Preliminary
STK14EC8
AutoStore™/POWER-UP RECALL
SYMBOLS
NO.
STK14EC8
PARAMETER
UNITS NOTES
Standard
tHRECALL
tSTORE
Alternate
MIN
MAX
20
22
23
24
25
Power-up RECALL Duration
STORE Cycle Duration
Low Voltage Trigger Level
VCC Rise Time
ms
ms
V
i
j
tHLHZ
12.5
2.65
VSWITCH
VCCRISE
150
μs
Note i: tHRECALL starts from the time VCC rises above VSWITCH
Note j: If an SRAM WRITE has not taken place since the last nonvolatile cycle, no STORE will take place
AutoStore™/POWER-UP RECALL
STORE occurs only if a
SRAM write has
happened.
No STORE occurs
without at least one
SRAM write.
VCC
24
VSWITCH
25
tVCCRISE
AutoStoreTM
23
tSTORE
23
tSTORE
POWER-UP RECALL
22
tHRECALL
22
tHRECALL
Read & Write Inhibited
POWER DOWN
BROWN OUT
POWER-UP
RECALL
POWER-UP
RECALL
AutoStoreTM
AutoStoreTM
Note: Read and Write cycles will be ignored during STORE, RECALL and while VCC is below VSWITCH
Rev 1.1
Document Control #ML0060
Jan, 2008
7
Simtek Confidential
SIMTEK [ SIMTEK CORPORATION ]
