參數(shù)資料
型號(hào): UPD780032AY
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位單晶片微控制器
文件頁數(shù): 18/70頁
文件大小: 527K
代理商: UPD780032AY
18
μ
PD780031AY, 780032AY, 780033AY, 780034AY
Data Sheet U14045EJ1V0DS00
5.2 Clock Generator
A system clock generator is incorporated.
The minimum instruction execution time can be changed.
0.24
μ
s/0.48
μ
s/0.95
μ
s/1.91
μ
s/3.81
μ
s (@ 8.38-MHz operation with main system clock)
122
μ
s (@ 32.768-kHz operation with subsystem clock)
Figure 5-1. Clock Generator Block Diagram
XT1
XT2
X1
X2
f
XT
f
X
Subsystem
clock
oscillator
Watch timer, clock
output function
Prescaler
Main system
clock
oscillator
Clock to peripheral
hardware
CPU clock
(f
CPU
)
Standby
control
circuit
Wait control
circuit
2
f
X
2
2
f
X
2
3
f
X
2
4
f
X
f
XT
2
Prescaler
Selector
STOP
2
1
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