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HT49C50L Scheda tecnica(PDF) 7 Page - Holtek Semiconductor Inc

Il numero della parte HT49C50L
Spiegazioni elettronici  LCD Type 8-Bit MCU
PDF  45 Pages
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Produttore elettronici  HOLTEK [Holtek Semiconductor Inc]
Homepage  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT49C50L Scheda tecnica(HTML) 7 Page - Holtek Semiconductor Inc

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A.C. Characteristics
VDD=1.5V for HT49C50L, VDD=3V&VDD=5V for HT49R50A-1 and HT49C50-1
Ta=25
°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
fSYS1
System Clock
(Crystal OSC)
¾
1.2V~2.2V (for HT49C50L)
400
¾
500
kHz
¾
2.2V~5.5V
400
¾
4000
kHz
¾
3.3V~5.5V
400
¾
8000
kHz
fSYS2
System Clock
(RC OSC)
¾
1.2V~2.2V (for HT49C50L)
400
¾
500
kHz
¾
2.2V~5.5V
400
¾
4000
kHz
¾
3.3V~5.5V
400
¾
8000
kHz
fSYS3
System Clock
(32768Hz Crystal OSC)
¾¾
¾
32768
¾
Hz
fRTCOSC RTC Frequency
¾¾
¾
32768
¾
Hz
fTIMER
Timer I/P Frequency
¾
1.2V~2.2V (for HT49C50L)
0
¾
500
kHz
¾
2.2V~5.5V
0
¾
4000
kHz
¾
3.3V~5.5V
0
¾
8000
kHz
tWDTOSC Watchdog Oscillator Period
1.5V
¾
35
70
140
ms
3V
45
90
180
ms
5V
32
65
130
ms
tRES
External Reset Low Pulse Width
¾
For HT49C50L
10
¾¾
ms
For HT49R50A-1/HT49C50-1
1
¾¾
ms
tSST
System Start-up Timer Period
¾
Wake-up from HALT
¾
1024
¾
*tSYS
tLVR
Low Voltage Width to Reset
¾¾
1
¾¾
ms
tINT
Interrupt Pulse Width
¾
For HT49C50L
10
¾¾
ms
For HT49R50A-1/HT49C50-1
1
¾¾
ms
Note:
*tSYS= 1/fSYS1, 1/fSYS2 or 1/fSYS3
HT49R50A-1/HT49C50-1/HT49C50L
Rev. 2.00
7
November 29, 2005



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