stk16c88-45i Simtek Corporation, stk16c88-45i Datasheet - Page 5

• Manufacturer Part Number: stk16c88-45i
• Description: 32kx8 Autostore+ Nvsram
• Manufacturer: Simtek Corporation

Document Control #ML0018 Rev 2.0
SRAM WRITE CYCLES #1 & #2
Note i:
Note j:
SRAM WRITE CYCLE #1: W Controlled
SRAM WRITE CYCLE #2: E Controlled
NO.
12
13
14
15
16
17
18
19
20
21
ADDRESS
DATA OUT
DATA OUT
ADDRESS
DATA IN
Jan, 2008
DATA IN
t
WLQZ
If W is low when E goes low, the outputs remain in the high-impedance state.
E or W must be ≥ V
t
t
t
t
t
t
t
t
t
WLWH
DVWH
WHDX
WHAX
WHQX
ELWH
AVWH
AVWL
AVAV
#1
W
W
E
E
h, i
SYMBOLS
t
t
t
t
t
t
t
t
WLEH
DVEH
EHDX
EHAX
ELEH
AVEH
AVAV
AVEL
#2
IH
t
AVWL
18
during address transitions.
t
AVEL
18
t
t
t
t
t
Alt.
t
t
t
t
t
PREVIOUS DATA
OW
WC
WP
CW
DW
AW
WR
WZ
DH
AS
Write Cycle Time
Write Pulse Width
Chip Enable to End of Write
Data Set-up to End of Write
Data Hold after End of Write
Address Set-up to End of Write
Address Set-up to Start of Write
Address Hold after End of Write
Write Enable to Output Disable
Output Active after End of Write
t
WLQZ
t
20
AVEH
17
t
AVWH
17
t
WLWH
13
t
ELWH
j
14
PARAMETER
t
AVAV
12
j
t
AVAV
12
5
HIGH IMPEDANCE
t
ELEH
14
t
WLEH
13
HIGH IMPEDANCE
t
DVWH
15
t
DVEH
15
DATA VALID
DATA VALID
t
WHDX
t
STK16C88-25
16
WHAX
MIN
19
25
20
20
10
20
t
0
0
0
5
EHDX
t
EHAX
16
19
t
(V
WHQX
21
MAX
10
CC
= 5.0V
STK16C88-45
MIN
45
30
30
15
30
0
0
0
5
STK16C88
MAX
15
±
10%)
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns