參數(shù)資料
型號(hào): μPD780973(A)
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機(jī)微控制器
文件頁數(shù): 5/52頁
文件大?。?/td> 315K
代理商: ΜPD780973(A)
5
m
PD780973(A)
FUNCTION OVERVIEW
Item
Function
Internal
ROM
24 Kbytes
Memory
High-speed RAM
768 bytes
EEPROM
256 bytes
LCD display RAM
20
4 bits
General-purpose registers
8 bits
32 registers (8 bits
8 registers
4 banks)
Instruction cycle
0.24
m
s/0.48
m
s/0.95
m
s/1.91
m
s/3.81
m
s (at 8.38 MHz operation)
Instruction set
16-bit operation
Multiply/divide (8 bits
8 bits, 16 bits ÷ 8 bits)
Bit manipulate (set, reset, test, boolean operation)
I/O ports
(Including segment signal output pins)
Total
CMOS input
CMOS output
CMOS I/O
: 56
: 5
: 16
: 35
A/D converter
8-bit resolution
5 channels
Power fail detector
LCD controller/driver
Segment signal output
Common signal output
Bias
: Maximum 20
: Maximum 4
: 1/3
Serial interface
3-wire serial I/O mode
UART mode
: 1 channel
: 1 channel
Timer
16-bit timer
8-bit timer
8-bit timer/event counter
Watch timer
Watchdog timer
: 1 channel
: 1 channel
: 2 channels
: 1 channel
: 1 channel
Meter controller/driver
PWM output (9-bit resolution): 16
Sound generator
1 channel
Clock output
65.5 kHz, 131 kHz, 262 kHz, 524 kHz, 1.04 MHz, 2.09 MHz, 4.19 MHz, 8.38 MHz
(main system clock: at 8.38 MHz operation)
Vectored-
interrupt source
Maskable
Internal : 16
External : 3
Non-maskable
Internal : 1
Software
1
Supply voltage
V
DD
(SMV
DD
) = 5V±10%
Operation ambient temperature
T
A
= –40 to +85 °C
Package
80-pin plastic QFP (14
20 mm)
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