CMOS Serial Digital Pulse Width Modulator IC
The CSS68HC68W1 is a serial digital Pulse Width Modulator IC that modulates an input clock to provide a variable frequency and variable duty-cycle output signal.

Three 8-bit registers (pulse width, frequency and control) are accessed via a 3-line serial interface. The digital PWM divides down a clock signal supplied via the CLK input as specified by the control, frequency, and pulse width data registers. The resultant output signal, with altered frequency and duty cycle, appears at the output of the device on the PWM pin.

Key Features
  • Direct Replacement for Intersil CDP68HC68W1
  • Programmable Frequency and Duty Cycle Output
  • Serial Bus Input; Compatible with Motorola/Intersil SPI Bus, Simple Shift-Register Type Interface
  • 8 Lead PDIP Package
  • Schmitt Trigger Clock Inputs
  • 4V to 6V Operation
  • -40°C to 85°C Temperature Range
  • 8MHz Clock Input Frequency

We aim to keep our online data up to date – please contact us should you wish to confirm the current version.

Part Number



CMOS Serial Digital Pulse Width Modulator IC