIH High-level input voltage 2.0 V VIL Low-level input voltage 0.8 V IIK Input clamp current –18 mA IOH High-level output current –15 mA IOL Low-level output current 64 mA Tamb Operating free-air temperature range 0 +70 °C DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL PARAMETER TEST CONDITIONS 1 LIMITS UNITSYMBOL PARAMETER TEST CONDITIONS 1 MIN TYP MAX UNIT IO = 3mA ±10% V CC 2.4 V VO High level output voltage VCC = MIN VIL= MAX IOH = –3mA ±5% V CC 2.7 3.3 V VOH High-level output voltage VIL = MAX VIH = MIN IO = 15mA ±10% V CC 2.0 V IOH = –15mA ±5% V CC 2.0 V VO Low level output voltage VCC = MIN VIL= MAX IOL = 48mA ±10% V CC 0.38 0.55 V VOL Low-level output voltage VIL = MAX VIH = MIN IOL = 64mA ±5% V CC 0.42 0.55 V VIK Input clamp voltage VCC = MIN, II = IIK –0.73 –1.2 V II Input current at maximum input voltageVCC = 0.0V, VI = 7.0V 100 µA IIH High-level input current VCC = MAX, VI = 2.7V 20 µA IIL Low-level input current VCC = MAX, VI = 0.5V –20 µA IOZH Off-state output current, High-level voltage applied VCC = MAX, VO = 2.7V 50 µA IOZL Off-state output current, Low-level voltage applied VCC = MAX, VO = 0.5V –50 µA IOS Short-circuit output current3 VCC = MAX –100 –225 mA ICCH 22 30 mA 74F1240 ICCL VCC = MAX 58 75 mA ICC Supply current (total) ICCZ 44 58 mA ICC Supply current (total) ICCH 33 44 mA 74F1241 ICCL VCC = MAX 62 80 mA ICCZ 45 60 mA NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type. 2. All typical values are at VCC = 5V, Tamb = 25°C. 3. Not more than one output should be shorted at a time. For testing IOS , the use of high-speed test apparatus and/or sample-and-hold techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any sequence of parameter tests, IOS tests should be performed last.

Philips Semiconductors Product specification 74F1240, 74F1241*Buffers

1999 Jan 08 6

  • Discontinued part. Please see the Discontinued Products List. AC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER TEST CONDITION Tamb = +25°C VCC = +5.0V C L = 50pF, RL = 500Ω Tamb = 0°C to +70°C VCC = +5.0V ± 10% C L = 50pF, RL = 500Ω UNIT MIN TYP MAX MIN MAX tPLH tPHL Propagation delay Ian, Ibn, to Yn Waveform 1 3.0 1.5 4.5 2.5 6.5 4.5 2.5 1.5 7.5 5.0 ns ns tPZH tPZL Output Enable time to High or Low level 74F1240 Waveform 3 Waveform 4 3.0 4.0 5.5 7.0 7.5 9.0 3.0 4.0 8.0 9.5 ns ns tPHZ tPLZ Output Disable time to High or Low level Waveform 3 Waveform 4 2.0 2.0 4.0 4.0 6.0 5.5 2.0 2.0 6.5 6.0 ns ns tPLH tPHL Propagation delay Ian, Ibn, to Yn Waveform 2 2.5 2.5 4.0 5.0 5.5 6.5 2.5 2.5 6.0 7.0 ns ns tPZH tPZL Output Enable time to High or Low level 74F1241 Waveform 3 Waveform 4 3.0 3.0 5.5 6.5 7.0 8.0 3.0 3.0 7.5 8.5 ns ns tPHZ tPLZ Output Disable time to High or Low level Waveform 3 Waveform 4 3.0 3.0 5.5 6.0 7.5 8.0 3.0 3.0 8.5 8.5 ns ns AC WAVEFORMS For all waveforms, VM = 1.5V. Ian, Ibn VM VM VMVM tPLHtPHL Yn SF00328 Waveform 1. For Inverting Outputs Ian, Ibn VM VM VMVM tPHLtPLH Yn SF00329 Waveform 2. For Non-inverting Outputs VM VM VM tPHZtPZH VOH -0.3V Yn, Yn OE n OEb SF00330 Waveform 3. 3-State Output Enable Time to High Level and Output Disable Time from High Level VM VM VM tPLZtPZL VOL +0.3V 3.5V OE n OEb Yn, Yn SF00331 Waveform 4. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level

Philips Semiconductors Product specification 74F1240, 74F1241*Buffers

1999 Jan 08 7

  • Discontinued part. Please see the Discontinued Products List. TEST CIRCUIT AND WAVEFORMS tw 90% VM 10% 90% VM 10% 90% VM 10% 90% VM 10% NEGATIVE PULSE POSITIVE PULSE tw AMP (V) tTHL (tf ) INPUT PULSE REQUIREMENTS rep. rate tw tTLH tTHL 1MHz 500ns 2.5ns 2.5ns Input Pulse Definition VCC family 74F D.U.T.PULSE GENERATOR R LC LR T VIN VOUT Test Circuit for Open Collector Outputs DEFINITIONS: R L = Load resistor; see AC electrical characteristics for value. C L = Load capacitance includes jig and probe capacitance; see AC electrical characteristics for value. R T = Termination resistance should be equal to ZOUT of pulse generators. tTHL (tf ) tTLH (tr ) tTLH (tr ) AMP (V) amplitude 3.0V 1.5V VM R L 7.0V SF00128 TEST SWITCH tPLZ closed tPZL closed All other open SWITCH POSITION

Philips Semiconductors Product specification 74F1240, 74F1241*Buffers

1999 Jan 08 8

  • Discontinued part. Please see the Discontinued Product List. DIP20: plastic dual in-line package; 20 leads (300 mil) SOT146-1

Philips Semiconductors Product specification 74F1240, 74F1241*Buffers

1999 Jan 08 9

  • Discontinued part. Please see the Discontinued Product List. SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1

Philips Semiconductors Product specification 74F1240, 74F1241*Buffers

1999 Jan 08 10

  • Discontinued part. Please see the Discontinued Product List. Definitions Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Disclaimers Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes — Philips Semiconductors 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. Philips Semiconductors 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 right infringement, unless otherwise specified. Philips Semiconductors

811 East Arques Avenue

P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381  Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. Date of release: 03-98 Document order number: 9397-750-05191 /C0109 /C0110 /C0114 Data sheet status Objective specification Preliminary specification Product specification Product status Development Qualification Production Definition [1] This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make chages at any time without notice in order to improve design and supply the best possible product. This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Data sheet status [1] Please consult the most recently issued datasheet before initiating or completing a design. * Discontinued part. Please see the Discontinued Product List in Section 1, page 21.