X9259US24Z-2.7 Intersil, X9259US24Z-2.7 Datasheet

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X9259US24Z-2.7

Manufacturer Part Number
X9259US24Z-2.7
Description
IC XDCP QUAD 256TAP 50K 24-SOIC
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of X9259US24Z-2.7

Taps
256
Resistance (ohms)
50K
Number Of Circuits
4
Temperature Coefficient
300 ppm/°C Typical
Memory Type
Non-Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Resistance In Ohms
50K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Quad Digitally-Controlled (XDCP™)
Potentiometers
The X9259 integrates four digitally controlled potentiometers
(XDCP) on a monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with
a combination of resistor elements and CMOS switches. The
position of the wipers are 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 content of the WCR controls the
position of the wiper. At power-up, the device recalls the
content of the default Data Registers of each DCP (DR00,
DR10, DR20, and DR30) to the corresponding 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.
Functional Diagram
SDA
SCL
A3
A2
A1
A0
Interface
2-Wire
V
V
CC
SS
INTERFACE
POWER UP,
CONTROL
STATUS
AND
®
1
Data Sheet
WP
WCR0
DR00
DR01
DR02
DR03
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005-2007. All Rights Reserved
1-888-INTERSIL or 1-888-468-3774
R
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
W0
DCP0
R
Single Supply/Low Power/256-Tap/2-Wire bus
R
L0
H0
Features
• Four Separate Potentiometers in One Package
• 256 Resistor Taps–0.4% Resolution
• 2-Wire Serial Interface for Write, Read, and
• Wiper Resistance: 100Ω typical @ V
• 4 Non-volatile Data Registers for Each Potentiometer
• Non-volatile Storage of Multiple Wiper Positions
• Standby Current <5µA Max
• V
• 50kΩ, 100kΩ versions of Total Resistance
• Endurance: 100,000 Data Changes per Bit per Register
• 100 year Data Retention
• Single Supply Version of X9258
• 24 Ld SOIC, 24 Ld TSSOP
• Low Power CMOS
• Pb-Free Plus Anneal Available (RoHS Compliant)
WCR1
DR10
DR11
DR12
DR13
Transfer Operations of the Potentiometer
CC
R
: 2.7V to 5.5V Operation
W1
DCP1
All other trademarks mentioned are the property of their respective owners.
April 13, 2007
|
R
R
Intersil (and design) is a registered trademark of Intersil Americas Inc.
H1
L1
WCR2
DR20
DR21
DR22
DR23
R
W2
DCP2
R
R
H2
L2
WCR3
DR30
DR31
DR32
DR33
CC
= 5V
R
W3
DCP3
X9259
FN8169.5
R
R
H3
L3

Related parts for X9259US24Z-2.7

X9259US24Z-2.7 Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005-2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners. X9259 FN8169.5 ...

Page 2

... X9259TS24-2.7* X9259TS F X9259TS24Z-2.7* (Note) X9259TS ZF X9259TS24I-2.7 X9259TS G X9259TS24IZ-2.7 (Note) X9259TS ZG X9259TV24-2.7 X9259TV F X9259TV24Z-2.7 (Note) X9259TV ZF X9259US24-2.7 X9259US F X9259US24Z-2.7 (Note) X9259US ZF X9259US24I-2.7 X9259US G X9259US24IZ-2.7 (Note) X9259US ZG X9259UV24-2.7* X9259UV F X9259UV24Z-2.7 (Note) X9259UV ZF X9259UV24I-2.7* X9259UV G X9259UV24IZ-2.7* (Note) X9259UV ZG 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 ...

Page 3

Circuit Level Applications • Vary the gain of a voltage amplifier • Provide programmable dc reference voltages for comparators and detectors • Control the volume in audio circuits • Trim out the offset voltage error in a voltage amplifier circuit ...

Page 4

... SYSTEM SUPPLY VOLTAGE (V GROUND (V The V CC the system ground. Other Pins NO CONNECT No connect pins should be left open. This pins are used for Intersil manufacturing and testing purposes. HARDWARE WRITE PROTECT INPUT (WP) The WP pin when LOW prevents non-volatile writes to the Data Registers. DR#0 DR ...

Page 5

Principles of Operation The X9259 is an integrated circuit incorporating four DCPs and their associated registers and counters, and the serial interface providing direct communication between a host and the potentiometers. DCP Description Each DCP is implemented with a combination ...

Page 6

Serial Interface The X9259 supports a bidirectional bus oriented protocol. The protocol defines any device that sends data onto the bus as a transmitter and the receiving device as the receiver. The device controlling the transfer is a master and ...

Page 7

SCL SDA START FIGURE 2. VALID DATA CHANGES, START, AND STOP CONDITIONS SCL FROM MASTER SDA OUTPUT FROM TRANSMITTER SDA OUTPUT FROM RECEIVER START FIGURE 3. ACKNOWLEDGE RESPONSE FROM RECEIVER Identification Byte The first byte sent to the X9259 from ...

Page 8

TABLE 3. IDENTIFICATION BYTE FORMAT Device Type Identifier ID3 ID2 ID1 (MSB) TABLE 4. INSTRUCTION BYTE FORMAT Instruction Opcode (MSB) TABLE 5. INSTRUCTION SET INSTRUCTION I3 Read Wiper Counter 1 Register Write Wiper Counter ...

Page 9

Instructions Four of the nine instructions are three bytes in length. These instructions are: • Read Wiper Counter Register – read the current wiper position of the selected potentiometer, • Write Wiper Counter Register – change current wiper position of ...

Page 10

SCL SDA ID3 ID2 ID1 ID0 External A Device ID R Address T FIGURE 6. INCREMENT/DECREMENT INSTRUCTION SEQUENCE 2-WIRE INTERFACE INC/DEC CMD Issued SCL SDA X9259 I3 ...

Page 11

Instruction Format Read Wiper Counter Register (WCR) Device Type Device S Identifier Addresses Write Wiper Counter Register (WCR) Device Type Device S Identifier Addresses ...

Page 12

Global XFR Wiper Counter Register (WCR) to Data Register (DR) S Device Type Device T Identifier Addresses Transfer Wiper Counter Register (WCR) to Data Register (DR) S Device Type ...

Page 13

Absolute Maximum Ratings Temperature under bias . . . . . . . . . . . . . . . . . . . . . .-65°C to +135°C Storage temperature . . . . . . . . ...

Page 14

DC Electrical Specifications Over the recommended operating conditions unless otherwise specified. SYMBOL PARAMETER I V supply current CC1 CC (active supply current CC2 CC (non-volatile write current (standby Input leakage current LI I ...

Page 15

Equivalent A.C. Load Circuit 5V 1533Ω SDA pin 100pF AC Timing SYMBOL f Clock Frequency SCL t Clock Cycle Time CYC t Clock High Time HIGH t Clock Low Time LOW t Start Setup Time SU:STA t Start Hold Time ...

Page 16

Symbol Table WAVEFORM INPUTS Must be steady May change from Low to High May change from High to Low Don’t Care: Changes Allowed N/A Timing Diagrams Start and Stop Timing (START) SCL t SU:STA SDA Input Timing t CYC SCL ...

Page 17

XDCP Timing (for All Load Instructions) SCL SDA VWx Write Protect and Device Address Pins Timing SCL SDA WP A0 X9259 LSB t WRL (START) (STOP) ... (Any Instruction) ... ... t t SU:WPA HD:WPA (STOP) FN8169.5 April ...

Page 18

Applications Information Basic Configurations of Electronic Potentiometers V R Three terminal Potentiometer; Variable voltage divider Application Circuits Non inverting Amplifier – (1 Offset Voltage Adjustment R ...

Page 19

Application Circuits (continued) Attenuator – -1/2 ≤ G ≤ +1/2 Inverting Amplifier ...

Page 20

Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - -C- α 0.10(0.004) 0.25(0.010 NOTES: 1. Symbols are defined in the ...

Page 21

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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