Texas Instruments 99/4A - Page 127

M11S DYNAMIC RAM
- 16, 38M X 1 ORGANIZATION
- 3 STATE OUTPUTS
AO - A6 - ADDRESS INPUTS
CAS - COLUMN ADDRESS STROBE
D - DATA INPUT
Q - DATA OUTPUT
RAS - ROW ADDRESS STROBE
W - WRITE ENABLE
- REFRESH MUST BE PERFORMED EVERY 2 MILLISECONDS
- RAS LATCHES THE ROW ADDRESS (AO - AS)
- CAS LATCHES THE COLUMN ADDRESS (AU - Au)
RAS
AO Al
A2
A3
A4
A5 A6 AU
Al A2
A3
A4
A5 A6
8192 4096
2048
1024
512 256 128
34
32 IS 8
4
2 1
CAS
117
RAG 06-03-82