CXP82840

Features:

• Wide-range instruction system (213 instructions) to cover various types of data
- 16-bit arithmetic/multiplication and division/boolean bit operation instructions
• Minimum instruction cycle 400ns at 10MHz operation(122µs at 32kHz operation)
• Incorporated ROM capacity 32K bytes (CXP82832) 40K bytes (CXP82840) 52K bytes (CXP82852) 60K bytes (CXP82860)
• Incorporated RAM capacity 1536 bytes (including fluorescent display area)
• Peripheral functions
- A/D converter 8 bits, 8 channels, successive approximation method (Conversion time of 32µs/10MHz)
- Serial interface 8-bit, 8-stage FIFO incorporated (Auto transfer for 1 to 8 bytes), 1 channel 8-bit clock synchronized type, 1 channel
- Timers 8-bit timer, 8-bit timer/counter, 19-bit time base timer 16-bit capture timer/counter, 32kHz timer/counter
- Fluorescent display panel controller/driver Supports the universal grid fluorescent display panel. High voltage drive output port of 56 pins (40V) Maximum of 640 segments display possible Display timing number of 1 to 20 Dimmer function Incorporated pull-down resistor (Mask option) Hardware key scan function (Maximum of 16*8 key matrix supportable)
- Remote control reception circuit 8-bit pulse measurement counter, 6-stage FIFO
- PWM output 14 bits, 1 channel
• Interruption 16 factors, 15 vectors, multi-interruption possible
• Standby mode SLEEP/STOP
• Package 100-pin plastic QFP
• Piggyback/evaluation chip CXP82800 100-pin ceramic QFP


Pinout

Specifications

Item	Symbol	Rating	Unit	Remarks
Supply voltage	VDD	0.3 to +7.0	V
A/D converter GND voltage	AVSS	0.3 to +0.3	V
A/D converter reference voltage	AVREF	0.3 to +7.0*1	V
FDP display supply voltage	VFDP	40*2 to +7.0*1	V
Input voltage	VIN	0.3 to +7.0*1	V
Output voltage	VOUT	0.3 to +7.0*1	V
Display output voltage	VOD	40*2 to +7.0*1	V
High level output current	IOH	5	mA	All pins excluding display outputs*3 (value per pin)
	IODH1	15	mA	Display outputs A20 to A55 (value per pin)
	IODH2	50	mA	Display outputs G0/A0 to G15/A15, and A16 to A19 (value per pin)
High level total output current	IOH	30	mA	Total for all pins excluding display outputs
	IODH	120	mA	Total of all output pins
Low level output current	IOL	15	mA	Port (value per pin)
	IOLC	20	mA	Large current port (value per pin)*4
Low level total output current	IOL	100	mA	Total for all outputs
Operating temperature	Topr	20 to +75	°C
Storage temperature	Tstg	55 to +150	°C
Allowable power dissipation	PD	600	mW

Description

The CXP82840 is a CMOS 8-bit single chip microcomputer integrating on a single chip an A/D converter, serial interface, timer/counter,time base timer, capture timer/counter, fluorescent display panel controller/driver, remote control reception circuit, and PWM output besides the basic configurations of 8-bit CPU, ROM, RAM, and I/O port.

The CXP82840 also provides sleep/stop function that enables lower power consumption.