CDP1852CE

Overview

The CDP1852CE is a parallel, 8-bit, mode-programmable input/output port manufactured by Intersil. Designed for direct interface with CDP1800-Series microprocessors, it functions as an I/O port or address latch for multiplexed buses. The device utilizes static silicon-gate CMOS circuitry and operates on a single voltage supply. It supports full military temperature ranges from -55°C to +125°C. The component features handshaking via a service request flip-flop and offers low quiescent and operating power consumption.

Feature Summary

• Static silicon-gate CMOS technology for reliability
• Direct compatibility with CDP1800-Series microprocessors
• Programmable operation modes for flexible system integration

Applications

• General-purpose I/O expansion in stored-program systems
• Address latching for CDP1800 multiplexed address buses
• Peripheral interfacing requiring handshaking control

Procurement Notes

Verify the specific suffix 'CE' against official Intersil documentation to confirm package type and environmental rating. Ensure the source document explicitly lists CDP1852CE rather than generic family members like CDP1852 or CDP1852C. Confirm that the manufacturer designation matches Intersil Corporation records prior to acquisition.

Selection Notes

Select this component when designing systems based on the CDP1800 architecture requiring dedicated 8-bit parallel I/O handling. It is suitable for applications demanding high noise immunity and low power dissipation in harsh environments. Consider its compatibility with existing memory-mapped I/O schemes before choosing over general-purpose logic devices.

Part Context

The CDP1852 series belongs to the CDP1800 family of CMOS microcomputers developed by Intersil. These components were engineered to provide flexible peripheral interfaces for the broader 1800-series ecosystem. The CDP1852CE specifically represents a variant within this lineage, focusing on robust parallel data transfer capabilities for industrial and military-grade computing applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence with other CDP1852 variants (e.g., CDP1852D) only if pinout and electrical specifications match exactly.