參數(shù)資料
型號： UPD75068GB
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述： 4位單片機(jī)
文件頁數(shù)： 3/68頁
文件大?。?/td> 640K
代理商： UPD75068GB
3
μ
PD75064, 75066, 75068, 75064(A), 75066(A), 75068(A)
FUNCTION OVERVIEW
Item
Function
Instruction execution time
Main system clock : 0.95
μ
s, 1.91
μ
s, 15.3
μ
s (at 4.19 MHz)
Subsystem clock : 122
μ
s (at 32.768 kHz)
Internal memory
ROM
μ
PD75064: 4096
×
8 bits
μ
PD75066 : 6016
×
8 bits
μ
PD75068 : 8064
×
8 bits
RAM
512
×
4 bits
General register
When operating in 4 bits: 8
When operating in 8 bits: 4
I/O port
32
12
CMOS input
Of these, seven with software-specifiable on-chip
pull-up resistors
12
CMOS I/O
Software-specifiable on-chip pull-up resistors
Four pins can directly drive LEDs.
8
N-ch open-drain I/O
Breakdown voltage: 10 V
Mask-option-specifiable on-chip pull-up resistors
Can directly drive LEDs.
Timer
3 chs.
Timer/event counter
Basic interval timer : Applicable to watchdog timer
Watch timer : Capable of buzzer output
Serial interface
3-wire serial I/O mode
2-wire serial I/O mode
SBI mode
Bit sequencial buffer
16 bits
Clock output function
Φ
, f
x
/2
3
, f
x
/2
4
, f
x
/2
6
(Main system clock: at 4.19 MHz operation)
A/D converter
8-bit resolution x 8 channels
Low-power operation possible : V
DD
= 2.7 to 6.0 V
Vectored interrupt
External : 3 , Internal : 3
Test input
External : 1, Internal : 1
System clock oscillator
Ceramic/crystal oscillator for main system clock
Crystal oscillator for subsystem clock
Standby function
STOP / HALT mode
Operating ambient
temperature
–40 to +85
°
C
Operating supply
voltage
2.7 to 6.0 V
Package
42-pin plastic shrink DIP (600 mil)
44-pin plastic QFP (10 x 10 mm)
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