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X9408WV24Z-2.7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
1
®
X9408
Low Noise/Low Power/2-Wire Bus
Quad Digitally Controlled (XDCP™)
Potentiometers
Description
The X9408 integrates four digitally controlled potentiometers
(XDCP) on a monolithic CMOS integrated circuit.
The digital controlled potentiometer is implemented using 63
resistive elements in a series array. Between each element
are tap points connected to the wiper terminal through
switches. The position of the wiper on the array is controlled
by the user through the 2-wire bus interface. Each
potentiometer has associated with it a volatile Wiper Counter
Register (WCR) and four non-volatile Data Registers that
can be directly written to and read by the user. The contents
of the WCR controls the position of the wiper on the resistor
array though the switches. Power-up recalls the contents of
the default data register (DR0) to the WCR.
The XDCP can be used as a three-terminal potentiometer or
as a two terminal variable resistor in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Features
• Four Potentiometers in One Package
• 64 Resistor Taps per Potentiometer
• 2-wire Serial Interface
• Wiper Resistance, 40Ω Typical at 5V
• Four Nonvolatile Data Registers for Each Pot
• Nonvolatile Storage of Wiper Position
• Standby Current < 1µA max (Total Package)
•V
CC
= 2.7V to 5.5V Operation
V+ = 2.7V to 5.5V
V- = -2.7V to -5.5V
•10kΩ, 2.5kΩ End to End Resistances
• High reliability
• Endurance–100,000 Data Changes Per Bit Per Register
• Register Data Retention–100 years
• 24 Ld SOIC, 24 Ld TSSOP, 24 Ld PDIP Packages
• Pb-Free (RoHS Compliant)
Block Diagram
INTERFACE
AND
CONTROL
CIRCUITRY
SCL
SDA
A0
A1
A2
A3
R0 R1
R2 R3
WIPER
COUNTER
REGISTER
(WCR)
RESISTOR
ARRAY
POT 1
V
H1
/R
H1
V
L1
/R
L1
R0 R1
R2 R3
WIPER
COUNTER
REGISTER
(WCR)
V
H0
/R
H0
V
L0
/R
L0
DATA
8
V
W0
/R
W0
V
W1
/R
W1
R0 R1
R2 R3
RESISTOR
ARRAY
V
H2
/R
H2
V
L2
/R
L2
V
W2
/R
W2
R0 R1
R2 R3
RESISTOR
ARRAY
V
H3
/R
H3
V
L3
/R
L3
V
W3
/R
W3
WIPER
COUNTER
REGISTER
(WCR)
WIPER
COUNTER
REGISTER
(WCR)
POT 3
POT 2
WP
POT 0
V
CC
V
SS
V+
V-
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
Data Sheet FN8191.4January 15, 2009
2
FN8191.4
January 15, 2009
Ordering Information
PART NUMBER PART MARKING V
CC
LIMITS (V)
POTENTIOMETER
ORGANIZATION
(kΩ)
TEMP RANGE
(°C) PACKAGE
X9408YS24* X9408YS 5 ±10% 2.5 0 to +70 24 Ld SOIC (300 mil)
X9408YS24I* X9408YS I -40 to +85 24 Ld SOIC (300 mil)
X9408YV24* X9408YV 0 to +70 24 Ld TSSOP (4.4mm)
X9408YV24Z* (Note) X9408YV Z 0 to +70 24 Ld TSSOP (4.4mm) (Pb-Free)
X9408YV24I* X9408YV I -40 to +85 24 Ld TSSOP (4.4mm)
X9408YV24IZ* (Note) X9408YV Z I -40 to +85 24 Ld TSSOP (4.4mm) (Pb-Free)
X9408WS24* X9408WS 10 0 to +70 24 Ld SOIC (300 mil)
X9408WS24I* X9408WS I -40 to +85 24 Ld SOIC (300 mil)
X9408WV24* X9408WV 0 to +70 24 Ld TSSOP (4.4mm)
X9408WV24Z* (Note) X9408WV Z 0 to +70 24 Ld TSSOP (4.4mm) (Pb-Free)
X9408WV24I* X9408WV I -40 to +85 24 Ld TSSOP (4.4mm)
X9408WV24IZ* (Note) X9408WV Z I -40 to +85 24 Ld TSSOP (4.4mm) (Pb-Free)
X9408YS24-2.7* X9408YS F 2.7 to 5.5 2.5 0 to +70 24 Ld SOIC (300 mil)
X9408YS24I-2.7* X9408YS G -40 to +85 24 Ld SOIC (300 mil)
X9408YV24-2.7* X9408YV F 0 to +70 24 Ld TSSOP (4.4mm)
X9408YV24Z-2.7* (Note) X9408YV Z F 0 to +70 24 Ld TSSOP (4.4mm) (Pb-Free)
X9408YV24I-2.7* X9408YV G -40 to +85 24 Ld TSSOP (4.4mm)
X9408YV24IZ-2.7T1 (Note) X9408YV Z G -40 to +85 24 Ld TSSOP (4.4mm) Tape and Reel
(Pb-Free)
X9408WS24-2.7* X9408WS F 10 0 to +70 24 Ld SOIC (300 mil)
X9408WS24I-2.7* X9408WS G -40 to +85 24 Ld SOIC (300 mil)
X9408WS24IZ-2.7* (Note) X9408WS Z G -40 to +85 24 Ld SOIC (300 mil) (Pb-Free)
X9408WV24-2.7* X9408WV F 0 to +70 24 Ld TSSOP (4.4mm)
X9408WV24Z-2.7* (Note) X9408WV Z F 0 to +70 24 Ld TSSOP (4.4mm) (Pb-Free)
X9408WV24I-2.7* X9408WV G -40 to +85 24 Ld TSSOP (4.4mm)
X9408WV24IZ-2.7* (Note) X9408WV Z G -40 to +85 24 Ld TSSOP (4.4mm) (Pb-Free)
*Add "T1" suffix for tape and reel. **Add "T1" suffix for tape and reel.Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100%
matte tin plate plus anneal (e3 termination finish, which is 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.
X9408
3
FN8191.4
January 15, 2009
Pin Descriptions
Host Interface Pins
SERIAL CLOCK (SCL)
The SCL input is used to clock data into and out of the
X9408.
SERIAL DATA (SDA)
SDA is a bidirectional pin used to transfer data into and out
of the device. It is an open drain output and may be wire-
ORed with any number of open drain or open collector
outputs. An open drain output requires the use of a pull-up
resistor. For selecting typical values, refer to the guidelines
for calculating typical values on the bus pull-up resistors
graph.
DEVICE ADDRESS (A
0
- A
3
)
The address inputs are used to set the least significant 4 bits
of the 8-bit slave address. A match in the slave address
serial data stream must be made with the address input in
order to initiate communication with the X9408. A maximum
of 16 devices may occupy the 2-wire serial bus.
Potentiometer Pins
V
H
/R
H
(V
H0
/R
H0
- V
H3
/R
H3
), V
L
/R
L
(V
L0
/R
L0
- V
L3
/R
L3
)
The V
H
/R
H
and V
L
/R
L
inputs are equivalent to the terminal
connections on either end of a mechanical potentiometer.
V
W
/R
W
(V
W0
/R
W0
– V
W3
/R
W3
)
The wiper outputs are equivalent to the wiper output of a
mechanical potentiometer.
HARDWARE WRITE PROTECT INPUT (WP)
The WP pin when low prevents nonvolatile writes to the Data
Registers.
ANALOG SUPPLIES V+, V-
The Analog Supplies V+, V- are the supply voltages for the
XDCP analog section.
Pin Assignments
Pinouts
X9408
(24 LD DIP/SOIC)
TOP VIEW
X9408
(24 LD TSSOP)
TOP VIEW
SYMBOL DESCRIPTION
SCL Serial Clock
SDA Serial Data
A0-A3 Device Address
V
H0
/R
H0
- V
H3
/R
H3
, V
L0
/R
L0
- V
L3
/R
L3
Potentiometer Pins
(terminal equivalent)
V
W0
/R
W0
- V
W3
/R
W3
Potentiometer Pins
(wiper equivalent)
WP
Hardware Write Protection
V+,V- Analog Supplies
V
CC
System Supply Voltage
V
SS
System Ground
NC No Connection
1
2
3
4
5
6
7
8
9
10
11
12
V
CC
V
L0
/R
L0
V
H0
/R
H0
V
W0
/R
W0
A
2
WP
SDA
A
1
V
L1
/R
L1
V
H1
/R
H1
V
W1
/R
W1
V
SS
16
17
18
19
20
21
22
23
24
15
14
13
V+
V
H3
/R
H3
V
W3
/R/R
H1
A
0
NC
SCL
V
H2
/R
H2
V
W2
/R
W2
V-
V
L3
/R
L3
A
3
V
L2
/R
L2
1
2
3
4
5
6
7
8
9
10
11
12
SDA
A
1
V
L1
/R
L1
V
H1
/R
H1
V
W1
/R
W1
V
SS
V-
V
W2
/R
W2
V
H2
/R
H2
V
L2
/R
L2
SCL
A
3
16
17
18
19
20
21
22
23
24
15
14
13
WP
V
W0
/R
W0
V
H0
/R
H0
V
L0
/R
L0
V
CC
V
L3
/R
L3
V
W3
/R
W3
A
0
NC
A
2
V+
V
H3
/R
H3
X9408
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

X9408WV24Z-2.7

Mfr. #:
Buy X9408WV24Z-2.7
Manufacturer:
Renesas / Intersil
Description:
Digital Potentiometer ICs DL CMOS EEPOT 10KOHM S
Lifecycle:
New from this manufacturer.
Delivery:
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