參數(shù)資料
型號(hào)： X9252YV24IZ-2.7
廠商： INTERSIL CORP
元件分類(lèi)： 數(shù)字電位計(jì)
英文描述： Low Power + Quad 256-Tap + 2-Wire Bus + Up/Down Interface
中文描述： QUAD 2.8K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO24
封裝： ROHS COMPLIANT, PLASTIC, TSSOP-24
文件頁(yè)數(shù)： 9/21頁(yè)
文件大?。?/td> 126K
代理商： X9252YV24IZ-2.7
9 of 21
REV 1.4.1 7/29/03
www.xicor.com
X9252
PIN DESCRIPTIONS
Bus Interface Pins
S
ERIAL
D
ATA
I
NPUT
/O
UTPUT
(SDA)
The SDA is a bidirectional serial data input/output pin for
the 2-wire interface. It receives device address, operation
code, wiper register address and data from a 2-wire
external master device at the rising edge of the serial
clock SCL, and it shifts out data after each falling edge of
the serial clock SCL.
SDA requires an external pull-up resistor, since it’s an
open drain output.
S
ERIAL
C
LOCK
(SCL)
This input is the serial clock of the 2-wire and Up/Down
interface.
D
EVICE
A
DDRESS
(A2–A0)
The Address inputs are used to set the least significant
3 bits of the 8-bit 2-wire interface slave address. A
match in the slave address serial data stream must be
made with the Address input pins in order to initiate
communication with the X9252. A maximum of 8
devices may occupy the 2-wire serial bus.
C
HIP
S
ELECT
(CS)
When the CS pin is low, increment or decrement
operations are possible using the SCL and U/D pins.
The 2-wire interface is disabled at this time. When CS
is high, the 2-wire interface is enabled.
U
P
OR
D
OWN
C
ONTROL
(U/D)
The U/D input pin is held HIGH during increment oper-
ations and held LOW during decrement operations.
DCP S
ELECT
(DS1-DS0)
The DS1-DS0 select one of the four DCPs for an Up/
Down interface operation.
H
ARDWARE
W
RITE
P
ROTECT
I
NPUT
(WP)
When the WP pin is set low, “write” operations to non
volatile DCP Data Registers are disabled. This
includes both 2-wire interface non-volatile “Write”, and
Up/Down interface “Store” operations.
DCP Pins
R
H0
, R
L0
, R
H1
, R
L1
, R
H2
, R
L2
, R
H3
,
AND
R
L3
These pins are equivalent to the terminal connections
on mechanical potentiometers. Since there are 4
DCPs, there is one set of R
H
and R
L
for each DCP.
R
W0
, R
W1
, R
W2
,
AND
R
W3
The wiper pins are equivalent to the wiper terminal of
mechanical potentiometers. Since there are four
DCPs, there are 4 R
W
pins.
相關(guān)PDF資料
PDF描述
X9252WV24IZ-2.7 KIT RF SHIELD LARGE MULTI-HEIGHT
X9252UV24IZ-2.7 KIT RF SHIELD SMALL MULTI-HEIGHT
X9258UV24I-2.7 Quad Digital Controlled Potentiometers (XDCP)
X9258TV24I-2.7 Quad Digital Controlled Potentiometers (XDCP)
X9258UB24 Quad Digital Controlled Potentiometers (XDCP)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
X9258 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Low Noise/Low Power/2-Wire Bus/256 Taps
X9258)06 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Quad Digital Controlled Potentiometers
X9258_11 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Quad Digital Controlled Potentiometers(XDCP?)
X9258_13 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Low Noise/Low Power/2-Wire Bus/256 Taps
X9258TB24 制造商:XICOR 制造商全稱(chēng):Xicor Inc. 功能描述:Quad Digital Controlled Potentiometers (XDCP)
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