X9421WS16-2.7 Intersil, X9421WS16-2.7 Datasheet

IC DIGITAL POT 10K 64TP 16SOIC

X9421WS16-2.7

Manufacturer Part Number
X9421WS16-2.7
Description
IC DIGITAL POT 10K 64TP 16SOIC
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of X9421WS16-2.7

Taps
64
Resistance (ohms)
10K
Number Of Circuits
1
Temperature Coefficient
300 ppm/°C Typical
Memory Type
Non-Volatile
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.300", 7.5mm Width)
Resistance In Ohms
10K
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
X9421WS16-2.7
Manufacturer:
Intersil
Quantity:
218
Single Digitally Controlled (XDCP™)
Potentiometer
Description
The X9421 integrates a single digitally controlled
potentiometer (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 SPI bus interface. The potentiometer
has associated with it a volatile Wiper Counter Register
(WCR) and a 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.
Block Diagram
SPI
BUS
INTERFACE
ADDRESS
STATUS
DATA
®
1
Data Sheet
INTERFACE &
CONTROL
V
BUS
V
SS
CC
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2008, 2009. All Rights Reserved
TRANSFER
INC / DEC
CONTROL
WRITE
READ
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
POWER-ON RECALL
DATA REGISTERS
REGISTER (WCR)
WIPER COUNTER
Features
• Single Voltage Potentiometer
• 64 Resistor Taps
• SPI Serial Interface for Write, Read, and Transfer
• Wiper Resistance, 150Ω Typical at 5V
• 4 Non-Volatile Data Registers
• Non-Volatile Storage of Multiple Wiper Positions
• Power-on Recall. Loads Saved Wiper Position on
• Standby Current < 5µA Max
• V
• 2.5kΩ, 10kΩ End to End Resistance
• 100 yr. Data Retention
• Endurance: 100, 000 Data Changes per Bit per Register
• 14 Ld TSSOP, 16 Ld SOIC
• Low Power CMOS
• Pb-Free Available (RoHS Compliant)
4 BYTES
Operations of the Potentiometer
Power-up.
CC
January 14, 2009
: 2.7V to 5.5V Operation
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Low Noise/Low Power/SPI Bus
R
W
WIPER
/V
W
R
R
H
L
/V
/V
POT
H
L
10kΩ
64-TAPS
X9421
FN8196.4

Related parts for X9421WS16-2.7

X9421WS16-2.7 Summary of contents

Page 1

... SS 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, 2008, 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners. X9421 Low Noise/Low Power/SPI Bus FN8196 ...

Page 2

... X9421YS ZF X9421YS16I-2.7* X9421 YS G X9421YS16IZ-2.7* (Note) X9421 YS ZG X9421YV14-2.7* X9421 YVF X9421YV14Z-2.7* (Pb-free) X9421 YVZF X9421YV14I-2.7* X9421 YVG X9421YV14IZ-2.7* (Pb-free) X9421 YVZG X9421WS16-2.7* X9421WS F X9421WS16Z-2.7* (Note) X9421WS ZF X9421WS16I-2.7* X9421WS G X9421WS16IZ-2.7* (Note) X9421WS ZG X9421WV14-2.7* X9421 WVF X9421WV14Z-2.7* (Pb-free) X9421 WVZF X9421WV14I-2.7* X9421 WVG X9421WV14IZ-2.7* (Pb-free) X9421 WVZG *Add " ...

Page 3

Detailed Functional Diagrams V CC HOLD CONTROL CS INTERFACE SCK AND SO CONTROL CIRCUITRY Circuit Level Applications • Vary the Gain of a Voltage Amplifier • Provide Programmable DC Reference Voltages for Comparators and Detectors ...

Page 4

X9421 (14 LD TSSOP) TOP VIEW SCK SI 6 VSS 7 Pin Assignments TSSOP SOIC PIN NO. PIN NO ...

Page 5

DEVICE ADDRESS ( The address input is used to set the least significant bit 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 ...

Page 6

SERIAL DATA PATH FROM INTERFACE CIRCUITRY REGISTER 0 REGISTER 2 IF WCR = 00[H] THEN WCR = 3F[H] THEN FIGURE 1. DETAILED POTENTIOMETER BLOCK DIAGRAM Write In Process The ...

Page 7

Two of the eight instructions are two bytes in length and end with the transmission of the instruction byte. These instructions are: • XFR Data Register to Wiper Counter Register —This instruction transfers the contents of one specified Data Register ...

Page 8

CS SCL FIGURE 6. THREE-BYTE INSTRUCTION SEQUENCE (READ) CS SCK FIGURE 7. INCREMENT/DECREMENT INSTRUCTION SEQUENCE SCK INC/DEC CMD ISSUED 8 X9421 ...

Page 9

INSTRUCTION I 3 Read Wiper Counter Register 1 Write Wiper Counter Register 1 Read Data Register 1 Write Data Register 1 XFR Data Register to Wiper 1 Counter Register XFR Wiper Counter Register to Data 1 Register Increment/Decrement Wiper 0 ...

Page 10

Transfer Data Register (DR) to Wiper Counter Register (WCR) Transfer the contents of the Register pointed the WCR. DEVICE TYPE DEVICE CS IDENTIFIER ADDRESSES FALLING EDGE ...

Page 11

... Thermal Resistance (Typical, Note 1) 14 Lead TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Lead SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Temperature Under Bias . . . . . . . . . . . . . . . . . . . . .-65°C to +135°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Operating Conditions Temperature Range Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C Industrial .-40°C to +85°C TEST CONDITIONS +25° ...

Page 12

DC Electrical Specifications (Over the recommended operating conditions unless otherwise specified). SYMBOL PARAMETER I V Supply Current CC1 CC (Active Supply Current CC2 CC (Nonvolatile Write Current (Standby Input Leakage Current LI I ...

Page 13

AC Test Conditions I nput pulse levels V CC Input rise and fall times 10ns Input and output timing level V CC Equivalent AC Load Circuit 5V 1533Ω SDA Output 100pF Circuit #3 SPICE Macro Model R TOTAL R H ...

Page 14

AC Timing SYMBOL f SSI/SPI Clock Frequency SCK t SSI/SPI Clock Cycle Time CYC t SSI/SPI Clock High Time WH t SSI/SPI Clock Low Time WL t Lead Time LEAD t Lag Time LAG t SI, SCK, HOLD and CS ...

Page 15

Symbol Table WAVEFORM INPUTS OUTPUTS MUST BE WILL BE STEADY STEADY MAY CHANGE WILL CHANGE FROM LOW TO FROM HIGH HIGH MAY CHANGE WILL CHANGE FROM HIGH TO FROM HIGH TO LOW LOW DON’T CARE: CHANGING: CHANGES ...

Page 16

Hold Timing CS SCK HOLD XDCP Timing (for All Load Instructions) CS SCK MSB HIGH IMPEDANCE SO XDCP Timing (for Increment/Decrement Instruction) CS SCK ADDR HIGH IMPEDANCE SO 16 X9421 ...

Page 17

Write Protect and Device Address Pins Timing Applications information 1. Electronic potentiometers provide three powerful application advantages: The variability and reliability of a solid-state potentiometer, Basic Configurations of Electronic Potentiometers ...

Page 18

Application Circuits BUFFERED REFERENCE VOLTAGE +5V V OP- – -5V VOLTAGE REGULATOR V 317 adj (REG) = 1.25V (1 adj ...

Page 19

Thin Shrink Small Outline Plastic Packages (TSSOP) N INDEX 0.25(0.010) E AREA E1 - 0.05(0.002) SEATING PLANE - -C- α 0.10(0.004) 0.10(0.004 NOTES: 1. These package ...

Page 20

... 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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