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74HCT251

nexperia
Part Number 74HCT251
Manufacturer nexperia
Description 8-input multiplexer
Published Jul 24, 2019
Detailed Description 74HC251; 74HCT251 8-input multiplexer; 3-state Rev. 6 — 8 February 2021 Product data sheet 1. General description The ...
Datasheet PDF File 74HCT251 PDF File

74HCT251
74HCT251


Overview
74HC251; 74HCT251 8-input multiplexer; 3-state Rev.
6 — 8 February 2021 Product data sheet 1.
General description The 74HC251; 74HCT251 is an 8-bit multiplexer with eight binary inputs (I0 to I7), three select inputs (S0 to S2) and an output enable input (OE).
The select inputs select one of the eight binary inputs and route it to the complementary outputs (Y and Y).
A HIGH on OE causes the outputs to assume a high-impedance OFF-state.
Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
2.
Features and benefits • Wide supply voltage range from 2.
0 V to 6.
0 V • CMOS low power dissipation • High noise immunity • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B • Complies with JEDEC standards: • JESD8C (2.
7 V to 3.
6 V) • JESD7A (2.
0 V to 6.
0 V) • Input levels: • For 74HC251: CMOS level • For 74HCT251: TTL level • Non-inverting data path • ESD protection: • • HBM JESD22-A114F exceeds 2000 V • MM JESD22-A115-A exceeds 200 V • Specified from -40 °C to +85 °C and from -40 °C to +125 °C 3.
Ordering information Table 1.
Ordering information Type number Package Temperature range Name 74HC251D -40 °C to +125 °C SO16 74HCT251D 74HC251PW -40 °C to +125 °C TSSOP16 74HCT251PW Description plastic small outline package; 16 leads; body width 3.
9 mm plastic thin shrink small outline package; 16 leads; body width 4.
4 mm Version SOT109-1 SOT403-1 Nexperia 4.
Functional diagram 4 3 2 1 15 14 13 12 I0 I1 I2 I3 I4 I5 I6 I7 7 OE Y5 Y6 S0 S1 S2 11 10 Fig.
1.
Logic symbol I7 9 aaa-008235 I6 I5 I4 I3 I2 I1 I0 74HC251; 74HCT251 8-input multiplexer; 3-state 4 3 2 1 15 14 13 12 I0 I1 I2 I3 I4 I5 I6 I7 11 S0 10 S1 9 S2 7 OE MULTIPLEXER Y 5 Fig.
2.
Functional diagram Y 6 aaa-008236 Y Y Fig.
3.
Logic diagram S2 S1 S0 OE aaa-008237 74HC_HCT251 Product data sheet All information provided in this document is subject to legal disclaimers.
Rev.
6 — 8 Febru...


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