HT48C10 View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
MFG CO.
'HT48C10' PDF : 59 Pages View PDF
HT48CXX/HT48RXX
A.C. Characteristics
Symbol
Parameter
Test Conditions
VDD Conditions
3V
—
fSYS1
System Clock (Crystal OSC)
5V
—
3V
—
fSYS2
System Clock (RC OSC)
5V
—
fTIMER
Timer I/P Frequency
(TMR, TMR0, TMR1)
3V
5V
—
—
tWDTOSC Watchdog Oscillator
—
—
tWDT1
tWDT2
tRES
Watchdog Time-out
Period (RC)
Watchdog Time-out Period
(System Clock)
External Reset Low Pulse
Width
tSST
System Start-up Timer
Period
tINT
Interrupt Pulse Width
Note: tSYS=1/fSYS
—
Without WDT
prescaler
—
Without WDT
prescaler
—
—
Power-up or
— Wake-up from
halt
—
—
Ta=25°C
Min. Typ. Max. Unit
400 — 4000 kHz
400 — 8000 kHz
400 — 2000 kHz
400 — 3000 kHz
0
— 4000 kHz
0
— 4000 kHz
45 90 180
µs
35 65 130
12 23 45
ms
9
17 35
— 1024 — tSYS
1
—
—
µs
— 1024 — tSYS
1
—
—
µs
12
25th May ’99
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