stk14ee16 Simtek Corporation, stk14ee16 Datasheet - Page 6

• Manufacturer Part Number: stk14ee16
• Description: 512kx16 Autostore Nvsram
• Manufacturer: Simtek Corporation

Document Control #ML0069 Rev 1.0
STK14EE16
SRAM READ CYCLES #1 & #2
Note c: W must be high during SRAM READ cycles.
Note d: Device is continuously selected with E and G both low, LB and UB select bytes read.
Note e: Measured ± 200mV from steady state output voltage.
Note f:
SRAM READ CYCLE #1: Address Controlled
SRAM READ CYCLE #2: E and G Controlled
DQ (DATA OUT)
NO.
t
10
11
29
AVEL
1
2
3
4
6
6
7
8
9
22
ADDRESS
March, 2008
HSB must remain high during READ and WRITE cycles.
t
t
t
t
t
t
t
t
t
t
t
t
ELQV
AVAV
AVQV
GLQV
AXQX
ELQX
EHQZ
GLQX
GHQZ
ELICCH
EHICCL
EHAX
I cc
#1
G
E
c
d
d
e
e
b
b
Data Output
Address
SYMBOLS
t
t
t
t
t
t
t
t
t
t
t
ELQV
ELEH
AVQV
GLQV
AXQX
ELQX
EHQZ
GLQX
GHQZ
ELICCH
EHICCL
#2
c
d
d
e
e
b
b
STANDBY
t
t
t
t
t
t
t
t
t
t
t
ACS
RC
AA
OE
OH
LZ
HZ
OLZ
OHZ
PA
PS
Previous Data Valid
Alt.
t
ELICCH
t
ELQX
10
t
6
AVQV
t
GLQX
3
8
Chip Enable Access Time
Read Cycle Time
Address Access Time
Output Enable to Data Valid
Output Hold after Address Change
Address Change or Chip Enable to Output
Active
Address Change or Chip Disable to Output
Inactive
Output Enable to Output Active
Output Disable to Output Inactive
Chip Enable to Power Active
Chip Disable to Power Standby
Address Hold after End of Read
Simtek Confidential
t
GLQV
t
4
AXQX
t
t
ELEH
(6)
ELQV
ACTIVE
2
t
1
AVQV
PARAMETER
6
Address Valid
c,d,f
c,f
(3)
t
AVAV
(2)
t
Output Data Valid
EHAX
STK14EE16-25
29
MIN
25
3
3
0
0
0
DATA VALID
MAX
25
25
12
10
10
25
Preliminary
t
GHQZ
9
t
EHQZ
STK14EE16-45
MIN
7
45
3
3
0
0
0
t
EHICCL
11
MAX
45
45
20
15
15
45
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns