74F157A Datasheet | NXP Semiconductors

DESCRIPTION The 74F157A is a high speed Quad 2-Input Multiplexer which selects 4 bits of data from one of two sources under the control of a mon Select input (S). The Enable input (E) is active when Low. When E is High, all of the outputs (Yn) are forced Low regardless of all other input conditions. Moving data from two registers to a mon output bus is a mon use of the 74F157A. The state of the Select input determines the particular register from which the data es. The device 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 Select input. The 74F158A is similar, but has inverting outputs (Yn). 74F157A, 74F158A Quad 2-input data selector/multiplexer, non-inverting Quad 2-input data selector/multiplexer, inverting - Industrial temperature range (- 10°C to +85°C) available for 74F157A TYPICAL PROPAGATION DELAY 4.6ns 4.6ns 3.7ns 3.7ns TYPICAL SUPPLY CURRENT (TOTAL) 15m A 15m A 10m A 10m A TYPE 74F157 74F157A 74F158 74F158A ORDERING INFORMATION ORDER CODE DESCRIPTION 16-pin plastic DIP 16-pin plastic SO MERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C N74F157AN, N174F158AN N74F157AD, N74F158AD INDUSTRIAL RANGE VCC = 5V ±10%, Tamb = - 40°C to +85°C I74F157AN I74F157AD PKG. DWG. # SOT38-4 SOT109-1 INPUT AND OUTPUT LOADING AND FAN OUT TABLE PINS Ina, Inb, Inc, Ind S E Ya- Yd Ya- Yd Data inputs Select input Enable input Data outputs (74F157/74F157A) Data outputs (74F158/74F158A) DESCRIPTION 74F (U.L.) HIGH/LOW 1.0/1.0 1.0/1.0 1.0/1.0 50/33 50/33 LOAD VALUE HIGH/LOW 20µA/0.6m A 20µA/0.6m A 20µA/0.6m A 1.0m A/20m A 1.0m A/20m A NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6m A in the Low state. PIN CONFIGURATIONS, 74F157A S I0a I1a Ya I0b I1b Yb GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC E I0d I1d Yd I0c I1c Yc S I0a I1a Ya I0b I1b Yb GND 74F158A 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC E I0d I1d Yd I0c I1c Yc SF00215 SF00216 LOGIC SYMBOLS, 74F157A 2 3 5...