HT48R50A-1/HT48C50-1
Symbol
Parameter
Test Conditions
V
DD
3V
I/O Port Source Current
5V
R
PH
3V
Pull-high Resistance
5V
Conditions
V
OH
=0.9V
DD
V
OH
=0.9V
DD
¾
¾
Min.
-2
-5
20
10
Typ.
-4
-10
60
30
Max.
¾
¾
100
50
Unit
mA
mA
kW
kW
I
OH
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
System Clock
(Internal RC OSC)
1.6MHz
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
5V
¾
¾
¾
¾
¾
2.2V~5.5V
3.3V~5.5V
¾
¾
Without WDT
prescaler
Without WDT
prescaler
Without WDT
prescaler
¾
Wake-up from HALT
¾
450
225
0
0
45
32
11
8
¾
¾
1
¾
1
Min.
400
400
400
400
1800
900
Typ.
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
90
65
23
17
1024
7.812
¾
1024
¾
Max.
4000
8000
4000
8000
5400
2700
1350
675
4000
8000
180
130
46
33
¾
¾
¾
¾
¾
Ta=25°C
Unit
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
ms
ms
ms
ms
*t
SYS
ms
ms
t
SYS
ms
f
SYS1
System Clock (Crystal OSC)
f
SYS2
System Clock (RC OSC)
t
WDTOSC
Watchdog Oscillator Period
Note: *t
SYS
= 1/f
SYS1
, 1/f
SYS2
or 1/f
SYS3
Rev. 2.01
5
January 9, 2009
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
