ISL95310 Intersil Corporation, ISL95310 Datasheet - Page 2

• Manufacturer Part Number: ISL95310
• Description: 128 Taps Up/Down Interface
• Manufacturer: Intersil Corporation

Block Diagram
Pin Descriptions
Device Select
PIN NUMBER
Increment
Up/Down
10
1
2
3
4
5
6
7
8
9
(U/D)
(INC)
(CS)
SIMPLE BLOCK DIAGRAM
CONTROL
MEMORY
GND
AND
VCC
SYMBOL
GND
V
U/D
INC
R W
NC
R H
CS
R L
V+
CC
2
V+
Controls the direction of wiper movement and whether the counter is incremented or decremented
Ground
Positive logic supply voltage
Chip select; the device is selected when the CS input is LOW; also used to initiate a nonvolatile store
No connect; pin is to be left unconnected
A fixed terminal for one end of the potentiometer resistor
The wiper terminal which is equivalent to the movable terminal of a potentiometer
A fixed terminal for one end of the potentiometer resistor
Positive bias voltage for the potentiometer wiper control
Increment input; negative edge triggered
R
R
R
W
H
L
U/D
INC
CS
ISL95310
NONVOLATILE
STORE AND
CIRCUITRY
COUNTER
UP/DOWN
CONTROL
MEMORY
RECALL
7-BIT
7-BIT
DETAILED BLOCK DIAGRAM
DECODER
DESCRIPTION
ONE
128
OF
127
126
125
124
2
1
0
TRANSFER
GATES
RESISTOR
ARRAY
R
R
R
May 6, 2005
H
L
W
FN8083.0