SM55161A Datasheet, PDF (30/64 Pages) Austin Semiconductor – 262144 x 16 BIT VRAM MULTIPORT VIDEO RAM

Austin Semiconductor, Inc.
VRAM
SM55161A
Production
SAM TO DRAM WRITE TRANSFER & SERIAL IN TIMINGS
PARAMETER
SYMBOL -70
-75
-80
Last SC to RAS\ set-up time (serial input)
t_SRS
25
25
25
RAS\ to serial input delay time
t_SDD
35
40
45
Serial input set-up time
t_SDS
0
0
0
Serial input hold time
t_SDH
0
0
0
Serial input to SE\ delay time
t_SZE
0
0
0
Serial input to first SC delay time
t_SZS
0
0
0
Serial write enable to set-up time
t_SWS
0
0
0
Serial write enable to hold time
t_SWH
10
12
12
Serial write disable to set-up time
t_SWiS
0
0
0
Serial write disable to hold time
t_SWiH
10
12
12
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SMJ55161A
Rev. 1.6 03/05
30
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