STK11C68-M
Internally, RECALL is a two step procedure. First, the
once it has risen above it in order for the RECALL to
SRAM data is cleared and second, the nonvolatile operate properly. Due to this automatic RECALL,
information is transferred into the SRAM cells. The SRAM operation cannot commence until tRECALL after
RECALL operation in no way alters the data in the VCC exceeds 4.0V. 4.0V is a typical, characterized
EEPROM cells. The nonvolatile data can be recalled value.
an unlimited number of times.
If the STK11C68-M is in a WRITE state at the end of
On power-up, once VCC exceeds the VCC sense volt- power-up RECALL, the SRAM data will be corrupted.
age of 4.0V, a RECALL cycle is automatically initiated. To help avoid this situation, a 10K Ohm resistor should
The voltage on the VCC pin must not drop below 4.0V be connected between W and system VCC
.
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SIMTEK [ SIMTEK CORPORATION ]
