1. General description
The 74HC237-Q100 is a 3-to-8 line decoder, demultiplexer with latches at the three
address inputs (An). The 74HC237-Q100 essentially combines the 3-to-8 decoder
function with a 3-bit storage latch. When the latch is enabled (LE
= LOW), the
74HC237-Q100 acts as a 3-to-8 active LOW decoder. When the latch enable (LE
) goes
from LOW-to-HIGH, the last data present at the inputs before this transition, is stored in
the latches. Further address changes are ignored as long as LE
remains HIGH. The
output enable input (E
1 and E2) controls the state of the outputs independent of the
address inputs or latch operation. All outputs are HIGH unless E
1 is LOW and E2 is HIGH.
The 74HC237-Q100 is ideally suited for implementing non-overlapping decoders in
3-state systems and strobed (stored address) applications in bus-oriented systems.
This product has been qualified to the Automotive Electronics Council (AEC) standard
Q100 (Grade 1) and is suitable for use in automotive applications.
2. Features and benefits
Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Specified from 40 C to +85 C and from 40 C to +125 C
Combines 3-to-8 decoder with 3-bit latch
Multiple input enable for easy expansion or independent controls
Active HIGH mutually exclusive outputs
Low-power dissipation
Complies with JEDEC standard no. 7A
ESD protection:
MIL-STD-883, method 3015 exceeds 2000 V
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 )
3. Ordering information
74HC237-Q100
3-to-8 line decoder, demultiplexer with address latches
Rev. 1 — 14 January 2013 Product data sheet
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74HC237D-Q100 40 C to +125 C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1
