CAT9554 Datasheet, PDF (16/28 Pages) Catalyst Semiconductor – Catalyst Semiconductor

digitally programmable potentiometers
CAT512O / CAT5121 / CAT5122
H
16-Tap MiniPot™ Digitally Programmable Potentiometers
VDD
with Increment/Decrement Interface
GND
Features
■ 0.3µA ultra-low supply current
CS
16-
UP/DOWN
POSITION
COUNTER
DECODER
U/D
■ 2-wire up/down serial interface
W
■ resistance values: 10kΩ, 50kΩ and 100kΩ
■ single-supply operation: 2.7 V to 5.5 V
■ glitchless switching between resistor taps
L
■ power-on reset to midscale
Package Information
■ 5- and 6-pin SC70 and SOT23 packages
Featured Products
CAT5259
256-Tap Quad Digitally Programmable Potentiometer
Features
RH0 RH1 RH2 RH3
■ four linear taper digitally programmable potentiometers
RW0
■ end-to-end resistance 50kΩ or 100kΩ
SCL
SDA
2-WIRE BUS
INTERFACE
WIPER
CONTROL
REGISTERS
■ low wiper resistance, typically 100Ω
RW1
■ non-volatile memory storage for up to four wiper settings
WP
for each potentiometer
RW2
A0
■ automatic recall of saved wiper settings at power up
A1
CONTROL
NONVOLATILE
■ 2.5 V to 6.0 V volt operation
A2
LOGIC
A3
DATA
REGISTERS
RW3
■ standby current less than 5µA
Package Information
RL0 RL1 RL2 RL3
■ 24-pin SOIC & TSSOP packages
ALOGEN ^FR
14
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