X9258US24IZ-2.7 Intersil, X9258US24IZ-2.7 Datasheet

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X9258US24IZ-2.7

Manufacturer Part Number
X9258US24IZ-2.7
Description
IC XDCP QUAD 256TP 50K 24-SOIC
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of X9258US24IZ-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
-40°C ~ 85°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 Digital Controlled Potentiometers
(XDCP™)
The X9258 integrates 4 digitally controlled potentiometers
(XDCP™) on a monolithic CMOS integrated circuit.
The digitally 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 bus interface. Each
potentiometer has associated with it a volatile Wiper Counter
Register (WCR) and 4 non-volatile Data Registers
(DR0:DR3) 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 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
SDA
SCL
WP
V
V
V+
V-
A0
A1
A2
A3
CC
SS
INTERFACE
CIRCUITRY
CONTROL
AND
DATA
8
1
XDCP is a trademark of Intersil Americas Inc. Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
Data Sheet
R
R
R
R
0
2
0
2
R
R
R
R
1
3
1
3
REGISTER
COUNTER
REGISTER
COUNTER
WIPER
(WCR)
WIPER
(WCR)
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
RESISTOR
ARRAY
POT 1
POT 0
Low Noise/Low Power/2-Wire Bus/256 Taps
Features
• Four potentiometers in one package
• 256 resistor taps/potentiometer................. 0.4% resolution
• 2-wire serial interface
• Wiper resistance, 40Ω typical @ V+ = 5V, V- = -5V
• Four nonvolatile data registers for each potentiometer
• Nonvolatile storage of wiper position
• Standby current <5µA max (total package)
• Power supplies
• 100kΩ, 50kΩ total potentiometer resistance
• High reliability
• 24 Ld SOIC, 24 Ld TSSOP
• Dual supply version of X9259
• Pb-free available (RoHS compliant)
V
V
W0
V
V
V
W1
- V
- V+ = 2.7V to 5.5V
- V- = -2.7V to -5.5V
- Endurance: 100,000 data changes per bit per register
- Register data retention . . . . . . . . . . . . . . . . . . 100 years
H1
V
L1
L0
/R
H0
/R
/R
/R
/R
W0
/R
W1
CC
H1
L1
L0
H0
All other trademarks mentioned are the property of their respective owners.
April 14, 2011
= 2.7V to 5.5V
|
Copyright Intersil Americas Inc. 2005, 2006, 2011. All Rights Reserved
R
R
R
R
0
2
0
2
R
R
R
R
1
3
1
3
REGISTER
COUNTER
REGISTER
COUNTER
WIPER
(WCR)
WIPER
(WCR)
RESISTOR
RESISTOR
ARRAY
ARRAY
POT 2
POT 3
X9258
FN8168.5
V
V
V
V
V
V
L2
H2
L3
H3
W2
W3
/R
/R
/R
/R
/R
/R
L2
H2
L3
H3
W2
W3

Related parts for X9258US24IZ-2.7

X9258US24IZ-2.7 Summary of contents

Page 1

... CIRCUITRY A2 A3 DATA 1 XDCP is a trademark of Intersil Americas Inc. Intersil (and design trademark owned by Intersil Corporation or one of its subsidiaries. Low Noise/Low Power/2-Wire Bus/256 Taps Features • Four potentiometers in one package • 256 resistor taps/potentiometer................. 0.4% resolution • 2-wire serial interface • Wiper resistance, 40Ω typical @ -5V • ...

Page 2

... X9258TS24Z (Note) X9258TS Z X9258TS24I* X9258TS I X9258TS24IZ* (Note) X9258TS ZI X9258TV24 X9258TV X9258TV24I X9258TV I X9258US24-2.7* X9258US F X9258US24Z-2.7* (Note) X9258US ZF X9258US24I-2.7* X9258US G , X9258US24IZ-2.7* ** (Note) X9258US ZG X9258UV24-2.7* X9258UV F X9258UV24I-2.7 X9258UV G X9258UV24IZ-2.7 (Note) X9258UV ZG X9258TS24-2.7* X9258TS F X9258TS24Z-2.7* (Note) X9258TS ZF X9258TS24I-2.7* X9258TS G X9258TS24IZ-2.7* (Note) X9258TS ZG X9258TV24-2.7 X9258TV F X9258TV24I-2 ...

Page 3

Pinout Pin Descriptions Host Interface Pins SERIAL CLOCK (SCL) The SCL input is used to clock data into and out of the X9258. SERIAL DATA (SDA) SDA is a bidirectional pin used to transfer data into and out of the ...

Page 4

Therefore, the X9258 will be considered a slave device in all applications. Clock and Data Conventions Data states on the SDA line can change only during SCL ...

Page 5

ACK Polling Sequence NONVOLATILE WRITE COMMAND COMPLETED ENTER ACK POLLING ISSUE START ISSUE SLAVE ADDRESS ACK NO RETURNED? YES FURTHER NO OPERATION? YES ISSUE INSTRUCTION PROCEED Instruction Structure The next byte sent to the X9258 contains the instruction and register ...

Page 6

The Increment/Decrement command is different from the other commands. Once the command is issued and the X9258 has responded with an acknowledge, the master can clock the selected wiper up and/or down in one segment steps; thereby, providing a fine ...

Page 7

SCL SDA SCL SDA FIGURE 5. INCREMENT/DECREMENT INSTRUCTION SEQUENCE F I INC/DEC CMD ISSUED SCL SD ...

Page 8

SERIAL DATA PATH FROM INTERFACE CIRCUITRY REGISTER 0 REGISTER 2 If WCR = 00[H] then WCR = FF[H] then FIGURE 8. ...

Page 9

Wiper Counter Register, (8-bit), Volatile WP7 WP6 WP5 WP4 WP3 (MSB) One 8-bit Wiper Counter Register for each DCP (four 8-bit registers in total.) {D7~D0}: These bits specify the wiper position of the respective DCP. ...

Page 10

XFR Data Register (DR) to Wiper Counter Register (WCR) S DEVICE T TYPE DEVICE S INSTRUCTION A IDENTIFIER ADDRESSES XFR Wiper Counter Register (WCR) to Data ...

Page 11

... Thermal Resistance (Typical, Note 7) 24 Lead SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Lead TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C Supply Voltage Range (Typical) X9258 .5V ±10% X9258-2. 2.7V to 5.5V TEST CONDITIONS +25° ...

Page 12

DC Operating Characteristics SYMBOL PARAMETER I V Supply Current (Nonvolatile CC1 CC Write Supply Current (Move Wiper, CC2 CC Write, Read Current (Standby Input Leakage Current LI I Output Leakage Current LO V ...

Page 13

Power-Up and Power-Down Requirement The are no restrictions on the sequencing of the bias supplies V , V+, and V- provided that all three supplies reach their final CC values within 1ms of each other. At all times, the voltages ...

Page 14

Test Circuit #3 SPICE Macro Model MACRO MODEL R TOTAL 10pF 25pF Timing Over recommended operating conditions, unless otherwise specified. SYMBOL f Clock Frequency SCL t Clock Cycle Time CYC t ...

Page 15

High-Voltage Write Cycle Timing SYMBOL t High-Voltage Write Cycle Time (Store Instructions) WR DCP 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 16

DCP Timing (for All Load Instructions) SCL SDA VWx DCP Timing (for Increment/Decrement Instruction) SCL WIPER REGISTER ADDRESS SDA VWx Write Protect and Device Address Pins Timing SCL SDA WP A0 X9258 LSB t WRL INCREMENT/DECREMENT ...

Page 17

Applications information Basic Configurations of Electronic Potentiometers V R FIGURE 9. THREE TERMINAL POTENTIOMETER; VARIABLE VOLTAGE DIVIDER Application Circuits – ( FIGURE 11. ...

Page 18

Application Circuits (Continued – All R = 10kΩ -1/2 ≤ G ≤ +1/2 FIGURE 15. ATTENUATOR – ...

Page 19

Thin Shrink Small Outline Package Family (TSSOP (N/2)+ (N/2) B TOP VIEW e C SEATING PLANE 0. LEADS SIDE VIEW SEE DETAIL “X” c END VIEW ...

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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