CAT5132ZI-50-GT3 ON Semiconductor

CAT5132 16 Volt Digital Potentiometer (POT) with 128 Taps 2 and I C Interface CAT5132 V CC V+ SDA 127 R H SCL CONTROL LOGIC AND ADDRESS DECODE A0 A1 128 TAP POSITION DECODE CONTROL 7 BIT 7 BIT WIPER NONVOLATILE CONTROL MEMORY REGISTER REGISTER (WCR) (DR) 0 R L R Figure 1. Block Diagram W Table 1. PIN FUNCTION DESCRIPTION Pin No. Pin Name Description 1 SDA Serial Data Input/Output Bidirectional Serial Data pin used to transfer data into and out of the CAT5132. This is an Open-Drain I/O and can be wire ORd with other Open-Drain (or Open Collector) I/Os. 2 GND Ground 3 V Digital Supply Voltage (2.7 V to 5.5 V) CC 2 4 A1 Address Select Input to select slave address for I C bus. 2 5 A0 Address Select Input to select slave address for I C bus. 6 R High Reference Terminal for the potentiometer H 7 R Wiper Terminal for the potentiometer W 8 R Low Reference Terminal for the potentiometer L 9 V+ Analog Supply Voltage for the potentiometer (+8.0 V to 16.0 V) 2 10 SCL Serial Bus Clock input for the I C Serial Bus. This clock is used to clock all data transfers into and out of the CAT5132 Table 2. ABSOLUTE MAXIMUM RATINGS Rating Value Unit Temperature Under Bias 55 to +125 C Storage Temperature 65 to +150 C Voltage on any SDA, SCL, A0 & A1 pins with respect to Ground (Note 4) 0.3 to V + 0.3 V CC Voltage on R , R & R pins with respect to Ground V+ H L W V with respect to Ground 0.3 to +6 V CC V+ with respect to Ground 0.3 to +16.5 V Wiper Current (10 sec) 6 mA Lead Soldering temperature (10 sec) +300 C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 4. Latch-up protection is provided for stresses up to 100 mA on address and data pins from 0.3 V to V +0.3 V. CC Table 3. RECOMMENDED OPERATING CONDITIONS Rating Value Unit V +2.7 to +5.5 V CC V+ +8.0 to +16 V Operating Temperature Range 40 to +85 C