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See Technical Specifications

5962-8970501EA

Multiplexer 1-Element CMOS 3-ST 8-IN 16-Pin CDIP Tube

Manufacturer:

Texas Instruments
Mfr.Part #:

5962-8970501EA
Datasheet:

5962-8970501EA Datasheet (PDF)
Series:

*
Base Product Number:

5962-8970501
EDA/CAD Models:

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5962-8970501EA General Description

The HC257 and HCT257 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select Input (S). The Output Enable input (OE\) is active LOW. When OE\ is HIGH, all of the outputs (1Y-4Y) are in the high impedance state regardless of all other input conditions.

Moving data from two groups of registers to four common output buses is a common use of the 257. The state of the Select input determines the particular register from which the data comes. It can also be used as a function generator.

Key Features

Buffered Inputs
Typical Propagation Delay (In to Output) = 12ns at V_CC = 5V, C_L = 15pF, T_A = 25°C
Fanout (Over Temperature Range)
- Standard Outputs.10 LSTTL Loads
- Bus Driver Outputs.15 LSTTL Loads
Wide Operating Temperature Range.–55°C to 125°C
Balanced Propagation Delay and Transition Times
Significant Power Reduction Compared to LSTTL Logic ICs
HC Types
- 2V to 6V Operation
- High Noise Immunity: N_IL = 30%, N_IH = 30% of V_CC at V_CC = 5V
HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, V_IL = 0.8V (Max), V_IH = 2V (Min)
- CMOS Input Compatibility, I_l 1µA at V_OL, V_OH