93AA86A MICROCHIP [Microchip Technology], 93AA86A Datasheet - Page 10

• Manufacturer Part Number: 93AA86A
• Description: 16K Microwire Compatible Serial EEPROM
• Manufacturer: MICROCHIP [Microchip Technology]

93AA86A/B/C, 93LC86A/B/C, 93C86A/B/C
2.8
The WRITE instruction is followed by 8 bits (If ORG is
low or A-version devices) or 16 bits (If ORG pin is high
or B-version devices) of data which are written into the
specified address. The self-timed auto-erase and
programming cycle is initiated by the rising edge of CLK
on the last data bit.
FIGURE 2-6:
DS21797G-page 10
CLK
DO
CS
DI
Write
1
High-Z
WRITE TIMING
0
1
An
•••
A0
Dx
•••
The DO pin indicates the Ready/Busy status of the
device, if CS is brought high after a minimum of 250 ns
low (T
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.
D0
Note:
Note:
CSL
T
CSL
). DO at logical ‘0’ indicates that programming
T
The write sequence requires a logic high
signal on the PE pin prior to the rising
edge of the last data bit.
After the Write cycle is complete, issuing a
Start bit and then taking CS low will clear
the Ready/Busy status from DO
WC
Busy
T
SV
© 2005 Microchip Technology Inc.
Ready
High-Z
T
CZ