SN74AHC238 3- to 8-Line Noninverting Decoder/Demultiplexer

1 Features

Operating range 2V to 5.5V V_CC
Low delay, 10.5ns maximum (V_CC = 5V, C_L = 50pF)
Latch-up performance exceeds 250mA
per JESD 17

2 Applications

Memory device selection with shared data bus
Reduce required number of outputs for chip select applications
Route data

3 Description

The SN74AHC238 is a three to eight decoder with one standard output strobe (G2) and two active low output strobes (G₁ and G₀). When the outputs are gated by any of the strobe inputs, they are all forced into the low state. When the outputs are not disabled by the strobe inputs, only the selected output is high while all others are low.

Package Information

PART NUMBER	PACKAGE⁽¹⁾	PACKAGE SIZE⁽²⁾	BODY SIZE (NOM)⁽³⁾
SN74AHC238	BQB (WQFN, 16)	3.5mm × 2.5mm	3.5mm × 2.5mm
SN74AHC238	PW (TSSOP, 16)	5mm × 6.4mm	5mm × 4.4mm

(1) For more information, see Section 11.

(2) The package size (length × width) is a nominal value and includes pins, where applicable

(3) The body size (length × width) is a nominal value and does not include pins.

Logic Diagram (Positive Logic)