STK14EC8-BF15 SIMTEK [Simtek Corporation], STK14EC8-BF15 Datasheet - Page 6

• Manufacturer Part Number: STK14EC8-BF15
• Description: 512Kx8 Autostore nvSRAM
• Manufacturer: SIMTEK [Simtek Corporation]

STK14EC8
Document Control #ML0060 Rev 1.1
SRAM WRITE CYCLES #1 & #2
Note g: If W is low when E goes low, the outputs remain in the high-impedance state.
Note h: E or W must be ≥ V
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
Jan, 2008
DATA IN
t
WLQZ
t
t
t
t
t
t
t
t
t
WHQX
WLWH
DVWH
WHDX
AVWH
WHAX
ELWH
AVWL
AVAV
#1
W
E
W
e, g
E
SYMBOLS
t
t
t
t
t
t
t
t
WLEH
ELEH
DVEH
EHDX
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
Simtek Confidential
PARAMETER
AVWH
17
t
WLWH
t
13
ELWH
14
g,h
g,h
t
t
AVAV
ELEH
t
12
WLEH
14
6
t
13
AVAV
HIGH IMPEDANCE
12
HIGH IMPEDANCE
t
DVEH
t
15
DVWH
15
STK14EC8-15
MIN
15
10
15
10
5
0
0
0
3
DATA VALID
DATA VALID
MAX
7
Preliminary
STK14EC8-25
MIN
25
20
20
10
20
0
0
0
3
t
t
WHDX
WHAX
t
16
EHDX
19
t
16
EHAX
19
MAX
10
t
WHQX
21
STK14EC8-45
MIN
45
30
30
15
30
0
0
0
3
MAX
15
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns