T
T
T
S
S
S
2
2
2
M
M
M
3
3
3
6
6
6
6
6
6
0
0
0
G
G
G
8MB 72 PIN FAST PAGE
DRAM SIMM With 1Mx16 5VOLT
Transcend Information Inc.
AC CHARACTERISTICS
(0TA70 Vcc=5.0V10%, See notes 1, 2)
Test condition: Vih/Vil=2.4/0.8V, Voh/Vol=2.4/0.4V, output loading CL=100pF
Parameter Symbol Min Max
Unit
Note
/CAS hold time t
CSH
60 ns
/CAS pulse width t
CAS
15 10K ns
/RAS to /CAS delay time t
RCD
20 45 ns 4
/RAS to column address delay time t
RAD
15 30 ns 10
/CAS to /RAS precharge time t
CRP
5 ns
Row address set-up time t
ASR
0 ns
Row address hold time t
RAH
10 ns
Column address set-up time t
ASC
0 ns
Column address hold time t
CAH
10 ns
Column address to /RAS lead time t
RAL
30 ns
Read command set-up time t
RCS
0 ns
Read command hold referenced to /CAS t
RCH
0 ns 8
Read command hold referenced to /RAS t
RRH
0 ns 8
Write command hold time t
WCH
10 ns
Write command pulse width t
WP
10 ns
rite command to /RAS lead time t
RWL
15 ns
rite command to /CAS lead time t
CWL
15 ns
Date set-up time t
DS
0 ns 9
Date hold time t
DH
10 ns 9
Refresh period t
REF
16 ms
rite command set-up time t
WCS
0 ns 7
/CAS setup time(/CAS-before-/RAS refresh) t
CSR
5 ns
/CAS hold time (/CAS-before-/RAS refresh) t
CHR
10 ns
/RAS to /CAS precharge time t
RPC
5 ns
Access time from /CAS precharge t
CPA
35 ns 3
Fast page mode cycle time t
PC
40 ns
/CAS precharge time (Fast page cycle) t
CP
10 ns
/RAS pulse width (Fast page cycle) t
RASP
60 200K ns
/W to /RAS precharge time (C-B-R refresh) t
WRP
10 ns
/W to /RAS hold time (C-B-R refresh) t
WRH
10 ns