STK14EC8-BF15 SIMTEK [Simtek Corporation], STK14EC8-BF15 Datasheet - Page 14

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

STK14EC8
Document Control #ML0060 Rev 1.1
Jan, 2008
Figure 4 - Current vs Cycle Time
Simtek Confidential
14
PREVENTING AUTOSTORE
The AutoStore function can be disabled by initiating
an AutoStore Disable sequence. A sequence of
READ operations is performed in a manner similar
to the software STORE initiation. To initiate the
AutoStore
sequence of E controlled or G controlled READ
operations must be performed:
The AutoStore can be re-enabled by initiating an
AutoStore Enable sequence. A sequence of READ
operations is performed in a manner similar to the
software
AutoStore
sequence of E controlled or G controlled READ
operations must be performed:
If the AutoStore function is disabled or re-enabled,
a manual STORE operation (Hardware or Soft-
ware) needs to be issued to save the AutoStore
state through subsequent power down cycles. The
part comes from the factory with AutoStore
enabled, but best design practice is to set the
enable or disable state during each power-up
sequence and not depend on this factory default
condition. Simtek recommends users configure the
part completely for the specific application.
1 Read Address
2 Read Address
3 Read Address
4 Read Address
5 Read Address
6 Read Address
1 Read Address
2 Read Address
3 Read Address
4 Read Address
5 Read Address
6 Read Address
RECALL
Disable
Enable
Preliminary
0x4E38
0xB1C7 Valid READ
0x83E0
0x7C1F Valid READ
0x703F
0x8B45
0x4E38
0xB1C7 Valid READ
0x83E0
0x7C1F Valid READ
0x703F
0x4B46
initiation.
sequence,
sequence,
Valid READ
Valid READ
Valid READ
AutoStore Disable
Valid READ
Valid READ
Valid READ
AutoStore Enable
To
the
the
initiate
following
following
the