CXP88348

Features:

• A wide instruction set (213 instructions) which covers 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 40K bytes (CXP88340) 48K bytes (CXP88348)
• Incorporated RAM capacity 1376 bytes
• Peripheral functions
- A/D converter 8 bits, 12 channels, successive approximation system (Conversion time of 20µs/16MHz)
- Serial interface Incorporated 8-bit, 8-stage FIFO (Auto transfer for 1 to 8 bytes), 1 channel Incorporated buffer RAM (Auto transfer for 1 to 32 bytes), 1 channnel Incorporated two-wire 8-bit and 8-stage FIFO (Auto transfer for 1 to 8 bytes), 1 channel
- Timer 8-bit timer/counter, 2 channels 19-bit time-base timer 32kHz timer/counter
- High precision timing pattern generation PPG: Maximum of 19 pins 32 stages programmable circuit RTG: 5 pins, 1 channel 7-bit, 10-satge FIFO (RECCTL control/ATC control),
1 channel
- PWM/DA gate output PWM: 12 bits, 2 channels (Repetitive frequency 62.5kHz at 16MHz) DA gate pulse output: 13 bits, 2 channels
- Analog signal input circuit PBCTL amplifier circuit Reel FG comparator
- CTL write/rewrite circuit Recording current control circuit
- Servo input control Capstan FG, Drum FG/PG, CTL, Reel FG input
- VSYNC separator
- FRC capture unit Incorporated 26-bit and 8-stage FIFO
- PWM output 14 bits, 1 channel
- VISS/VASS circuit Pulse duty auto detection circuit
- Remote control receiving circuit 8-bit pulse measurement counter, 6-stage FIFO
- Tri-state output PPG output 2 pins
- High speed head switching circuit
• Interruption 22 factors, 15 vectors, multi-interruption possible
• Standby mode Sleep/stop
• Package 100-pin plastic QFP
• Piggy/evaluation chip CXP88400 100-pin ceramic PQFP


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	AMPVSS	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 +7.0*3	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 CXP88348 is a CMOS 8-bit microcomputer which consists of A/D converter, serial interface, timer/counter, time-base timer, high precision timing pattern generation circuit, PWM output, VISS/VASS circuit, 32kHz timer/counter, remote control receiving circuit, VSYNC separator and the measurement circuit
which measure signals of capstan FG and drum FG/PG 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, the CXP88348 provides sleep/stop functions which enable to lower power consumption.