參數(shù)資料
型號: UPD780023AGK-xxx-9ET
廠商: NEC Corp.
元件分類: 圓形連接器
英文描述: Circular Connector; No. of Contacts:56; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:25-4 RoHS Compliant: No
中文描述: 8位單晶片微控制器
文件頁數(shù): 16/96頁
文件大?。?/td> 661K
代理商: UPD780023AGK-XXX-9ET
23
PD780021A, 780022A, 780023A, 780024A, 780021AY, 780022AY, 780023AY, 780024AY
Data Sheet U14042EJ4V0DS
5.2 Clock Generator
A system clock generator is incorporated.
The minimum instruction execution time can be changed.
Expanded-specification products of
PD780021A, 780022A, 780023A, 780024A
0.166
s/0.333 s/0.666 s/1.33 s/2.66 s
(@12 MHz, VDD = 4.5 to 5.5 V operation with main system clock)
122
s (@32.768 kHz, VDD = 4.0 to 5.5 V operation with subsystem clock)
PD780021AY, 780022AY, 780023AY, 780024AY, and conventional products of PD780021A, 780022A,
780023A, 780024A
0.238
s/0.48 s/0.95 s/1.91 s/3.81 s (@8.38 MHz, VDD = 4.0 to 5.5 V operation with main system clock)
122
s (@32.768 kHz, VDD = 4.0 to 5.5 V operation with subsystem clock)
Figure 5-1. Clock Generator Block Diagram
XT1
XT2
X1
X2
fXT
fX
Subsystem
clock
oscillator
Watch timer, clock
output function
Prescaler
Main system
clock
oscillator
Clock to peripheral
hardware
CPU clock
(fCPU)
Standby
controller
Wait
controller
2
fX
22
fX
23
fX
24
fX
fXT
2
Prescaler
Selector
STOP
2
1
HALT
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