參數(shù)資料
型號(hào)： UPD75P518K
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(yè)數(shù)： 20/40頁(yè)
文件大小： 320K
代理商： UPD75P518K
20
μ
PD75P048
SUBSYSTEM CLOCK OSCILLATOR CIRCUIT CHARACTERISTICS
(T
a
= -10 to +70
°
C, V
DD
= 2.7 to 6.0 V)
Oscillator
Recommended
Constants
Item
Conditions
MIN.
TYP.
MAX.
Unit
Crystal
Oscillation
frequency (f
XT
)
Note 1
32
32.768
35
kHz
Oscillation stabiliza-
tion time
Note 2
V
DD
= 4.5 to 6.0 V
1.0
2
s
10
s
External Clock
XT1 input frequency
(f
XT
)
Note 1
32
100
kHz
XT1 input high-,
low-level widths
(t
XTH
, t
XTL
)
5
15
μ
s
Note 1.
Indicates only the characteristics of the oscillator circuit. For instruction execution time, refer to AC
Characteristics.
2.
Time required for oscillation to stabilize after V
DD
has reached the minimum value of the oscillation
voltage range.
Caution When using the oscillation circuit of the subsystem clock, wire the portion enclosed in dotted line
in the figures as follows to avoid adverse influences on the wiring capacity:
Keep the wiring length as short as possible.
Do not cross the wiring over the other signal lines.
Do not route the wiring in the vicinity of lines through which a high alternating current flows.
Always keep the ground point of the capacitor of the oscillator circuit at the same potential as
V
DD
. Do not connect the ground pattern through which a high current flows.
Do not extract signals from the oscillation circuit.
The amplification factor of the subsystem clock oscillation circuit is designed to be low to reduce
the current dissipation and therefore, the subsystem clock oscillation circuit is influenced by noise
more easily than the main system clock oscillation circuit. When using the subsystem clock,
therefore, exercise utmost care in wiring the circuit.
XT1
XT2
XT1
XT2
R
C3
C4
V
DD
相關(guān)PDF資料
PDF描述
UPD75P54 4-Bit, Single-Chip, One-Time Programmable (OTP) CMOS Microcomputers With Serial I/O
UPD75P54CS 4-Bit, Single-Chip, One-Time Programmable (OTP) CMOS Microcomputers With Serial I/O
UPD75P54G 4-Bit, Single-Chip, One-Time Programmable (OTP) CMOS Microcomputers With Serial I/O
UPD75P56 4-Bit, Single-Chip, One-Time Programmable (OTP) CMOS Microcomputer With Comparator
UPD75P64 4-Bit, Single-Chip, One-Time Programmable (OTP) CMOS Microcomputers With Serial I/O
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD765AC 制造商:NEC Electronics Corporation 功能描述:DISK CONTROLLER, 40 Pin, DIP
UPD765AC-2 制造商:NEC Electronics Corporation 功能描述:DISK CONTROLLER, 40 Pin, DIP
UPD76F0107GC(A)-8EU-A 制造商:Renesas Electronics Corporation 功能描述:
UPD76F0108GC(A)-UEU-AX 制造商:Renesas Electronics Corporation 功能描述:
UPD76F0108GC(A)-UEU-SSA-AX 制造商:Renesas Electronics Corporation 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*