Timer ICs / ASSPs

Programmable Port Controller S-7760A

The S-7760A is a programmable port controller IC comprised of E2PROM, a control circuit for data output, a circuit to prevent malfunction caused by low power supply voltage and others. This IC operates at 400 kHz and interfaces with exteriors via I2C-bus, controls an 8ch digital output with a serial signal. Among the digital output ports of 8 channels, the lower 4 channels have a timer function so that at each port, users are able to set the default value and inverted delay time. In the higher 4 channels, setting the fixed output is available at each port. The default value is maintained despite power-off because this IC has an E2PROM. The S-7760A is able to be used to control ON/OFF for the chips surrounding MPU and to output the default data that devices fundamentally have.


Operating voltage range
2.3 to 4.5 V
8ch digital output
Higher 4 channels; fixed output/lower 4 channels; timer action
Operating frequency of I2C-bus interface
400 kHz
Low current consumption at standby
10.0 µA Max. (Vcch = 4.5 V)
Built-in E2PROM circuit
E2PROM endurance
105 cycles / word*1 (at −40 to +85 °C)
E2PROM data retention
10 years (after rewriting 105 cycles / word)
Write protect function in E2PROM
Function to prevent malfunction during low power supply voltage operation
Lead-free, halogen-free

*1. For each address (Word: 8 bits)


  • IoT
  • Wearable device
  • Mobile phone
  • Portable communication device
  • Digital still camera
  • Digital video camera