UPD75048CW 查看數據表（PDF） - NEC => Renesas Technology
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UPD75048CW Datasheet PDF : 68 Pages
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µPD75048
FUNCTIONAL OUTLINE
Item
Instructions
Instruction Exe-
cution Time
Internal Memory
EEPROM
General-Purpose
Register
Accumulator
Instruction Set
I/O Line
Timer
8-bit Serial
Interface
Bit Sequential
Buffer
Clock Output
Function
Function
41
• With main system clock: 0.95, 1.91, 15.3 µs (at 4.19 MHz)
• With subsystem clock: 122 µs (at 32.768 kHz)
Program memory (ROM) : 8064 x 8 bits
Data memory (RAM) : 512 x 4 bits
Data memory (EEPROM) : 1024 x 4 bits
• Retains data in case of power failure
• Number of writes: 100,000 times
• Write time: 10 ms
• Write end, overwrite interrupt functions
• 4-bit manipulation: 8 (X, A, B, C, D, E, H, L)
• 8-bit manipulation: 4 (XA, BC, DE, HL)
• Bit accumulator (CY)
• 4-bit accumulator (A)
• 8-bit accumulator (XA)
• Abundant bit manipulation instructions
• Efficient 4-bit data manipulation instructions
• 8-bit data manipulation instructions
• GETI instruction executing 2-/3-byte instruction with a single byte
12 Input pin
Via software,
w/pull-up resistor: 27
48
24 CMOS I/O pin (direct LED drive: 4) w/pull-down resistor: 4
12 Medium-voltage N-ch
open-drain I/O (direct LED drive)
By mask option,
w/pull-up resistor: 12
• 8-bit timer/event counter
• Clock source: 4 steps
• Can count events
• 8-bit basic interval timer
• Reference time generation: 1.95, 7.82, 31.3, 250 ms (at 4.19 MHz)
• Can be used as watchdog timer
4 chs
• Clock timer
• Generates 0.5-second time intervals
• Count clock source: main system clock or subsystem clock (selectable)
• Clock fast forward mode (generates 3.9-ms time intervals)
• Buzzer output (2, 4, 32 kHz)
• Multi-function timer
Can be used as:
• 8-bit timer
• PWM output
• 16-bit free-running timer
• Counter for 16-bit integral A/D converter
• Three modes:
• 3-line serial I/O mode ... MSB/LSB first (selectable)
• 2-line serial I/O mode
• SBI mode
Special bit manipulation memory: 16 bits
• Ideal for remote controller
Timer/event counter output (PTO0): output of square wave at specified frequency
Clock output (PCL): Φ/, fx/23, fx/24, fx/26
Buzzer output (BUZ): 2, 4, 32 kHz (with main system clock or subsystem clock)
2
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