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參數(shù)資料
| 型號： | UPD78F0034AYGB-8EU |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 26/66頁 |
| 文件大?。?/td> | 565K |
| 代理商： | UPD78F0034AYGB-8EU |
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μ
PD78F0034A, 78F0034AY
26
Data Sheet U14040EJ4V0DS
Subsystem Clock Oscillator Characteristics (T
A
= –40 to +85
°
C, V
DD
= 1.8 to 5.5 V)
Resonator
Recommended Circuit
Parameter
Conditions
MIN.
TYP.
MAX.
Unit
Crystal
resonator
Oscillation
frequency (f
XT
)
Note 1
32
32.768
35
kHz
Oscillation
stabilization time
Note 2
V
DD
= 4.0 to 5.5 V
1.2
2
s
V
DD
= 1.8 to 5.5 V
10
External
clock
X1 input
frequency (f
XT
)
Note 1
32
38.5
kHz
X1 input high-/low-level
width (t
XTH
, t
XTL
)
5
15
μ
s
Notes 1.
Indicates only oscillator characteristics. Refer to
AC Characteristics
for instruction execution time.
2.
Time required to stabilize oscillation after V
DD
reaches oscillator voltage MIN.
Cautions 1. When using the subsystem clock oscillator, wire as follows in the area enclosed by the
broken lines in the above figures to avoid an adverse effect from wiring capacitance.
Keep the wiring length as short as possible.
Do not cross the wiring with the other signal lines.
Do not route the wiring near a signal line through which a high fluctuating current flows.
Always make the ground point of the oscillator capacitor to the same potential as V
SS1
.
Do not ground the capacitor to a ground pattern through which a high current flows.
Do not fetch signals from the oscillator.
2. The subsystem clock oscillator is designed as a low-amplitude circuit for reducing current
consumption, and is more prone to malfunction due to noise than the main system clock
oscillator. Particular care is therefore required with the wiring method when the subsystem
clock is used.
XT1
XT2
μ
PD74HCU04
C3
XT2
XT1V
PP
R2
C4
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD78F0034AYGB-8EU-A | 制造商:Renesas Electronics Corporation 功能描述: 制造商:Renesas Electronics Corporation 功能描述:MCU 8-bit 78K 78K0 CISC 32KB Flash 5V 64-Pin LQFP |
| UPD78F0034AYGC-8BS | 制造商:NEC Electronics Corporation 功能描述:MicroController, 8-Bit, 64 Pin, Plastic, QFP |
| UPD78F0034AYGC-8BS-A | 制造商:Renesas Electronics Corporation 功能描述: 制造商:Renesas Electronics Corporation 功能描述:MCU 8-bit 78K0 CISC 32KB Flash 5V 64-Pin LQFP |
| UPD78F0034AYGK-9ET-A | 制造商:Renesas Electronics Corporation 功能描述: 制造商:Renesas Electronics Corporation 功能描述:MCU 8-bit 78K CISC 32KB Flash 5V 64-Pin TQFP |
| UPD78F0034BGB-8EU-A | 制造商:Renesas Electronics Corporation 功能描述: 制造商:Renesas Electronics Corporation 功能描述:MCU 8-bit 78K CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP Cut Tape 制造商:Renesas Electronics Corporation 功能描述:MCU 8-bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP |
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