CXP88740

Features:

• A wide instruction set (213 instructions) which cover various types of data
- 16-bit arithmetic/multiplication and division/boolean bit operation instructions
• Minimum instruction cycle 250ns at 16MHz operation 122µs at 32kHz operation
• Incorporated ROM capacity 32K bytes (CXP88732) 40K bytes (CXP88740) 48K bytes (CXP88748)
• Incorporated RAM capacity 1344 bytes (including PPG RAM)
• Peripheral function
- A/D converter 8 bits, 14 channels, successive approximation system (Conversion time of 20µs/16MHz)
- Serial interface Incorporated 8-bit, 8-stage FIFO for data (Auto transfer for 1 to 8 bytes), 1 channel 8-bit clock sync type, 1 channel
- Timer 8-bit timer/counter, 2 channels 19-bit time base timer 32kHz timer/counter
- High precision timing pattern generation PPG 19 pins 32-stage programmable circuit RTG 5 pins, 1 channel 5-bit, 8-satge FIFO (RECCTL control), 1channel
- PWM/DA gate output 12 bits, 2 channels (Repetitive frequency 62.5kHz/16MHz) DA gate pulse output, 13 bits, 2 channels
- Analog signal input circuit Capstan FG amplifier circuit Drum FG amplifier circuit Drum PG amplifier circuit PBCTL amplifier circuit
- CTL write/rewrite circuit Recording current control circuit
- Servo input control Capstan FG, Drum FG/PG, CTL input
- VSYNC separator
- FRC capture unit Incorporated 26-bit and 8-stage FIFO
- PWM output 14-bit, 1 channel
- VISS/VASS circuit Pulse duty auto detection circuit
- 32kHz timer/event counter 32kHz oscillation circuit, ultra-low speed instruction mode
- Remote control reception circuit 8-bit pulse measurement counter, 6-stage FIFO
- Tri-state output PPG 1 pin, output 8 pins
- Pseudo HSYNC output function
- High speed head switching circuit
• Interruption 20 factors, 15 vectors, multi-interruption possible
• Standby mode SLEEP/STOP
• Package 100-pin plastic QFP
• Piggyback/evaluation chip CXP88800 100-pin ceramic QFP


Pinout

Specifications

	Item	Symbol	Rating	Unit	Remarks
	Supply voltage	VDD	0.3 to +7.0	V
		AVDD	AVss to +7.0*1	V
		AVSS	0.3 to +0.3	V
		AMPVDD	AMPVSS to +7.0*2	V
		AMPVSS	0.3 to +0.3	V
	Input voltage	VIN	0.3 to +7.0*3	V
	Output voltage	VOUT	0.3 to +7.0*3	V
	Medium drive output voltage	VOUTP	0.3 to +15.0	V	Port H (PH7 to PH4) pin
	High level output current	IOH	5	mA
	High level total output current	IOH	50	mA	Total of output pins
	Low level output current	IOL	15	mA	Other than large current output ports (value per pin)
		IOLC	20	mA	Large current output port*4 (value per pin)
	Low level total output current	IOL	130	mA	Total of output pins
	Operating temperature	Topr	20 to +75	°C
	Storage temperature	Tstg	55 to +150	°C
	Allowable power dissipation	PD	600	mW	QFP package type

Description

The CXP88740 is a CMOS 8-bit microcomputer which consists of A/D converter, serial interface, timer/counter, time base timer, high precision timing pattern generation circuits, PWM output, VISS/ VASS circuit, 32kHz timer/counter, remote control receiving circuit, VSYNC separator and the measurement circuit which measure signals of capstan FG amplifier and drum FG/PG amplifier and other servo systems, as well as basic configurations like 8-bit CPU, ROM, RAM and I/O port. They are integrated into a single chip.
Also, CXP88740 provides sleep/stop function which enables to lower power consumption.