93AA76A Datasheet, PDF (6/26 Pages) Microchip Technology – 8K Microwire Compatible Serial EEPROM

93AA76A/B/C, 93LC76A/B/C, 93C76A/B/C
2.4 ERASE
The ERASE instruction forces all data bits of the
specified address to the logical ‘1’ state. The rising
edge of CLK before the last address bit initiates the
write cycle.
The DO pin indicates the READY/BUSY status of the
device if CS is brought high after a minimum of 250 ns
low (TCSL). DO at logical ‘0’ indicates that programming
is still in progress. DO at logical ‘1’ indicates that the
register at the specified address has been erased and
the device is ready for another instruction.
Note:
Issuing a Start bit and then taking CS low
will clear the READY/BUSY status from
DO.
FIGURE 2-1:
CS
ERASE TIMING
CLK
TCSL
CHECK STATUS
DI
1
1
1
AN AN-1 AN-2 •••
A0
HIGH-Z
DO
TSV
BUSY
TWC
TCZ
READY
HIGH-Z
DS21796D-page 6
 2004 Microchip Technology Inc.