x9521v20iz-b Intersil Corporation, x9521v20iz-b Datasheet - Page 2

• Manufacturer Part Number: x9521v20iz-b
• Description: Dual Dcp, Eeprom Memory
• Manufacturer: Intersil Corporation

Ordering Information
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
PIN CONFIGURATION
PIN ASSIGNMENT
X9521V20I-A
X9521V20I-B
X9521V20IZ-A (Note)
X9521V20IZ-B (Note)
4, 5, 6,
14, 15,
16, 17,
18, 19
Pin
10
11
12
13
20
1
2
3
7
8
9
PART NUMBER
Name
SDA
R
R
SCL
R
R
R
R
WP
Vss
Vcc
NC
H2
w2
w1
H1
L2
L1
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) DCP2.
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 de-
vice. The SDA pin input buffer is always active (not gated). This pin requires an external pull up resistor.
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.
Supply Voltage.
No connect.
X9521VIA
X9521VIB
X9521VZIA
X9521VZIB
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 Pro-
tection is enabled, and the device Block Lock feature is active (i.e. the Block Lock bits are NOT [0,0]), 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.
PART MARKING
2
Optimized for 3.3V system monitoring
Optimized for 5V system monitoring
Optimized for 3.3V system monitoring
Optimized for 5V system monitoring
PRESET (FACTORY SHIPPED) V
THRESHOLD LEVELS (x = 2, 3)
SDA
R
SCL
R
V
R
WP
NC
NC
NC
W2
SS
H2
L2
20 Pin TSSOP
10
1
2
3
4
5
6
7
8
9
X9521
20
19
18
17
16
15
14
13
12
11
Function
TRIPx
Vcc
NC
NC
NC
NC
NC
NC
R
R
R
H1
W1
L1
TEMP RANGE (°C)
-40 to +85
-40 to +85
-40 to +85
-40 to +85
20 Ld TSSOP
20 Ld TSSOP
20 Ld TSSOP (Pb-free)
20 Ld TSSOP (Pb-free)
PACKAGE
January 3, 2006
FN8207.1