CXP87540

Features:

• A wide instruction set (213 instructions) which covers various types of data
- 16-bit operation multiplycation and division/boolean bit operation instructions
• Minimum instruction cycle During operation 326ns/12.288MHz
• Incorporated ROM capacity 32K bytes (CXP87532) 40K bytes (CXP87540)
• Incorporated RAM capacity 1344 bytes
• Peripheral functions
- Arithmetic coprocessor Multiplying with code, sum of products with code, high speed execution of many bits shift rotation operation
- A/D converter 8-bit, 8-channel, successive approximation system (Conversion time 13µs/12.288MHz) Incorporated 3-stage FIFO for A/D conversion data
- Serial interface Incorporated buffer RAM for data (1 to 128 bytes auto transfer) 2-channel
- Timer 8-bit timer, 8-bit timer/counter, 19-bit time base timer
- High precision timing pattern generator PPG (11 pins) 32-stage programmable
- PWM output 12-bit, 2-channel (Repeated frequency 48kHz) 8-bit, 3-channel (Repeated frequency 48kHz)
- Servo input control Capstan FG, Drum FG/PG, Reel FG input
- FRC capture unit Incorporated 28-bit and 8-stage FIFO
• Interruption 12 factors, 12 vectors, multi-interruption possible
• Standby mode Sleep/stop
• Package 100-pin plastic QFP/LQFP
• Piggyback/Evaluation CXP87500 100-pin ceramic QFP/LQFP


Pinout




Specifications

Item	Symbol	Rating	Unit	Remarks
Supply voltage	VDD	0.3 to +7.0	V	Incorporated PROM
	AVDD	AVss to +7.0*1	V
	AVSS	0.3 to +0.3	V
Input voltage	VIN	0.3 to +7.0*2	V
Output voltage	VOUT	0.3 to +7.0*2	mA	PH 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 pin*3: 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
		380		LQFP package

Description

The CXP87540 is a CMOS 8-bit microcomputer which consists of arithmetic coprocessor, A/D converter, serial interface, timer/counter, time base timer, vector interruption, high precision timing pattern generation circuit, PWM generator and the measuring circuit which measures signals of capstan FG, drum FG/PG, reel FG 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 this CXP87540 IC provides power on reset function, sleep/stop function which enables to lower power consumption.