µPD75304B,75306B,75308B
FUNCTION OUTLINE (2/2)
Item
Function
• Watch timer
• 0.5 seconds time interval generation
• Count clock source: Main system clock and subsystem clock
switchable
3 channels
Timer
• Fast watch mode (3.9 ms time interval generation)
• Buzzer output possible (2 kHz)
• Three modes application possible
• 3-wire serial I/O mode
• 2-wire serial I/O mode
• SBI mode
8-bit serial interface
Bit sequential buffer
Clock output function
• LSB top/MSB top switchable
Special bit manipulation memory: 16 bits
• Perfect for remote control application
Timer/event counter output (PTO0): Arbitrary frequency square wave output
Clock output (PCL): Φ, 524, 262, 65.5 kHz (4.19 MHz operation)
Buzzer output (BUZ): 2 kHz (4.19 MHz or 32.768 kHz operation)
• External: 3
• Internal: 3
Vectored interrupt
Test input
• External: 1
• Internal: 1
• Main system clock oscillation ceramic/crystal oscillation circuit: 4.194304 MHz
• Subsystem clock oscillation crystal oscillation circuit: 32.768 kHz
System clock oscillator
Standby
STOP/HALT mode
• 80-pin plastic QFP (14 × 20 mm)
• 80-pin plastic QFP (■14 mm)
Package
• 80-pin plastic TQFP (fine pitch) (■12 mm)
4
NEC [ NEC ]
