Datasheet

SN74S225
16 × 5 ASYNCHRONOUS FIRST-IN, FIRST-OUT MEMORY
WITH 3-STATE OUTPUTS
SDLS207B – SEPTEMBER 1976 – REVISED APRIL 1998
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
CLR
CLKA
CLKB
D
Word 1 Word 2 Word 16
UNCK
IN
IR
UNCK
OUT
OR
Q
Word 3
is Low
Word 1 Word 1 Word 2 Word 3 Word
16
Load
Words 3–15
Unload
Word 16
Outputs Inputs
Clear Load
Word 1
Load
Word 2
Load
Word 16
Unload
Word 2
Unload
Word 1
Unload
Words 3–15
Figure 2. Typical Waveforms for a 16-Word FIFO