TE
tmCH
T2316162A
AC ELECTRICAL CHARACTERISTICS (continued)
AC CHARACTERISTICS
-45
-50
-60
SYM
UNIT Notes
PARAMETER
MIN MAX MIN MAX MIN MAX
Read Command Setup Time
t
t
0
0
0
0
0
0
ns 15,18
ns 9,15,19
RCS
RCH
CAS
RAS
Read Command Hold Time Reference to
Read Command Hold Time Reference to
CAS to Output in Low-Z
t
t
t
0
3
3
0
3
3
0
3
3
ns
9
RRH
CLZ
ns 20
15
8
15
8
15
15
ns 10,17,
20
CAS
Output Buffer Turn-off Delay From
RAS
or OFF1
t
t
ns 17,28
Output Buffer Turn-off to OE
Write Command Setup Time
OFF2
WCS
0
0
0
ns 11,15,1
8
Write Command Hold Time
Write Command Hold Time (Reference to
t
t
6
35
8
38
10
45
ns 15,27
ns 15
WCH
WCR
RAS
)
Write Command Pulse Width
t
t
6
9
8
9
15
10
ns 15
ns 15
WP
RWL
RAS
CAS
Write Command to
Lead Time
Lead Time
t
8
8
10
ns 15,19
Write Command to
Data-in Setup Time
Data-in Hold Time
CWL
t
t
t
0
6
35
0
8
38
0
10
45
ns 12,20
ns 12,20
ns
DS
DH
DHR
RAS
Data-in Hold Time (Reference to
RAS WE
)
t
t
t
61
35
27
2.5
64
39
27
2.5
85
55
40
2.5
ns 11
to
Column Address to
CAS WE
Delay Time
RWD
AWD
CWD
ns 11
WE
Delay Time
Delay Time
ns 11,18
to
Transition Time (rise or fall)
Refresh Period (1024 cycles)
t
t
t
50
16
50
16
50
16
ns 2,3
ms
ns
T
REF
RPC
10
10
10
6
10
10
10
10
10
10
10
15
RAS
CAS
Precharge Time
to
CAS Setup Time (CBR REFRESH)
CAS
t
t
t
ns 1,18
ns 1,19
ns 16
CSR
CHR
OEH
Hold Time (CBR REFRESH)
OE
WE
During Read-
Hold Time From
Modify-Write Cycle
t
t
t
t
5
3
2
0
5
5
5
0
5
10
10
0
ns
ns
ns
ns
OE
OE
OE
OE
CAS
High Setup Time
Low to
OES
CAS
High Hold Time From
High Pulse Width
High
OEHC
OEP
CAS
Setup Prior to
During Hidden
ORD
Refresh Cycle
t
6
10
10
ns 21
CAS
CAS
Last
Going Low to First
CLCH
Returning High
Data Output Hold After CAS Returning Low
WE
t
t
4
3
5
3
5
3
ns
ns
COH
WHZ
7
10
15
Output Disable Delay From
TM Technology Inc. reserves the right
to change products or specifications without notice.
P. 5
Publication Date:APR. 2002
Revision:E
TMT [ TAIWAN MEMORY TECHNOLOGY ]
