X9421 Datasheet, PDF (4/21 Pages) Xicor Inc. – Single Digitally Controlled (XDCP) Potentiometer

X9421
PIN CONFIGURATION
S0
NC
NC
CS
SCK
SI
VSS
TSSOP
1
14
2
13
3
12
4 _X9421 11
5
10
6
9
7
8
V_CC
R_L/V_L
R_H/V_H
R_W/V_W
HOLD
A0
WP
NC
SO
NC
CS
SCK
SI
NC
VSS
SOIC
1
16
2
15
3
14
4 _X9421 13
5
12
6
11
7
10
8
9
V_CC
NC
R_L/V_L
R_H/V_H
R_W/V_W
HOLD
A0
WP
PIN ASSIGNMENTS
TSSOP pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SOIC pin
2
3
4
5
6
8
9
10
11
12
13
14
16
1
7
15
Symbol
SO
NC
NC
CS
SCK
SI
V_SS
WP
A0
HOLD
R_W / V_W
R_H / V_H
R_L / V_L
V_CC
NC
NC
NC
Brief Description
Serial Data Output
No Connect
No Connect
Chip Select
Serial Clock
Serial Data Input
System Ground
Hardware Write Protect
Device Address
Device select. Pause the serial bus.
Wiper Terminal of the Potentiometer.
High Terminal of the Potentiometer.
Low Terminal of the Potentiometer.
System Supply Voltage
No Connect
No Connect
No Connect
4
FN8196.1
September 23, 2005