180x

                            1802

RCA

The CPU was used in the famous COSMAC microcomputer kit as well as in some video games from RCA and Radio Shack. Besides the chip is the heart of the Voyager, Viking and Galileo (along with some AMD 2900 bit slice processors) probes. One reason for this is that a version of the 1802 used silicon on sapphire (SOS) technology, which leads to radiation and static resistance, ideal for space operation.

One-chip implementation of previous two-chip CPU: CDP1801 and CDP18101; CMOS technology; single +10 V power supply; low power consumption; standard devices operate in full military specification temperature (-55° to + 125 °C)

Examples






Package

                            1804

RCA

Temperature range -40° to +85°C; 123 instructions-upwards software and pin compatible with 1802, 1805 and 1806; BCD arithmetic instructions; Low-power IDLE mode; 64K-byte memory address capability; 2 Kbytes of on-chip ROM; 64 bytes of on-chip RAM; 16 x 16 matrix of on-board regisetrs; on-chip crystal or RC controlled oscillator; 8-bit counter / timer; DC operating voltage range 4 V to 6.5 V
The 1804 software enhancements include 32 more instructions than the 1802; the 32 additional software instructions include subroutine call and return capability, enhanced data transfer manipulation, counter / timer control, improved interrupt handling, single instruction loop counting and BCD arithmetic.

not known

see 1802

                            1805

RCA

Temperature range -40° to +85°C; 123 instructions-upwards software and pin compatible with 1802 (except for terminal 16); BCD arithmetic instructions; Low-power IDLE mode; 64K-byte memory address capability; 64 bytes of on-chip RAM; 16 x 16 matrix of on-board regisetrs; on-chip crystal or RC controlled oscillator; 8-bit counter / timer; DC operating voltage range 4 V to 6.5 V
The 1805 software enhancements include 32 more instructions than the 1802; the 32 additional software instructions include subroutine call and return capability, enhanced data transfer manipulation, counter / timer control, improved interrupt handling, single instruction loop counting and BCD arithmetic; the 1805 is identical to the 1804 except for the on-chip memory and may be used for 1804 development purposes.

not known

see 1802

                            1806

RCA

Temperature range -40° to +85°C; 123 instructions-upwards software and pin compatible with 1802 (except for terminal 16); BCD arithmetic instructions; Low-power IDLE mode; 64K-byte memory address capability; 16 x 16 matrix of on-board regisetrs; on-chip crystal or RC controlled oscillator; 8-bit counter / timer; DC operating voltage range 4 V to 6.5 V
The 1806 software enhancements include 32 more instructions than the 1802; the 32 additional software instructions include subroutine call and return capability, enhanced data transfer manipulation, counter / timer control, improved interrupt handling, single instruction loop counting and BCD arithmetic; the 1806 is identical to the 1804 except for the on-chip memory and may be used for 1804 development purposes.

not known

see 1802

Self-contained, powerful debugging tool for use with any system based on the CDP1802 Microprocessor. It permits in-circuit debugging in real time so that both hardware and software problems can be efficiently screened. The Micromonitor is interposed between the system under test and the system's CDP1802 CPU, giving the user control of both hardware interfaces and execution of the user program. The Micromonitor, although controlled by its own internal microprocessor, uses the microprocessor, power supply, clock, memory, and other components of the system under test to run the user progrm. Thus, it is not an emulator, but a monitor of system performance. It has been designed to induce a minimal effect on the system under test and provides a reliable measure of true system performance.