X9241YP Xicor, X9241YP Datasheet

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X9241YP

Manufacturer Part Number
X9241YP
Description
Quad E2POT nonvolatile digital potentiometer
Manufacturer
Xicor
Datasheet

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Price
Part Number:
X9241YP
Manufacturer:
XICOR
Quantity:
5 510
Part Number:
X9241YP
Manufacturer:
ATMEL
Quantity:
5 510
Part Number:
X9241YP
Quantity:
20
Preliminary Information
FUNCTIONAL DIAGRAM
Single Supply / Low Power / 1024-tap / 2-Wire bus
FEATURES
• 1024 Resistor Taps – 10-Bit Resolution
• 2-Wire Serial Interface for write, read, and
• Wiper Resistance, 40 Ω Typical @ V
• Four Non-Volatile Data Registers
• Non-Volatile Storage of Multiple Wiper Positions
• Power On Recall. Loads Saved Wiper Position on
• Standby Current < 3µA Max
• V
• 100K Ω End to End Resistance
• 100 yr. Data Retention
• Endurance: 100,000 Data Changes Per Bit Per
• 14-Lead TSSOP, 15-Lead CSP (Chip Scale
• Low Power CMOS
• Single Supply version of the X9118
REV 1.1.15 2/4/03
transfer operations of the potentiometer
Power Up.
Register
Package)
AN99 • AN115 • AN124 •AN133 • AN134 • AN135
CC
: 2.7V to 5.5V Operation
A
PPLICATION
Interface
2-Wire
Bus
A V A I L A B L E
N
OTES AND
Single Digitally-Controlled (XDCP
Address
Status
Data
D
EVELOPMENT
Interface &
S
YSTEM
Control
Bus
V
V
SS
CC
CC
= 5V
Transfer
Control
Write
Read
www.xicor.com
X9119
NC
DESCRIPTION
The X9119 integrates a single digitally controlled
potentiometer
integrated circuit.
The digital controlled potentiometer is implemented
using 1023 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. 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. 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.
Power On Recall
Register (WCR)
Data Registers
Wiper Counter
NC
(DR0-DR3)
) Potentiometer
(XDCP)
Characteristics subject to change without notice.
R
W
Wiper
on
R
R
H
L
POT
a
100KΩ
1024-taps
monolithic
CMOS
1 of 22

Related parts for X9241YP

X9241YP Summary of contents

Page 1

... V CC Write Power On Recall Read Transfer Bus Wiper Counter Register (WCR) Interface & Control Data Registers (DR0-DR3) Control www.xicor.com ) Potentiometer (XDCP monolithic R H 100KΩ 1024-taps POT Wiper Characteristics subject to change without notice. CMOS ...

Page 2

... Provide the variable DC bias for tuners in RF wireless systems • Set the operating points in temperature control systems • Control the operating point for sensors in industrial systems • Trim offset and gain errors in artificial intelligent systems www.xicor.com R H 100KΩ 1024-taps ...

Page 3

... SDA Serial Data Input/Output for 2-wire bus V System Ground SS WP Hardware Write Protect A1 Device Address for 2-wire bus NC No Connect R Wiper terminal of the Potentiometer W R High terminal of the Potentiometer H R Low terminal of the Potentiometer L V System Supply Voltage CC www.xicor.com CSP X9119 ...

Page 4

... Other Pins ONNECT No connect pins should be left open. These pins are used for Xicor manufacturing and testing purposes. PRINCIPLES OF OPERATION The X9119 is an integrated microcircuit incorporating a resistor array and its associated registers and counters and the serial interface communication between the host and the digitally controlled potentiometer ...

Page 5

... The X9119 will respond with an acknowledge after recognition of a start condition and its slave address and once again after successful receipt of the command byte. If the command is followed by a data byte the X9119 will respond with a final acknowledge. See Figure 2. www.xicor.com ...

Page 6

... REV 1.1.15 2/4/03 1 FLOW 1. ACK Polling Sequence Nonvolatile Write Command Completed EnterACK Polling Issue START Issue Slave Address ACK Returned? Further Operation? Issue Instruction Proceed www.xicor.com 8 9 ACKNOWLEDGE Issue STOP No Yes No Yes Issue STOP Proceed Characteristics subject to change without notice ...

Page 7

... The format is shown below in Table 2. Table 3 provides a complete summary of the instruction set opcodes. ID1 ID0 www.xicor.com . The R/W bit is the LSB and is be used YTE AND EGISTER ELECTION Internal Slave Address A1 A0 Register Selection RA 0 Characteristics subject to change without notice. ...

Page 8

... Data Registers can be used as regular memory locations for system parameters or user preference data. Bit 9–Bit 0 are used to store one of the 1024 wiper position (0 ~1023). www.xicor.com Operation Read the contents of the Wiper Counter Register Write new value to the Wiper Counter ...

Page 9

... Vcc is always more positive than or equal to the voltages There are no restrictions on the power-down L W condition. However, the datasheet parameters for the DCP do not apply until 1milisecond after V its final value R Internal Instruction Opcode Address www.xicor.com WCR3 WCR2 WCR1 Bit 3 Bit 2 Bit OWN EQUIREMENTS , R , and ...

Page 10

... REV 1.1.15 2/4/ Instruction Register Opcode Address Instruction Register Wiper Position Opcode Addresses (Sent by Slave on SDA Register Wiper Position (Sent by Master on SDA) Opcode Addresses Register Wiper Position Opcode Addresses (Sent by Slave on SDA www.xicor.com Wiper or Data Position Wiper Position (Sent by Slave on SDA ...

Page 11

... Notes: (1) “A2 ~ A0”: stand for the device addresses sent by the master. (2) WCRx refers to wiper position data in the Wiper Counter Register REV 1.1.15 2/4/03 Register Wiper Position or Data Addresses (Sent by Master on SDA Instruction Register Opcode Addresses S S HIGH-VOLTAGE A T WRITE CYCLE Instruction Register Opcode Addresses www.xicor.com Wiper Position or Data (Sent by Master on SDA ...

Page 12

... Pin -120 0.1 ±1 ±1.5 ±2.0 ±0.5 ±0.5 ±1.0 ±300 TOTAL 20 10/10/25 www.xicor.com Supply Voltage (V ) Limits CC 5V ±10% 2.7V to 5.5V Units Test Conditions kΩ 25°C, each pot mA Ω Wiper Current = ± 50µ Ω Wiper Current = ± 50µ ...

Page 13

... – 0 0.4 V Min. 100,000 100 Test Min. 0.2 www.xicor.com Test Conditions f = 400KHz +5.5V; SCL CC SDA = Open; (for 2-wire, Active, Read and Volatile Write States only 400KHz +5.5V; SCL CC SDA = Open; (for 2-wire, Active, Non-volatile Write State only +5.5V SDA = V CC ...

Page 14

... Bus Free Time (Prior to Any Transmission) BUF t A0, A1, A2 Setup Time SU:WPA t A0, A1, A2 Hold Time HD:WPA REV 1.1.15 2/4/ 10ns 867Ω SDA OUTPUT 100pF Parameter www.xicor.com SPICE Macromodel R TOTAL 10pF 10pF 25pF R W Min. Max. Units 400 ...

Page 15

... High High May change Will change from High to from High to Low Low Don’t Care: Changing: Changes State Not Allowed Known N/A Center Line is High Impedance www.xicor.com Typ. Max. Units Min. Max. Units 5 10 µ µ Characteristics subject to change without notice. ...

Page 16

... X9119 – Preliminary Information TIMING DIAGRAMS Start and Stop Timing (START) SCL t SU:STA SDA Input Timing t CYC SCL SDA Output Timing SCL SDA REV 1.1.15 2/4/ HD:STA SU:DAT t AA www.xicor.com (STOP) t SU:STO HIGH t LOW t t HD:DAT BUF t DH Characteristics subject to change without notice ...

Page 17

... X9119 – Preliminary Information XDCP Timing (for All Load Instructions) SCL SDA R W Write Protect and Device Address Pins Timing SCL SDA WP A0, A1 REV 1.1.15 2/4/03 LSB t WRL (START) (STOP) ... (Any Instruction) ... ... t t SU:WPA HD:WPA www.xicor.com (STOP Characteristics subject to change without notice. ...

Page 18

... S – (1 Offset Voltage Adjustment 100KΩ – + TL072 10KΩ 10KΩ 10KΩ +12V -12V REV 1.1.15 2/4/ Comparator with Hysterisis www.xicor.com + Two terminal Variable Resistor; Variable current Voltage Regulator 317 adj (REG) = 1.25V (1 adj 2 V – /( (max) ...

Page 19

... Application Circuits (Continued) Attenuator – -1/2 ≤ G ≤ +1/2 Inverting Amplifier – Function Generator – + frequency ∝ amplitude ∝ REV 1.1.15 2/4/ 10kΩ Equivalent L-R Circuit www.xicor.com Filter – 1/(2πRC – Leq >> – + Characteristics subject to change without notice ...

Page 20

... Side View c Ball Matrix NC* Vcc NC** D SCL WP NC* E SDA Vss * no-connect by specification only; bump is ...

Page 21

... Plastic, TSSOP, Package Code V14 .025 (.65) BSC .169 (4.3) .177 (4.5) .193 (4.9) .200 (5.1) .0075 (.19) .002 (.05) .0118 (.30) .006 (.15) .019 (.50) .029 (.75) Detail A (20X) www.xicor.com .252 (6.4) BSC .041 (1.05) .010 (.25) Gage Plane Seating Plane .031 (.80) .041 (1.05) Characteristics subject to change without notice ...

Page 22

... Xicor, Inc. makes no warranty of merchantability or fitness for any purpose. Xicor, Inc. reserves the right to discontinue production and change specifications and prices at any time and without notice. Xicor, Inc. assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xicor, Inc. product. No other circuits, patents, or licenses are implied. TRADEMARK DISCLAIMER: Xicor and the Xicor logo are registered trademarks of Xicor, Inc ...

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