SN74ACT3638_05 Datasheet, PDF (4/33 Pages) Texas Instruments – 512 × 32 × 2 CLOCKED BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY

SN74ACT3638
512 × 32 × 2
CLOCKED BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY
SCAS228D – JUNE 1992 – REVISED APRIL 1998
functional block diagram
CLKA
CSA
W/RA
ENA
MBA
RST1
Port-A
Control
Logic
FIFO1,
Mail1
Reset
Logic
Mail1
Register
512 × 32
SRAM
IRA
AFA
FS0
FS1
A0 – A31
RDYA
ORA
AEA
MBF2
Write
Pointer
Read
Pointer
FIFO1
9
Status-Flag
Logic
Programmable-
Flag
Offset Registers
FIFO2
Status-Flag
Logic
Read
Pointer
Write
Pointer
512 × 32
SRAM
Mail2
Register
MBF1
32
RTM
RFM
ORB
AEB
RDYB
B0 – B31
IRB
AFB
32
FIFO2,
Mail2
Reset
Logic
Port-B
Control
Logic
RST2
CLKB
CSB
W/RB
ENB
MBB
4
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