STK14C88-3 Simtek, STK14C88-3 Datasheet - Page 6

• Manufacturer Part Number: STK14C88-3
• Description: 32Kx8 AutoStore nvSRAM
• Manufacturer: Simtek

STK14C88-3
Document Control #ML0015 Rev 0.6
SRAM WRITE CYCLES #1 & #2
Note j:
Note k: E or W must be ≥ V
Note l:
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
DATA IN
February 2007
DATA IN
t
W is low when E goes low, the outputs remain in the high-impedance state.
HSB must be high during SRAM WRITE cycles.
WLQZ
t
t
t
t
t
t
t
t
t
WLWH
DVWH
WHDX
AVWH
WHAX
WHQX
ELWH
AVWL
AVAV
#1
W
E
W
E
i, j
SYMBOLS
t
t
t
t
t
t
t
t
WLEH
DVEH
EHDX
ELEH
AVEH
EHAX
AVAV
AVEL
#2
t
AVWL
18
IH
during address transitions.
t
AVEL
18
PREVIOUS DATA
Alt.
t
t
t
t
t
t
t
t
t
t
WC
CW
DW
WR
OW
WP
DH
AW
WZ
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
AVEH
20
17
t
AVWH
17
t
PARAMETER
WLWH
t
13
ELWH
14
k, l
k, l
t
t
AVAV
ELEH
t
12
14
WLEH
13
t
6
AVAV
HIGH IMPEDANCE
12
HIGH IMPEDANCE
t
DVEH
t
15
DVWH
15
DATA VALID
DATA VALID
STK14C88-3-
MIN
35
25
25
12
25
0
0
0
5
35
MAX
13
t
t
WHDX
WHAX
t
16
19
EHDX
STK14C88-3-
t
16
MIN
EHAX
45
30
30
15
30
19
0
0
0
5
t
45
WHQX
21
(V
MAX
15
CC
UNITS
= 3V - 3.6V)
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
e