CDP68HC68P1 Overview
® CDP68HC68P1 Data Sheet September 2003 FN1858.3 CMOS Serial 8-Bit Input/Output Port The CDP68HC68P1 is a serially addressed 8-bit Input/Output port that allows byte or individual bit control. It consists of three registers, an output buffer and control logic. Data is shifted in and out of the device via shift register that utilizes the SPI (Serial Peripheral Interface) bus.
CDP68HC68P1 Key Features
- Fully Static Operation
- Operating Voltage Range 3-6V
- patible with Intersil/Motorola SPI Bus
- 2 External Address Pins Tied to VDD or VSS to Allow Up to 4 Devices to Share the Same Chip Enable
- Versatile Bit-Set and Bit-Clear Capability
- Accepts Either SCK Clock Polarity
- SCK Voltage Level is Latched When Chip Enable Goes Active
- All Inputs are Schmitt-Trigger
- 8-Bit I/O Port
- Each Bit can be Individually Programmed as an Input or Output Via an 8-Bit Data Direction Register
