N74F1244N,602

INTEGRATED CIRCUITS 74F1244 Octal buffer (3-State) Product specification IC15 Data Handbook
     1989 Apr 04 Philips Semiconductors Product specification Octal buffer (3-State) 74F1244 FEATURES PIN CONFIGURATION • High impedance NPN base inputs for reduced loading (20µA in High and Low states) OEa 1 20 VCC • Low power, light loading • Functional pin-for-pin equivalent of 74F244 • 1/30th the bus loading of 74F244 • Provides ideal interface and increase fan-out of MOS 19 OEb 18 Ya0 Ia1 4 17 Ib0 Yb1 5 16 Ya1 Ia2 6 15 Ib1 Yb2 7 14 Ya2 Ia3 8 13 Ib2 Yb3 9 12 Ya3 GND 10 11 Ib3 microprocessors • Octal bus interface • 3-State buffer outputs sink 64mA and source 15mA Ia0 2 Yb0 3 SF00227 DESCRIPTION The 74F1244 is an octal buffer that is 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, OEa and OEb, each controlling four of the 3-State outputs. The 74F1244 is pin and functionally compatible with the 74F244. The lower power and light bus loading features make it an ideal part to interface directly with MOS microprocessors. TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F1244 4.5ns 43mA ORDERING INFORMATION DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C DRAWING NUMBER 20-pin plastic DIP N74F1244N SOT146-1 20-pin plastic SOL N74F1244D SOT163-1 INPUT AND OUTPUT LOADING AND FAN OUT TABLE PINS DESCRIPTION Ian, Ibn Data inputs 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW 1.0/0.033 20µA/20µA OEa, OEb Output enable inputs (active Low) 1.0/0.033 20µA/20µA Yan, Ybn Data outputs 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. LOGIC SYMBOL IEC/IEEE SYMBOL 2 4 6 8 17 15 13 1 11 19 Ia0 1 OEa 19 OEb Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 2 Ib3 18 16 14 12 3 5 7 9 VCC = Pin 20 GND = Pin 10 1 18 16 6 14 8 12 2 3 15 5 13 7 11 9 SF01366 SF00228 1989 Apr 04 EN2 4 17 Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3 EN1 2 853–0041 96221 Philips Semiconductors Product specification Octal buffer (3-State) 74F1244 LOGIC DIAGRAM FUNCTION TABLE INPUTS Ia0 Ia1 Ia2 Ia3 OEa 2 18 4 16 6 8 14 12 Ya0 Ib0 Ya1 Ib1 Ya2 Ya3 1 Ib2 Ib3 OEb 17 3 15 5 13 7 11 9 Yb0 OUTPUTS OEa Ia OEb Ib Ya Yb L L L L L L L H L H H H X H X Z Z Yb1 H Yb2 H L X Z Yb3 19 = = = = High voltage level Low voltage level Don’t care High impedance “off” state VCC = Pin 20 GND = Pin 10 SF00230 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.) PARAMETER SYMBOL 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 RECOMMENDED OPERATING CONDITIONS LIMITS SYMBOL PARAMETER UNIT MIN NOM MAX 5.0 5.5 VCC Supply voltage 4.5 VIH High-level input voltage 2.0 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 +70 °C 1989 Apr 04 0 3 V V Philips Semiconductors Product specification Octal buffer (3-State) 74F1244 DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL VOH O LIMITS TEST CONDITIONS1 PARAMETER IOH 3mA O = –3mA VCC = MIN, VIL = MAX MAX, VIH = MIN High level output voltage High-level IOH 15mA O = –15mA MIN TYP2 MAX UNIT ±10% VCC 2.5 ±5% VCC 2.7 ±10% VCC 2.0 V ±5% VCC 2.0 V V 3.4 V IOL = 48mA ±10% VCC 0.38 0.55 V IOL = 64mA ±5% VCC 0.42 0.55 V –0.73 –1.2 V 100 µA VCC = MAX, VI = 2.7V 20 µA VCC = MAX, VI = 0.5V –20 µA 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 –225 mA 30 40 mA ICC Supply current (total) 57 75 mA 43 58 mA VCC = MIN, VIL = MAX MAX, VIH = MIN VOL O Low level output voltage Low-level VIK Input clamp voltage VCC = MIN, II = IIK II Input current at maximum input voltage VCC = 0.0V, VI = 7.0V IIH High-level input current IIL Low-level input current IOZH –100 ICCH ICCL VCC = MAX ICCZ 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. AC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER Tamb = +25°C VCC = +5.0V CL = 50pF, RL = 500Ω TEST CONDITION Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF, RL = 500Ω MIN TYP MAX MIN MAX UNIT tPLH tPHL Propagation delay Ian, Ibn to Yn Waveform 1 2.5 2.0 4.0 5.0 5.5 7.0 2.5 2.0 6.0 7.5 ns ns tPZH tPZL Output Enable time to High or Low level Waveform 2 Waveform 3 3.0 3.0 6.0 6.5 7.5 8.0 3.0 3.0 8.5 8.5 ns ns tPHZ tPLZ Output Disable time to High or Low level Waveform 2 Waveform 3 2.0 2.0 4.0 4.0 5.5 5.5 2.0 2.0 6.0 6.0 ns ns 1989 Apr 04 4 Philips Semiconductors Product specification Octal buffer (3-State) 74F1244 AC WAVEFORMS For all waveforms, VM = 1.5V. Ian, Ibn VM OEn VM tPLH VM VM tPZL tPHL tPLZ 3.5V Yn VM VM Yn VM VOL+0.3V SF00234 SF00231 Waveform 1. VM OEn Waveform 3. 3-State Output enable Time to Low Level and Output Disable Time from Low Level For Non-Inverting Outputs VM tPZH tPHZ VOH–0.3V VM Yn 0V SF00233 Waveform 2. 3-State Output Enable Time to High Level and Output Disable Time from High Level TEST CIRCUIT AND WAVEFORMS VCC 7.0V VIN RL VOUT PULSE GENERATOR tw 90% NEGATIVE PULSE VM CL AMP (V) VM 10% D.U.T. RT 90% 10% tTHL (tf ) tTLH (tr ) tTLH (tr ) tTHL (tf ) 0V RL AMP (V) 90% 90% Test Circuit for 3-State Outputs POSITIVE PULSE VM VM 10% TEST tPLZ tPZL All other SWITCH closed closed open DEFINITIONS: RL = Load resistor; see AC electrical characteristics for value. CL = Load capacitance includes jig and probe capacitance; see AC electrical characteristics for value. RT = Termination resistance should be equal to ZOUT of pulse generators. 10% tw SWITCH POSITION 0V Input Pulse Definition INPUT PULSE REQUIREMENTS family amplitude VM 74F 3.0V 1.5V rep. rate tw tTLH tTHL 1MHz 500ns 2.5ns 2.5ns SF00777 1989 Apr 04 5 Philips Semiconductors Product specification Octal buffer (3-State) 74F1244 DIP20: plastic dual in-line package; 20 leads (300 mil) 1989 Apr 04 6 SOT146-1 Philips Semiconductors Product specification Octal buffer (3-State) 74F1244 SO20: plastic small outline package; 20 leads; body width 7.5 mm 1989 Apr 04 7 SOT163-1 Philips Semiconductors Product specification Octal buffer (3-State) 74F1244 Data sheet status Data sheet status Product status Definition [1] Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification 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. Product specification Production 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. [1] Please consult the most recently issued datasheet before initiating or completing a design. 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.  Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 Date of release: 05-96 Document order number:
     1989 Apr 04 8 9397 750-05192