HT48R70A-1(2004) 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT48R70A-1
(Rev.:2004)

I/O Type 8-Bit MCU

Holtek Semiconductor 

HT48R70A-1/HT48C70-1

A.C. Characteristics

Ta=25°C

Symbol

Parameter

fSYS1 System Clock (Crystal OSC)

Test Conditions

VDD

Conditions

¾ 2.2V~5.5V

¾ 3.3V~5.5V

Min. Typ. Max. Unit

400 ¾ 4000 kHz

400 ¾ 8000 kHz

fSYS2 System Clock (RC OSC)

¾ 2.2V~5.5V

¾ 3.3V~5.5V

400 ¾ 4000 kHz

400 ¾ 8000 kHz

3.2MHz

1800 ¾ 5400 kHz

fSYS3 System Clock (Internal RC OSC)

1.6MHz

5V

800kHz

900 ¾ 2700 kHz

450 ¾ 1350 kHz

400kHz

225 ¾ 675 kHz

fTIMER Timer I/P Frequency (TMR)

¾ 2.2V~5.5V

¾ 3.3V~5.5V

0 ¾ 4000 kHz

0 ¾ 8000 kHz

tWDTOSC Watchdog Oscillator Period

3V

¾

5V

¾

tWDT1 Watchdog Time-out Period (WDT OSC)

3V

Without WDT prescaler

5V

tWDT2 Watchdog Time-out Period (System Clock) ¾ Without WDT prescaler

tWDT3 Watchdog Time-out Period (RTC OSC)

¾ Without WDT prescaler

tRES

External Reset Low Pulse Width

¾

¾

tSST

System Start-up Timer Period

¾ Wake-up from HALT

tINT

Interrupt Pulse Width

¾

¾

45 90 180 ms

32 65 130 ms

11 23 46 ms

8 17 33 ms

¾ 1024 ¾ tSYS

¾ 7.812 ¾ ms

1 ¾ ¾ ms

¾ 1024 ¾ tSYS

1 ¾ ¾ ms

Rev. 1.60

7

June 9, 2004

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