x40626 Intersil Corporation, x40626 Datasheet - Page 4

• Manufacturer Part Number: x40626
• Description: Dual Voltage Cpu Supervisor With 64k Serial Eeprom
• Manufacturer: Intersil Corporation

X40626
To set the new V
bit in the control register, then apply the desired V
threshold voltage to the V
voltage, V
byte of “00” data. The stop bit following a valid write
operation initiates the V
Bring WP LOW to complete the operation.
Resetting the V
This procedure is used to set the V
voltage level. For example, if the current V
and the new V
be reset. When V
thing less than 1.7V. This procedure must be used to
set the voltage to a lower value.
Figure 2. Reset V
Figure 3. Sample V
REV 1.1.15 2/11/04
SCL
SDA
WP
V
Adj.
TRIP
P
, to the WP pin and 2 byte address and 1
0 1 2 3 4 5 6 7
TRIP
TRIP
TRIP
TRIP
TRIP
must be 4.0V, then the V
A0H
TRIP
Voltage
voltage, start by setting the WEL
is reset, the new V
Level Sequence (V
RESET
TRIP
Reset Circuit
CC
pin and the programming
programming sequence.
4.7K
0 1 2 3 4 5 6 7
TRIP
V
TRIP
P
to a “native”
TRIP
CC
= 12-15V
00H
TRIP
/V
is some-
1
2
3
4
5
6
7
is 4.4V
2MON
www.xicor.com
X40626
must
TRIP
*for V
for V
> 3V, WP = 12-15V, WEL bit set)
14
13
12
TRIP
9
8
0 1 2 3 4 5 6 7
TRIP2
To reset the new V
bit in the control register, apply the desired V
threshold voltage to the V
voltage, V
byte of “00” data. The stop bit of a valid write operation
initiates the V
LOW to complete the operation.
address is 03H
address is 0FH
xxH*
P
, to the WP pin and 2 byte address and 1
Adjust
TRIP
Run
TRIP
Characteristics subject to change without notice.
programming sequence. Bring WP
0 1 2 3 4 5 6 7
V
P
voltage start by setting the WEL
CC
00H
pin and the programming
SCL
SDA
µC
4 of 23
TRIP