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74HC238

nexperia
Part Number 74HC238
Manufacturer nexperia
Description 3-to-8 line decoder/demultiplexer
Published Jul 25, 2018
Detailed Description 74HC238; 74HCT238 3-to-8 line decoder/demultiplexer Rev. 7 — 2 September 2021 Product data sheet 1. General descriptio...
Datasheet PDF File 74HC238 PDF File

74HC238
74HC238

Overview
74HC238; 74HCT238 3-to-8 line decoder/demultiplexer Rev.
7 — 2 September 2021 Product data sheet 1.
General description The 74HC238; 74HCT238 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7).
The device features three enable inputs (E1 and E2 and E3).
Every output will be LOW unless E1 and E2 are LOW and E3 is HIGH.
This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four '238 ICs and one inverter.
The '238 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes.
Inputs include clamp diodes.
This enables 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 to 6.
0 V • CMOS low power dissipation • High noise immunity • Demultiplexing capability • Multiple input enable for easy expansion • Ideal for memory chip select decoding • Active HIGH mutually exclusive outputs • Input levels: • For 74HC238: CMOS level • For 74HCT238: TTL level • Complies with JEDEC standards • JESD8C (2.
7 V to 3.
6 V) • JESD7A (2.
0 V to 6.
0 V) • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B • ESD protection: • HBM JESD22-A114F exceeds 2000 V • MM JESD22-A115-A exceeds 200 V • Multiple package options • 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 74HC238D -40 °C to +125 °C SO16 74HCT238D 74HC238PW -40 °C to +125 °C TSSOP16 74HCT238PW 74HC238BQ -40 °C to +125 °C DHVQFN16 74HCT238BQ 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 plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.
5 × 3.
5 × 0.
85 mm Version ...


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