Rainbow-electronics HT49R70A-1 Manual de usuario descargar pdf (Pagina 6)

A.C. Characteristics

Ta=25°C

Symbol Parameter

Test Conditions

Min. Typ. Max. Unit

Conditions

SYS1

System Clock (Crystal OSC)

400

4000 kHz

400

8000 kHz

SYS2

System Clock (RC OSC)

400

4000 kHz

400

8000 kHz

SYS3

System Clock (32768Hz Crystal OSC)

¾¾ ¾

32768

RTCOSC

RTC Frequency

¾¾ ¾

32768

TIMER

Timer I/P Frequency (TMR0/TMR1)

4000 kHz

8000 kHz

WDTOSC

Watchdog Oscillator

45 90 180

35 65 130

RES

External Reset Low Pulse Width

¾¾

¾¾ms

SST

System Start-up Timer Period

Power-up or wake-up

from HALT

1024

SYS

INT

Interrupt Pulse Width

¾¾

¾¾ms

Note: t

SYS

= 1/f

SYS

HT49R70A-1

Rev. 1.00 6 December 4, 2001

1 2 3 4 5 6 7 8 9 10 11 ... 40 41

HT49R70A-1 1
8-Bit LCD Type OTP MCU 1

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Rainbow-electronics HT49R70A-1 Manual de usuario Pagina 6

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