X9269TV24IZ-2.7T1 Intersil, X9269TV24IZ-2.7T1 Datasheet

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X9269TV24IZ-2.7T1

Manufacturer Part Number
X9269TV24IZ-2.7T1
Description
IC POT XDCP DUAL 50K OHM 24-SOIC
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of X9269TV24IZ-2.7T1

Taps
256
Resistance (ohms)
100K
Number Of Circuits
2
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
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Resistance In Ohms
100K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Dual Digitally-Controlled (XDCP™)
Potentiometers
FEATURES
• Dual–Two Separate Potentiometers
• 256 Resistor Taps/Pot–0.4% Resolution
• 2-Wire Serial Interface for Write, Read, and
• Wiper Resistance, 100Ω Typical V
• 4 Nonvolatile Data Registers for Each
• Nonvolatile Storage of Multiple Wiper Positions
• Power-on Recall. Loads Saved Wiper Position
• Standby Current < 5µA Max
• 50kΩ, 100kΩ Versions of End to End Pot
• 100 yr. Data Retention
• Endurance: 100,000 Data Changes per Bit per
• 24-Lead SOIC, 24-Lead TSSOP
• Low Power CMOS
• Power Supply V
• Pb-Free Plus Anneal Available (RoHS Compliant)
FUNCTIONAL DIAGRAM
Interface
2-Wire
Transfer Operations of the Potentiometer Single
Supply Device
Potentiometer
on Power-up.
Resistance
Register
Bus
Address
Status
Data
CC
= 2.7V to 5.5V
and Control
Interface
®
V
Bus
V
CC
1
SS
Data Sheet
Transfer
Inc/Dec
Control
Write
Read
CC
= 5V
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006, 2007. All Rights Reserved
Registers (WCR)
Power-on Recall
Wiper Counter
Data Registers
(DR0–DR3)
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Single Supply/Low Power/256-Tap/2-Wire Bus
DESCRIPTION
The
potentiometer
integrated circuit.
The digital controlled potentiometer is implemented
using 255 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
associated with it a volatile Wiper Counter Register
(WCR) and a four nonvolatile 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. Powerup
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.
R
W0
X9269
All other trademarks mentioned are the property of their respective owners.
April 17, 2007
bus
|
R
R
Intersil (and design) is a registered trademark of Intersil Americas Inc.
H0
L0
interface.
R
(XDCP)
integrates
W1
50kΩ or 100kΩ versions
R
R
H1
L1
on
Each
2
a
digitally
potentiometer
monolithic
X9269
FN8173.4
controlled
CMOS
has

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X9269TV24IZ-2.7T1 Summary of contents

Page 1

... W0 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006, 2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners. X9269 April 17, 2007 FN8173 ...

Page 2

... X9269US24Z* (Note) X9269US Z X9269UV24* X9269UV X9269UV24I X9269UV I X9269TS24-2.7* X9269TS F X9269TS24I-2.7* X9269TS G X9269TS24IZ-2.7* (Note) X9269TS ZG X9269TS24Z-2.7* (Note) X9269TS ZF X9269TV24I-2.7 X9269TV G X9269TV24IZ-2.7* (Note) X9269TV ZG X9269US24-2.7* X9269US F X9269US24I-2.7* X9269US G X9269US24IZ-2.7* (Note) X9269US ZG X9269US24Z-2.7* (Note) X9269US ZF X9269UV24-2.7* X9269UV F X9269UV24I-2.7* X9269UV G X9269UV24IZ-2.7* X9269UV ZG *Add "T1" suffix for tape and reel. ...

Page 3

DETAILED FUNCTIONAL DIAGRAM SCL SDA 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 ...

Page 4

PIN CONFIGURATION SOIC/TSSOP X9269 ...

Page 5

... The V CC pin is the system ground. Other Pins ONNECT No connect pins should be left open. This pins are used for Intersil manufacturing and testing purposes ARDWARE RITE ROTECT The WP pin when LOW prevents nonvolatile writes to the Data Registers. ...

Page 6

PRINCIPLES OF OPERATION The X9269 is a integrated microcircuit incorporating four resistor arrays and their associated registers and counters and the serial interface logic providing direct communication between the host and the digitally controlled potentiometers. This section provides detail description ...

Page 7

SERIAL INTERFACE DESCRIPTION Serial Interface The X9269 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 ...

Page 8

Acknowledge Polling The disabling of the inputs, during the internal nonvolatile write operation, can be used to take advantage of the typical 5ms EEPROM write cycle time. Once the stop condition is issued to indicate the end of the nonvolatile ...

Page 9

Table 1. Identification Byte Format Device Type Identifier ID3 ID2 ID1 (MSB) Table 2. Instruction Byte Format Instruction Opcode (MSB) Table 3. Instruction Set Instruction I3 Read Wiper Counter 1 Register Write Wiper Counter ...

Page 10

DEVICE DESCRIPTION Wiper Counter Register (WCR) The X9269 contains two Wiper Counter Registers, one for each DCP potentiometer. The Wiper Counter Register can be envisioned as a 8-bit parallel and serial load counter with its outputs decoded to select one ...

Page 11

DEVICE DESCRIPTION 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 ...

Page 12

Figure 3. Two-Byte Instruction Sequence SCL SDA ID3 ID2 ID1 ID0 Device ID T Figure 4. Three-Byte Instruction Sequence SCL SDA ID3 ID2 ID1 ID0 ...

Page 13

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 14

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 15

ABSOLUTE MAXIMUM RATINGS Temperature under bias .................... -65°C to +135°C Storage temperature ......................... -65°C to +150°C Voltage on SCL, SDA any address input with respect to V ................................. -1V to +7V SS Δ |................................................... ...

Page 16

D.C. OPERATING CHARACTERISTICS Symbol Parameter I V supply current CC1 CC (active supply current CC2 CC (nonvolatile write current (standby Input leakage current LI I Output leakage cur Input HIGH voltage ...

Page 17

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 18

HIGH-VOLTAGE WRITE CYCLE TIMING Symbol t High-voltage write cycle time (store instructions) WR XDCP TIMING Symbol t Wiper response time after the third (last) power supply is stable WRPO t Wiper response time after instruction issued (all load instructions) WRL ...

Page 19

TIMING DIAGRAMS Start and Stop Timing (START) SCL t SU:STA SDA Input Timing t CYC SCL SDA Output Timing SCL SDA 19 X9269 HD:STA SU:DAT t AA (STOP) t SU:STO t F ...

Page 20

XDCP Timing (for All Load Instructions) SCL SDA VWx Write Protect and Device Address Pins Timing SCL SDA WP A0 X9269 LSB t WRL (START) (STOP) ... (Any Instruction) ... ... t t SU:WPA HD:WPA (STOP) FN8173.4 April ...

Page 21

APPLICATIONS INFORMATION Basic Configurations of Electronic Potentiometers V R Three terminal Potentiometer; Variable voltage divider Application Circuits Noninverting Amplifier – (1 Offset Voltage Adjustment R 1 ...

Page 22

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

Page 23

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 24

... 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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