CXP87248A

Features:

• A wide instruction set (213 instructions) which cover various types of data
- 16-bit arithmetic instruction/multiplication and division instructions/boolean bit operation instruction
• Minimum instruction cycle During operation 333ns/12MHz (3.0 to 5.5V) During operation 250ns/16MHz (4.5 to 5.5V) During operation 122µs/32kHz
• Incorporated ROM capacity 40Kbytes (CXP87240A), 48Kbytes (CXP87248A)
• Incorporated RAM capacity 1376bytes
• Peripheral functions
- A/D converter 8-bit, 12-channel, successive approximation system (Conversion time 20.0µs/16MHz)
- Serial interface Incorporated buffer RAM (1 to 32 bytes auto transfer) 1-channel Incorporated 8-bit and 8-stage FIFO (1 to 8 bytes auto transfer) 1-channel
- Timer 8-bit timer, 8-bit timer/counter, 19-bit time base timer, 32kHz timer/counter
- High precision timing pattern generator PPG 19-pin 32-stage programmable RTG 5-pin 2-channel
- PWM/DA gate output PWM 12-bit, 2-channel (Repetitive frequency 62kHz/16MHz) DA gate pulse output 13-bit, 4-channel
- 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
- Remote control receiving circuit 8-bit pulse measuring counter, 6-stage FIFO
- General purpose prescaler 7-bit (SYNC1 input frequency divided, FRC capture possible)
- HSYNC counter 12-bit event counter (counts the SYNC1 input.)
• Interruption 22 factors, 15 vectors, multi-interruption possible
• Standby mode SLEEP/STOP
• Package 100-pin plastic QFP/LQFP
• Piggyback/evaluation chip CXP87200A 100-pin ceramic QFP/LQFP


Pinout




Description

The CXP87248A is a CMOS 8-bit microcomputer which consists of A/D converter, serial interface, timer/counter, time base timer, vector
interruption, high precision timing pattern generation circuit, PWM generator, PWM for tuner, VISS/VASS circuit, 32kHz timer/event counter, remote control receiving circuit, general purpose prescaler, HSYNC counter, VCR vertical sync separation circuit and the measuring 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 CXP87248A provides sleep/stop function which enables to lower power consumption and ultra-low speed instruction mode in 32kHz
operation.