HT48R10A-1/HT48C10-1
A.C. Characteristics
Symbol
Parameter
Test Conditions
V
DD
¾
¾
¾
¾
Conditions
2.2V~5.5V
3.3V~5.5V
2.2V~5.5V
3.3V~5.5V
3.2MHz
f
SYS3
1.6MHz
System Clock (Internal RC OSC)
5V
800kHz
400kHz
f
TIMER
Timer I/P Frequency (TMR)
¾
¾
3V
5V
t
WDT1
t
WDT2
t
WDT3
t
RES
t
SST
t
INT
Watchdog Time-out Period
(WDT OSC)
Watchdog Time-out Period
(System Clock)
Watchdog Time-out Period
(RTC OSC)
External Reset Low Pulse Width
System Start-up Timer Period
Interrupt Pulse Width
3V
Without WDT prescaler
5V
¾
¾
¾
¾
¾
Without WDT prescaler
Without WDT prescaler
¾
Wake-up from HALT
¾
8
¾
¾
1
¾
1
17
1024
7.812
¾
1024
¾
33
¾
¾
¾
¾
¾
ms
t
SYS
ms
ms
t
SYS
ms
2.2V~5.5V
3.3V~5.5V
¾
¾
450
225
0
0
45
32
11
Min.
400
400
400
400
1800
900
Typ.
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
90
65
23
Max.
4000
8000
4000
8000
5400
2700
1350
675
4000
8000
180
130
46
Ta=25°C
Unit
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
ms
ms
ms
f
SYS1
System Clock (Crystal OSC)
f
SYS2
System Clock (RC OSC)
t
WDTOSC
Watchdog Oscillator Period
Rev. 1.90
5
November 4, 2005
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
