DataSheetWiki


X9252 fiches techniques PDF

Xicor - Quad Digitally-Controlled (XDCP) potentiometer

Numéro de référence X9252
Description Quad Digitally-Controlled (XDCP) potentiometer
Fabricant Xicor 
Logo Xicor 





1 Page

No Preview Available !





X9252 fiche technique
New Feature
Dual Interface
Low Power + Quad 256-tap +
2-Wire bus + Up/Down interface
Quad Digitally-Controlled (XDCPTM) Potentiometer
X9252
FEATURES
• Quad solid state potentiometer
• 256 wiper tap points–0.4% resolution
• 2-wire serial interface for Write, Read, and
transfer operations of the potentiometer
• Up/down interface for individual potentiometers
• Wiper resistance: 40typical
• Non-volatile storage of wiper positions
• Power On Recall. Loads saved wiper position on
Power-Up.
• Standby current < 20µA Max
• Maximum wiper current: 3mA
• VCC: 2.7V to 5.5V operation
• 2.8k,10k, 50k, 100kversion of total pot
resistance
• Endurance: 100, 000 data changes per bit per
register
• 100 yr. data retention
• 24-Lead TSSOP
DESCRIPTION
The X9252 integrates 4 digitally controlled potentio-
meters (XDCP) on a monolithic CMOS integrated
circuit.
The digitally controlled potentiometers are imple-
mented using 255 resistive elements in a series array.
Between each pair of elements are tap points con-
nected to wiper terminals through switches. The posi-
tion of each wiper on the array is controlled by the user
through the Up/Down (U/D) or 2-wire bus interface.
The wiper of each potentiometer has an associated
volatile Wiper Counter Register (WCR) and four non-
volatile Data Registers (DRs) that can be directly writ-
ten to and read by the user. The contents of the WCR
controls the position of the wiper on the resistor array
though the switches. At power-up, the device recalls
the contents of the default data registers DR00, DR10,
DR20, DR30, to the corresponding WCR.
Each DCP can be used as a three-terminal potentio-
meter or as a two terminal variable resistor in a wide
variety of applications including the programming of
bias voltages, the implementation of ladder networks,
and three resistor programmable networks.
FUNCTIONAL DIAGRAM
A2
A1
A0
SDA
SCL
DS0
DS1
CS
U/D
VCC
2-Wire
Interface
Up-Down
Interface
POWER UP,
INTERFACE
CONTROL
AND
STATUS
VSS
RH0
RH1
RH2
RH3
WCR0
DR00
DR01
DR02
DR03
DCP0
WCR1
DR10
DR11
DR12
DR13
DCP1
WCR2
DR20
DR21
DR22
DR23
DCP2
WCR3
DR30
DR31
DR32
DR33
DCP3
WP
RW0 RL0
RW1 RL1
RW2 RL2
RW3 RL3
REV 1.4.1 7/29/03
www.xicor.com
1 of 21

PagesPages 21
Télécharger [ X9252 ]


Fiche technique recommandé

No Description détaillée Fabricant
X9250 Quad Digitally Controlled Potentiometers (XDCP) Xicor
Xicor
X9250 Quad Digitally Controlled Potentiometers Intersil Corporation
Intersil Corporation
X9251 Quad Digitally-Controlled (XDCP) Potentiometer Xicor
Xicor
X9251 Quad Digitally-Controlled Potentiometer Intersil Corporation
Intersil Corporation

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche