UPD784225中文资料瑞萨数据手册PDF规格书

The µPD784224 and 784225 are products of the µPD784225 Subseries in the 78K/IV Series. Besides a highspeed and high performance CPU, these controllers have ROM, RAM, I/O ports, 8-bit resolution A/D and D/A converters, timers, serial interfaces, a real-time output port, interrupt functions, and various other peripheral

hardware.

FEATURES

• I2C bus

• ROM correction

• Inherits peripheral functions of µPD780058Y Subseries

• Minimum instruction execution time

160 ns (main system clock fXX = 12.5 MHz)

61 µs (subsystem clock fXT = 32.768 kHz)

• I/O port: 67 pins

• Timer/counter: 16-bit timer/counter × 1 unit 8-bit timer/counter × 4 units

• Serial interface: 3 channels

UART/IOE (3-wire serial I/O): 2 channels

CSI (3-wire serial I/O, multi-master supporting I2C busNote): 1 channel

Note µPD784225Y Subseries only

• Standby function

HALT/STOP/IDLE mode

In power-saving mode: HALT/IDLE mode (with subsystem clock)

• Clock division function

• Watch timer: 1 channel

• Watchdog timer: 1 channel

• Clock output function fXX, fXX/2, fXX/22, fXX/23, fXX/24, fXX/25, fXX/26, fXX/27, fXT selectable

• Buzzer output function fXX/210, fXX/211, fXX/212, fXX/213 selectable

• A/D converter: 8-bit resolution × 8 channels

• D/A converter: 8-bit resolution × 2 channels

• Supply voltage: VDD = 1.8 to 5.5 V

APPLICATION FIELD

Car audio, portable audio, telephones, etc.