cat1021li-45t3 Catalyst Semiconductor, cat1021li-45t3 Datasheet - Page 11

• Manufacturer Part Number: cat1021li-45t3
• Description: Voltage Supervisor With I?c Serial 2k-bit Cmos Eeprom, Manual Reset And Watchdog Timer
• Manufacturer: Catalyst Semiconductor

Page Write
The CAT1021/22/23 writes up to 16 bytes of data in
a single write cycle, using the Page Write operation.
The page write operation is initiated in the same
manner as the byte write operation, however instead
of terminating after the initial byte is transmitted, the
Master is allowed to send up to 15 additional bytes.
After
CAT1021/22/23 will respond with an acknowledge
and internally increment the lower order address bits
by one. The high order bits remain unchanged.
Figure 8. Byte Write Timing
Figure 9: Page Write Timing
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
each
BUS ACTIVITY:
SDA LINE
MASTER
byte
has
S
BUS ACTIVITY:
R
S
T
A
T
been
SDA LINE
ADDRESS
MASTER
SLAVE
transmitted,
S
S
T
A
R
T
A
C
K
ADDRESS (n)
ADDRESS
SLAVE
BYTE
the
A
C
K
A
C
K
11
If the Master transmits more than 16 bytes before
sending the STOP condition, the address counter
‘wraps around,’ and previously transmitted data will be
overwritten.
When all 16 bytes are received, and the STOP condition
has been sent by the Master, the internal programming
cycle begins. At this point, all received data is written to
the CAT1021/22/23 in a single write cycle.
ADDRESS
BYTE
DATA n
A
C
K
C
A
K
DATA n+1
DATA
CAT1021, CAT1022, CAT1023
A
C
K
A
C
K
P
O
S
T
P
DATA n+15
Doc. No. MD-3009 Rev. M
A
C
K
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