93AA46AE48 Datasheet, PDF (9/26 Pages) Microchip Technology – 1K Microwire Serial EEPROM with EUI-48™ Node Identity

FIGURE 2-5:
CS
READ TIMING
93AA46AE48
CLK
DI
DO
1
1
0
AN ••• A0
High Z
0 Dx ••• D0 Dx ••• D0 Dx ••• D0
2.8 Write
The WRITE instruction is followed by eight bits of data,
which are written into the specified address. For
93AA46AE48, after the last data bit is clocked into DI,
the falling edge of CS initiates the self-timed auto-erase
and programming 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 written with
the data specified and the device is ready for another
instruction.
Note:
After the Write cycle is complete, issuing a
Start bit and then taking CS low will clear
the Ready/Busy status from DO.
FIGURE 2-6:
WRITE TIMING
TCSL
CS
CLK
DI
1
0
1 AN ••• A0 Dx ••• D0
TSV
TCZ
DO
High Z
Busy
Ready
High Z
TWC
 2013-2016 Microchip Technology Inc.
DS20005229C-page 9