Description

CXP5076/5078 is a CMOS 4-bit microcomputer which consists of 4-bit CPU, ROM, RAM, I/O port, 8-bit timer, 8-bit timer/counter, 18-bit time base timer, 8-bit serial I/O, vector interruption, power on reset function, liquid crystal displayer (LCD) controller/driver, D/A conversion 14-bit PWM output port, a remote control reception circuit with noise eliminating circuit, 3-bit A/D converters, a 32kHz timer/event counter and a power supply voltage detection reset function. They are integrated into a single chip with the standby function, etc. which are to be operated at a low power consumption.

Features

• Instruction cycle 1.9µs/4.19MHz 122 µs/32kHz (Possible to select with the program)

• ROM capacity 8192 × 8 bits (CXP5078) 6144 × 8 bits (CXP5076)

• RAM capacity 448 × 4 bits (Including stack, display area)

• 43 general purpose I/O ports

• 8 high current output ports

• LCD controller/driver (Possible to direct drive)

— Possible to select with the program the segment output of 16 to 32

— Possible to select with the program the duty of static, 1/2, 1/3 and 1/4

— Possible to select with the program the bias of 1/2, 1/3

• 14-bit PWM output for D/A conversion

• Remote control reception circuit

• 3-bit A/D converter (8 channels per circuit)

• 32kHz timer/event counter

• Power supply voltage detection reset function

• Low voltage operation (2.5V) ..... when operating in 122µs/32kHz

• Rich wake-up function

• 8-bit/4-bit variable serial I/O

• Arithmetic and logical operations possible between the entire ROM area, I/O area and the accumulator by means of the memory mapped I/O

• 8-bit timer, 8-bit timer/event counter and 18-bit time base timer, independently controlled

• 2 kinds of power down modes of sleep and stop

• Power on reset circuit (mask option)

• Provided with 80 pin plastic QFP

• Provided with 80 pin piggyback QFP (CXP5070)