74HC157; 74HCT157 Quad 2-input multiplexer Rev. 7 — 21 January 2015 Product data sheet 1. General description The 74HC157; 74HCT157 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL. It is specified in compliance with JEDEC standard no. 7A. The 74HC/HCT157 are quad 2-input multiplexers which select 4 bits of data from two sources under the control of a common data select input (S). The enable input (E) is active LOW.
74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer 3. Ordering information Table 1. Ordering information Type number Package 74HC157N Temperature range Name Description Version 40 C to +125 C DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4 40 C to +125 C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 40 C to +125 C SSOP16 plastic shrink small outline package; 16 leads; body width 5.
74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer , , , , , , , , 6(/(&725 < < * (1 08/7,3/(;(5 2873876 < 08; < Fig 3. 6 ( PQD Logic symbol PQD Fig 4. IEC logic symbol 5. Pinning information 5.
74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer 5.2 Pin description Table 2. Pin description Symbol Pin Description S 1 common data select input 1I0 to 4I0 2, 5, 11, 14 data inputs from source 0 1I1 to 4I1 3, 6, 10, 13 data inputs from source 1 1Y to 4Y 4, 7, 9, 12 multiplexer outputs GND 8 ground (0 V) E 15 enable input (active LOW) VCC 16 supply voltage 6. Functional description Table 3.
74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer 8. Recommended operating conditions Table 5. Recommended operating conditions Voltages are referenced to GND (ground = 0 V) Symbol Parameter Conditions 74HC157 Min Typ 74HCT157 Max Min Typ Unit Max VCC supply voltage 2.0 5.0 6.0 4.5 5.0 5.
74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer Table 6. Static characteristics …continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter CI Tamb = 25 C Conditions input capacitance Tamb = 40 C to +85 C Min Typ Max - 3.5 - Min Max Tamb = 40 C to Unit +125 C Min Max pF 74HCT157 VIH HIGH-level input voltage VCC = 4.5 V to 5.5 V 2.0 1.6 - 2.0 - 2.0 - V VIL LOW-level input voltage VCC = 4.5 V to 5.
4HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer 10. Dynamic characteristics Table 7. Dynamic characteristics Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 9. Symbol Parameter Tamb = 25 C Conditions Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit Min Typ Max Min Max Min Max - 36 125 - 155 - 190 ns VCC = 4.
74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer Table 7. Dynamic characteristics …continued Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 9. Symbol Parameter tt transition time power dissipation capacitance CPD [1] Tamb = 25 C Conditions Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit Min Typ Max Min Max Min Max - 7 15 - 19 - 22 ns - 70 - - - - - pF [2] nY; see Figure 7 VCC = 4.
74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer 9&& 90 ( LQSXW *1' W 3+/ W 3/+ 92+ 90 Q< RXWSXW 92/ PQD Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 8. Propagation delay input (E) to output (nY) Table 8. Measurement points Type Input Output VM VM 74HC157 0.5VCC 0.5VCC 74HCT157 1.3 V 1.
74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer 9, QHJDWLYH SXOVH W: 90 90 *1' WI 9, WI SRVLWLYH SXOVH *1' WU WU 90 90 W: 9&& * 9, 92 '87 57 &/ DDK Test data is given in Table 9. Definitions test circuit: RT = Termination resistance should be equal to output impedance Zo of the pulse generator. CL = Load capacitance including jig and probe capacitance. RL = Load resistance. S1 = Test selection switch. Fig 9.
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74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer 13. Abbreviations Table 10. Abbreviations Acronym Description CMOS Complementary Metal Oxide Semiconductor DUT Device Under Test ESD ElectroStatic Discharge HBM Human Body Model MM Machine Model TTL Transistor-Transistor Logic 14. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes 74HC_HCT157 v.7 20150121 Product data sheet - 74HC_HCT157 v.
74HC157; 74HCT157 NXP Semiconductors Quad 2-input multiplexer 15. Legal information 15.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification.
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NXP Semiconductors 74HC157; 74HCT157 Quad 2-input multiplexer 17. Contents 1 2 3 4 5 5.1 5.2 6 7 8 9 10 11 12 13 14 15 15.1 15.2 15.3 15.4 16 17 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 Pinning . . . . . . . . . . . . . . .