X9251 - Renesas

X9251 Quad Digitally Potentiometers

PIN SYMBOL FUNCTION 1 SO Serial Data Output for SPI bus 2 A0 Device Address for SPI bus (see Note 4) 3 RW3 Wiper Terminal of DCP3 4 RH3 High Terminal of DCP3 5 RL3 Low Terminal of DCP3 7 VCC System Supply Voltage 8 RL0 Low Terminal of DCP0 9 RH0 High Terminal of DCP0 10 RW0 Wiper Terminal of DCP0 11 CS SPI bus. Chip Select active l.

Features

• Four potentiometers in one package
• 256 resistor taps
  –0.4% resolution
• SPI serial interface for write, read, and transfer operations of the potentiometer
• Wiper resistance: 100Ω typical at VCC = 5V
• 4 Nonvolatile data registers for each potentiometer
• Nonvolatile storage of multiple wiper positions
• Standby current <5µA max
• VCC: 2.7V to 5.5V operation
• 50kΩ version of total resistance
• 100 year data retention
• Single supply version of X9250
• Endurance: 100,000 data changes per bit per register
• 24 Ld TSSOP
• Low power CMOS
• Pb-free (RoHS compliant) VCC HOLD A1 A0 SO SI SCK CS.