參數(shù)資料
型號(hào): X9429YV14IZ-2.7
廠商: INTERSIL CORP
元件分類(lèi): 數(shù)字電位計(jì)
英文描述: Single Digitally Controlled Potentiometer
中文描述: 2.5K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO14
封裝: 4.40 MM, GREEN, PLASTIC, TSSOP-14
文件頁(yè)數(shù): 4/21頁(yè)
文件大小: 367K
代理商: X9429YV14IZ-2.7
4
FN8248.2
October 19, 2005
PIN CONFIGURATION
PIN ASSIGNMENTS
PIN DESCRIPTIONS
Host Interface Pins
Serial Clock (SCL)
The SCL input is used to clock data into and out of the
X9429.
Serial Data (SDA)
SDA is a bidirectional pin used to transfer data into
and out of the device. It is an open drain output and
may be wire-ORed with any number of open drain or
open collector outputs. An open drain output requires
the use of a pull-up resistor. For selecting typical
values, refer to the guidelines for calculating typical
values on the bus pull-up resistors graph.
Device Address (A
0
, A
2
, A
3
)
The Address inputs are used to set the least
significant 3 bits 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 initiate
communication with the X9429. A maximum of 8
devices may occupy the 2-wire serial bus.
Potentiometer Pins
R
H
/V
H
, R
L
/V
L
The R
H
/V
H
and R
L
/V
L
inputs are equivalent to the
terminal connections on either end of a mechanical
potentiometer.
TSSOP pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SOIC pin
1
2
3
4
5
6
8
9
10
11
12
13
14
16
15
7
Symbol
NC
NC
NC
A2
SCL
SDA
V
SS
WP
A0
A3
R
W
/ V
W
R
H
/ V
H
R
L
/ V
L
V
CC
NC
NC
Brief Description
No Connect
No Connect
No Connect
Device Address for 2-wire bus.
Serial Clock for 2-wire bus.
Serial Data Input/Output for 2-wire bus.
System Ground
Hardware Write Protect
Device Address for 2-wire bus.
Device Address for 2-wire bus.
Wiper Terminal of the Potentiometer.
High Terminal of the Potentiometer.
Low Terminal of the Potentiometer.
System Supply Voltage
No Connect
No Connect
V
CC
R
L
/V
L
VSS
1
2
3
4
5
6
7
8
14
13
12
11
10
9
NC
R
W
/V
W
A3
SCL
A2
TSSOP
R
H
/V
H
X9429
NC
NC
SDA
WP
A0
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SOIC
X9429
V
CC
R
L
/V
L
R
H
/V
H
R
W
/V
W
A3
WP
A0
NC
VSS
SCL
SDA
A2
NC
NC
NC
NC
X9429
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