HT48CA3 Holtek Semiconductor Inc, HT48CA3 Datasheet - Page 3

• Manufacturer Part Number: HT48CA3
• Description: 8-Bit Remote Type MCU
• Manufacturer: Holtek Semiconductor Inc

Absolute Maximum Ratings
Supply Voltage ...........................V
Input Voltage..............................V
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may
D.C. Characteristics
A.C. Characteristics
Note: t
Rev. 1.40
Symbol
V
I
I
I
V
V
V
V
I
I
I
R
Symbol
f
f
t
t
t
t
t
t
t
DD
STB1
STB2
OL
OH1
OH2
SYS
TIMER
WDTOSC
WDT1
WDT2
RES
SST
INT
ACC
DD
IL1
IH1
IL2
IH2
PH
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.
SYS
=1/(f
Operating Voltage
Operating Current
Standby Current (WDT Enabled)
Standby Current (WDT Disabled)
Input Low Voltage for I/O Ports
Input High Voltage for I/O Ports
Input Low Voltage (RES Ports)
Input High Voltage (RES Ports)
I/O Port Sink Current
I/O Port Source Current
I/O Port Source Current
Pull-high Resistance
System Clock
Timer I/P Frequency (TMR0/TMR1)
Watchdog Oscillator
Watchdog Time-out Period
(WDT OSC)
Watchdog Time-out Period (f
External Reset Low Pulse Width
System Start-up Timer Period
Interrupt Pulse Width
Data ROM Access Time
SYS
)
Parameter
Parameter
SS
SS
0.3V to V
0.3V to V
SYS
/4)
DD
SS
+4.0V
+0.3V
V
V
3V
3V
3V
3V
3V
3V
3V
3V
3V 50% duty
3V
3V Without WDT prescaler
3V Without WDT prescaler
DD
DD
No load, f
No load, system HALT
No load, system HALT
V
V
V
Power-up, reset or
wake-up from HALT
Test Conditions
Test Conditions
OL
OH
OH
3
=0.1V
=0.9V
=0.8V
Conditions
Conditions
Storage Temperature ............................ 50 C to 125 C
Operating Temperature........................... 40 C to 85 C
SYS
DD
DD
DD
=4MHz
0.8V
0.9V
Min.
Min.
11.5
400
2.2
40
45
0
0
5
0
1
1
1
2
4
DD
DD
1024
1024
Typ.
Typ.
0.1
10
60
90
23
3
5
5
8
0.2V
0.4V
Max.
Max.
4000
4000
V
V
180
3.6
10
80
46
HT48CA3
5
1
DD
DD
July 16, 2003
DD
DD
Ta=25 C
Ta=25 C
Unit
Unit
kHz
kHz
t
t
mA
mA
mA
mA
k
ms
SYS
SYS
V
V
V
V
V
A
A
s
s
s
s