INTEGRATED CIRCUITS 74F257A Quad 2-line to 1-line selector/multiplexer, non-inverting (3-State) Product specification IC15 Data Handbook Philips Semiconductors 1995 Mar 31 Philips Semiconductors Product specification Quad 2-line to 1-line selector/multiplexer, non-inverting (3-State) FEATURES 74F257A PIN CONFIGURATION • Industrial range available (–40°C to +85°C) • Multifunction capability • Non-inverting data path • 3-State outputs • See 74F258A for inverting version 1 16 VCC I0a 2 15 OE I1a 3 14 I0d Ya 4 13 I1d I0b 5 12 Yd I1b 6 11 I0c Yb 7 10 I1c GND 8 9 Yc DESCRIPTION The 74F257A has four identical 2-input multiplexers with 3-State outputs which select 4 bits of data from two sources uncer control of a common Select (S) input. The I0a inputs are selected when the common Select input is Low and the I1n inputs are selected when the common Select input is High. Data appears at the outputs in true non-inverted form from the selected inputs. The 74F257A is the logic implementation of a 4-pole, 2-position switch where the position of the switch is determined by the logic levels supplied to the common Slect input. Outputs are forced to a high impedance “off” state when the Output Enable (OE) is High. All but one device must be in high impedance state to avoid currents that would exceed the maximum rating if the outputs were tied together. Design of the Output Enable signals must ensure that there is no overlap when outputs of 3-state devices were tied together. S SF00673 TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F257A 4.3ns 12mA ORDERING INFORMATION ORDER CODE DRAWING NUMBER DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C INDUSTRIAL RANGE VCC = 5V ±10%, Tamb = –40°C to +85°C 16-pin plastic DIP N74F257AN I74F257AN SOT38-4 16-pin plastic SO N74F257AD I74F257AD SOT109-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS DESCRIPTION I0n, I1n S OE Ya – Yd 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW Data inputs 1.0/1.0 20µA/0.6mA Common Select input 1.0/1.0 20µA/0.6mA Output Enable input (active Low) 1.0/1.0 20µA/0.6mA Data outputs 150/33 3.0mA/20mA NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state. LOGIC SYMBOL LOGIC SYMBOL (IEEE/IEC) 15 2 3 5 6 11 10 14 13 I1b I0c I1c I0d I1d 1 2 I0a I1a I0b 1 15 3 S 5 OE 6 Ya Yb Yc EN G1 1 MUX 4 1 7 10 Yd 9 11 13 VCC = Pin 16 GND = Pin 8 1995 Mar 31 4 7 9 12 14 12 SF00675 SF00674 2 853–0360 15059 Philips Semiconductors Product specification Quad 2-line to 1-line selector/multiplexer, non-inverting (3-State) LOGIC DIAGRAM 74F257A FUNCTION TABLE INPUTS OE I0a 15 I1a 2 I0b 3 I1b 5 I0c 6 I1c 11 I0d 10 I1d 14 S 13 1 OE S I0 I1 Y H X X X Z L H X L L L H X H H L L L X L L H X H L H L X Z 4 7 Ya 9 Yb Yc OUTPUT = = = = High voltage level Low voltage level Don’t care High impedance “off” state 12 Yd VCC = Pin 16 GND = Pin 8 SF00676 APPLICATION ENABLE S2 C 74F139 B A Y0 Y1 Y2 Y3 S1 S0 WORD A WORD B I0a I1a I0b I1b I0c I1c I0d I1d OE WORD C WORD E I0a I1a I0b I1b I0c I1c I0d I1d OE 74F257A S WORD D Ya Yb Yc Yd I0a I1a I0b I1b I0c I1c I0d I1d OE 74F257A S WORD F Yb Yc Yd WORD H I0a I1a I0b I1b I0c I1c I0d I1d OE 74F257A S Ya WORD G 74F257A S Ya Yb Yc Yd Ya Yb Yc Yd 4-BIT DATA BUS SF00677 1995 Mar 31 3 Philips Semiconductors Product specification Quad 2-line to 1-line selector/multiplexer, non-inverting (3-State) 74F257A ABSOLUTE MAXIMUM RATINGS (Operation beyond the limits 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 Tamb Operating free-air free air temperature range Tstg Storage temperature range 48 mA Commercial range 0 to +70 °C Industrial range –40 to +85 °C –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 –3 mA IOL Low-level output current 24 mA Tamb Operating free-air free air temperature range 1995 Mar 31 V V Commercial range 0 +70 °C Industrial range –40 +85 °C 4 Philips Semiconductors Product specification Quad 2-line to 1-line selector/multiplexer, non-inverting (3-State) 74F257A DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL LIMITS TEST CONDITIONS1 PARAMETER TYP2 MIN VCC = MIN,, VIL = MAX,, VIH = MIN, IOH = MAX ±10%VCC 2.4 ±5%VCC 2.7 UNIT MAX V VOH O High level output voltage High-level VOL O Low level output voltage Low-level VIK Input clamp voltage VCC = MIN, II = IIK II Input current at maximum input voltage VCC = MAX, VI = 7.0V IIH High-level input current VCC = MAX, VI = 2.7V 20 µA IIL Low-level input current VCC = MAX, VI = 0.5V –0.6 mA 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 –150 mA 9.0 15.0 mA 14.5 22.0 mA 15.0 23.0 mA VCC = MIN,, VIL = MAX,, VIH = MIN, IOL = MAX 3.3 ±10%VCC 0.35 0.50 V ±5%VCC 0.35 0.50 V –0.73 –1.2 V 100 µA -60 ICCH ICC Supply current4 (total) ICCL V 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. 4. Measure ICC with all outputs open and inputs grounded. AC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER TEST CONDITION Tamb = +25°C VCC = +5.0V CL = 50pF RL = 500Ω Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF RL = 500Ω Tamb = –40°C to +85°C VCC = +5.0V ± 10% CL = 50pF RL = 500Ω MIN TYP MAX MIN MAX MIN MAX UNIT tPLH tPHL Propagation delay In to Yn Waveform 1 3.0 2.0 4.5 3.5 6.0 5.0 3.0 2.0 7.0 6.0 3.0 2.0 7.0 7.0 ns tPLH tPHL Propagation delay S to Yn Waveform 1 5.0 4.0 7.5 5.5 9.5 7.0 5.0 4.0 10.5 8.0 5.0 4.0 10.5 8.5 ns tPZH tPZL Output Enable time to High or Low level Waveform 2 Waveform 3 4.5 4.5 6.5 6.0 7.5 7.5 4.5 4.5 8.5 8.5 4.5 4.5 8.5 8.5 ns tPHZ tPLZ Output Disable time from High or Low level Waveform 2 Waveform 3 2.0 2.0 4.0 3.5 5.5 5.5 2.0 2.0 6.0 6.0 2.0 2.0 6.0 6.0 ns 1995 Mar 31 5 Philips Semiconductors Product specification Quad 2-line to 1-line selector/multiplexer, non-inverting (3-State) 74F257A AC WAVEFORMS For all waveforms, VM = 1.5V. VM In or S VM tPHL tPLH VM Yn VM SF00679 Waveform 1. Propagation Delay, Data and Select to Output OE OE VM VM tPZH VM tPHZ VM tPZL tPLZ Yn VOH–0.3V VM Yn VM VOL+0.3V 0V SF00213 SF00214 Waveform 2. 3-State Output Enable Time to High Level and Output Disable Time from High Level Waveform 3. 3-State Output Enable Time to Low Level and Output Disable Time from Low 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 1995 Mar 31 6 Philips Semiconductors Product specification Quad 2-line 1-line selector/multiplexer, non-inverting (3-State) DIP16: plastic dual in-line package; 16 leads (300 mil) 1995 Mar 31 7 74F257A SOT38-4 Philips Semiconductors Product specification Quad 2-line 1-line selector/multiplexer, non-inverting (3-State) SO16: plastic small outline package; 16 leads; body width 3.9 mm 1995 Mar 31 8 74F257A SOT109-1 Philips Semiconductors Product specification Quad 2-line 1-line selector/multiplexer, non-inverting (3-State) NOTES 1995 Mar 31 9 74F257A Philips Semiconductors Product specification Quad 2-line 1-line selector/multiplexer, non-inverting (3-State) 74F257A DEFINITIONS Data Sheet Identification Product Status Definition Objective Specification Formative or in Design This data sheet contains the design target or goal specifications for product development. Specifications may change in any manner without notice. Preliminary Specification Preproduction Product This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Product Specification Full 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. Philips Semiconductors and Philips Electronics North America Corporation reserve 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. Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. LIFE SUPPORT APPLICATIONS Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices, or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 Philips Semiconductors and Philips Electronics North America Corporation register eligible circuits under the Semiconductor Chip Protection Act. Copyright Philips Electronics North America Corporation 1996 All rights reserved. Printed in U.S.A. (print code) Document order number: Date of release: July 1994 9397-750-05107