stk14ee16 Simtek Corporation, stk14ee16 Datasheet - Page 8

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

Document Control #ML0069 Rev 1.0
STK14EE16
SRAM WRITE CYCLE #3: LB, UB Controlled
AutoStore™/POWER-UP RECALL
Note i:
Note j:
AutoStore™/POWER-UP RECALL
NO.
26
27
28
29
March, 2008
Read & Write
t
If an SRAM WRITE has not taken place since the last nonvolatile cycle, no STORE will take place
HRECALL
POWER-UP
Note: Read and Write cycles will be ignored during STORE, RECALL and while V
** AutoStore occures only if at least one SRAM Write has happened
AutoStore
Inhibited
RECALL
Standard
t
t
V
V
HRECALL
STORE
V
SWITCH
CCRISE
Data Output
SWITCH
(28)
Data Input
LB , UB
starts from the time V
Address
V
SYMBOLS
CC
POWER-UP
W
E
RECALL
Alternate
t
HLHZ
t
VCCRISE
CC
Read & Write
t
t
AVBL
HRECALL
rises above V
(29)
t
AVBH
Power-up RECALL Duration
STORE Cycle Duration
Low Voltage Trigger Level
V
CC
(22)
(21)
Rise Time
(26)
Address Valid
SWITCH
Simtek Confidential
t
t
t
WLBH
t
ELBH
BLBH
BROWN OUT
High Impedance
AVAV
AutoStore
**
t
(16)
(18)
(17)
DVBH
(15)
(19)
Input Data Valid
t
STORE
8
PARAMETER
t
BHAX
t
BHDX
(27)
POWER-UP
g,h
(23)
RECALL
(20)
t
HRECALL
Read & Write
(26)
POWER DOWN
Preliminary
CC
AutoStore
MIN
150
**
STK14EE16
is below V
t
MAX
STORE
12.5
2.65
20
(27)
SWITCH
UNITS
ms
ms
μs
V
NOTES
i
j