ht48c50-1 Holtek Semiconductor Inc., ht48c50-1 Datasheet - Page 5

• Manufacturer Part Number: ht48c50-1
• Description: Ht48r50a-1/ht48c50-1 -- I/o Type 8-bit Mcu
• Manufacturer: Holtek Semiconductor Inc.

A.C. Characteristics
Note: *t
Rev. 2.00
I
R
Symbol
f
f
f
f
t
t
t
t
t
t
t
Symbol
OH
SYS1
SYS2
SYS3
TIMER
WDTOSC
WDT1
WDT2
WDT3
RES
SST
INT
PH
SYS
= 1/f
I/O Port Source Current
Pull-high Resistance
System Clock (Crystal OSC)
System Clock (RC OSC)
System Clock
(Internal RC OSC)
Timer I/P Frequency (TMR)
Watchdog Oscillator Period
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
SYS1
, 1/f
Parameter
Parameter
SYS2
or 1/f
SYS3
V
V
5V
3V
5V
3V
5V
3V V
5V V
3V
5V
DD
DD
Test Conditions
Test Conditions
2.2V~5.5V
3.3V~5.5V
2.2V~5.5V
3.3V~5.5V
3.2MHz
1.6MHz
800kHz
400kHz
2.2V~5.5V
3.3V~5.5V
Without WDT
prescaler
Without WDT
prescaler
Without WDT
prescaler
Wake-up from HALT
OH
OH
=0.9V
=0.9V
Conditions
Conditions
5
DD
DD
1800
Min.
Min.
400
400
400
400
900
450
225
45
32
11
HT48R50A-1/HT48C50-1
20
10
0
0
8
1
1
2
5
7.812
1024
1024
Typ.
Typ.
90
65
23
17
60
30
10
4
Max.
Max.
4000
8000
4000
8000
5400
2700
1350
4000
8000
100
675
180
130
50
46
33
March 8, 2006
Ta=25 C
*t
Unit
Unit
t
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
mA
mA
k
k
ms
ms
ms
SYS
SYS
s
s
s
s