5
V53C808H Rev. 1.5 April 1998
MOSEL VITELIC
V53C808H
AC Characteristics
TA = 0°C to 70°C, VCC = 5 V ±10%, VSS = 0V unless otherwise noted
AC Test conditions, input pulse levels 0 to 3V
# Symbol Parameter
35 40 45 50
Unit NotesMin. Max. Min. Max. Min. Max. Min. Max.
1t
RAS
RAS Pulse Width 35 75K 40 75K 45 75K 50 75K ns
2t
RC
Read or Write Cycle Time 70 75 80 90 ns
3t
RP
RAS Precharge Time 25 25 25 30 ns
4t
CSH
CAS Hold Time 35 40 45 50 ns
5t
CAS
CAS Pulse Width 7899ns
6t
RCD
RAS to CAS Delay 16 23 17 28 18 32 19 36 ns
7t
RCS
Read Command Setup Time 0000ns4
8t
ASR
Row Address Setup Time 0000ns
9t
RAH
Row Address Hold Time 6789ns
10 t
ASC
Column Address Setup Time 0000ns
11 t
CAH
Column Address Hold Time 4567ns
12 t
RSH (R)
RAS Hold Time (Read Cycle) 14 14 15 15 ns
13 t
CRP
CAS to RAS Precharge Time 5555ns
14 t
RCH
Read Command Hold Time
Referenced to CAS
0000ns5
15 t
RRH
Read Command Hold Time
Referenced to RAS
0000ns5
16 t
ROH
RAS Hold Time Referenced to OE 8 8 9 10 ns
17 t
OAC
Access Time from OE 12 12 13 14 ns
18 t
CAC
Access Time from CAS (EDO) 12 12 13 14 ns 6, 7
19 t
RAC
Access Time from RAS 35 40 45 50 ns 6, 8, 9
20 t
CAA
Access Time from Column Address 18 20 22 24 ns 6, 7, 10
21 t
LZ
CAS to Low-Z Output 0000ns16
22 t
HZ
Output buffer turn-off delay time 06060708ns 16
23 t
AR
Column Address Hold Time from RAS 28 30 35 40 ns
24 t
RAD
RAS to Column Address Delay Time 11 17 12 20 13 23 14 26 ns 11
25 t
RSH (W)
RAS or CAS Hold Time in Write Cycle 12 12 13 14 ns
26 t
CWL
Write Command to CAS Lead Time 12 12 13 14 ns
27 t
WCS
Write Command Setup Time 0000ns12, 13
28 t
WCH
Write Command Hold Time 5567ns
29 t
WP
Write Pulse Width 5567ns
30 t
WCR
Write Command Hold Time from RAS 28 30 35 40 ns
31 t
RWL
Write Command to RAS Lead Time 12 12 13 14 ns