x9522v20iz-bt1 Intersil Corporation, x9522v20iz-bt1 Datasheet - Page 3

• Manufacturer Part Number: x9522v20iz-bt1
• Description: Triple Dcp, Dual Voltage Monitors
• Manufacturer: Intersil Corporation

PIN ASSIGNMENT
6, 19
Pin
10
11
12
13
14
15
16
17
18
20
1
2
3
4
5
7
8
9
Vcc / V1
Name
V3RO
V2RO
SCL
SDA
R
R
R
R
R
R
R
WP
Vss
R
R
NC
V3
V2
W0
H2
w2
w1
H1
H0
L2
L1
L0
Connection to end of resistor array for (the 256 Tap) DCP 2.
Connection to terminal equivalent to the “Wiper” of a mechanical potentiometer for DCP 2.
Connection to other end of resistor array for (the 256 Tap) DCP 2.
V3 Voltage Monitor Input. V3 is the input to a non-inverting voltage comparator circuit. When the V3
input is higher than the
V3 to V
V3 RESET Output. This open drain output makes a transition to a HIGH level when V3 is greater than
V
pin requires the use of an external “pull-up” resistor.
Serial Clock. This is a TTL level compatible input pin used to control the serial bus timing for data input
and output.
Serial Data. SDA is a bidirectional TTL level compatible pin used to transfer data into and out of the
device. The SDA pin input buffer is always active (not gated). This pin requires an external pull up re-
sistor.
Ground.
Connection to other end of resistor for (the 100 Tap) DCP 1.
Connection to terminal equivalent to the “Wiper” of a mechanical potentiometer for DCP 1.
Connection to end of resistor array for (the 100 Tap) DCP 1.
Connection to end of resistor array for (the 64 Tap) Digitally Controlled Potentiometer (DCP) 0.
Connection to terminal equivalent to the “Wiper” of a mechanical potentiometer for DCP 0.
Connection to the other end of resistor array for (the 64 Tap) DCP 0.
V2 Voltage Monitor Input. V2 is the input to a non-inverting voltage comparator circuit. When the V2
input is greater than the
V2 to V
V2 RESET Output. This open drain output makes a transition to a HIGH level when V2 is greater than
V
pin. The V2RO pin requires the use of an external “pull-up” resistor.
Supply Voltage.
No Connect.
Write Protect Control Pin. WP pin is a TTL level compatible input. When held HIGH, Write Protection is
enabled. In the enabled state, this pin prevents all nonvolatile “write” operations. Also, when the Write
Protection is enabled, and the DCP Write Lock feature is active (i.e. the DCP Write Lock bit is set to
“1”), then no “write” (volatile or nonvolatile) operations can be performed in the device (including the
wiper position of any of the integrated Digitally Controlled Potentiometers (DCPs). The WP pin uses an
internal “pull-down” resistor, thus if left floating the write protection feature is disabled.
TRIP3
TRIP2
3
, and goes LOW when V2 is less than
and goes LOW when V3 is less than V
SS
SS
when not used.
when not used.
V
V
TRIP3
TRIP2
threshold voltage, V3RO makes a transition to a HIGH level. Connect
threshold voltage, V2RO makes a transition to a HIGH level. Connect
X9522
V
Function
TRIP3
TRIP2
. There is no delay circuitry on this pin. The V3RO
. There is no power-up reset delay circuitry on this
January 3, 2006
FN8208.1