X40420 XICOR [Xicor Inc.], X40420 Datasheet - Page 19

• Manufacturer Part Number: X40420
• Description: Dual Voltage Monitor with Integrated CPU Supervisor and System Battery Switch
• Manufacturer: XICOR [Xicor Inc.]

X40420/X40421 – Preliminary
WP Pin Timing
Write Cycle Timing
Nonvolatile Write Cycle Timing
Note: (1) t
Power Fail Timings
REV 1.2.14 7/12/02
Symbol
t
WC
SDA
SCL
LOWLINE or
It is the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.
(1)
WC
V2MON
V2FAIL
X = 1, 2
is the time from a valid stop condition at the end of a write sequence to the end of the self-timed internal nonvolatile write cycle.
V
V
TRIPX
CC
SDA IN
or
SCL
WP
8
th
Bit of Last Byte
START
t
R
t
Write Cycle Time
SU:WP
Parameter
t
t
RPDL
RPDX
V
RVALID
Clk 1
ACK
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Slave Address Byte
t
t
RPDL
RPDX
Condition
Stop
Min.
t
Clk 9
HD:WP
t
Characteristics subject to change without notice.
WC
Typ.
t
5
t
RPDL
RPDX
(1)
Condition
Start
Max.
10
t
F
Unit
ms
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