STK14C88-M Simtek, STK14C88-M Datasheet - Page 4

• Manufacturer Part Number: STK14C88-M
• Description: 32K x 8 AUTOSTORE nvSRAM QUANTUM TRAP CMOS NONVOLATILE STATIC RAM
• Manufacturer: Simtek

STK14C88-M
April 1999
SRAM WRITE CYCLES #1 & #2
Note j:
Note k: E or W must be
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
ADDRESS
DATA OUT
DATA IN
DATA IN
If W is low when E goes low, the outputs remain in the high-impedance state.
HSB must be high during SRAM WRITE cycles.
t
WLQZ
t
t
t
t
t
t
t
t
t
WLWH
DVWH
WHDX
AVWH
WHAX
WHQX
ELWH
AVWL
AVAV
W
#1
E
W
E
i, j
SYMBOLS
t
t
t
t
t
t
t
t
WLEH
ELEH
DVEH
EHDX
AVEH
EHAX
t
AVAV
AVEL
AVWL
#2
V
18
IH
during address transitions.
t
AVEL
18
PREVIOUS DATA
Alt.
t
t
t
t
t
t
t
t
t
t
WC
WP
CW
DW
AW
WR
WZ
OW
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
PARAMETER
t
ELWH
14
k, l
k, l
t
AVAV
t
ELEH
t
12
WLEH
5-46
14
t
13
AVAV
HIGH IMPEDANCE
12
HIGH IMPEDANCE
t
DVEH
t
DVWH
15
15
DATA VALID
DATA VALID
MIN
STK14C88-35M
35
25
25
12
25
0
0
0
5
MAX
13
t
t
WHDX
WHAX
t
16
EHDX
19
t
EHAX
16
19
(V
t
WHQX
21
CC
MIN
STK14C88-45M
45
30
30
15
30
0
0
0
5
= 5.0V
MAX
15
10%)
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
e