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HTG12B0

4-Bit Microcontroller

Holtek Semiconductor 

HTG12B0

Absolute Maximum Ratings

Supply Voltage..............................-0.3V to 5.5V

Storage Temperature.................-50°C to 125°C

Input Voltage ......................VSS-0.3 to VDD+0.3

Operating Temperature ..................0°C to 70°C

Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi-

mum Ratings² may 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 expo-

sure to extreme conditions may affect device reliability.

D.C. Characteristics

Symbol

Parameter

Test Conditions

VDD Conditions

VDD Operating Voltage

¾

¾

IDD

Operating Current

3V

No load,

fSYS=512kHz

ISTB

Standby Current,

(fSYS OFF and RTC ON, 3V Halt mode

LCD ON)

VIL

VIH

IOL1

Input Low Voltage

Input High Voltage

PA, PB, BZ and BZ

Output Sink Current

3V

¾

3V

¾

3V VOL=0.3V

IOH1

PA, PB, BZ and BZ

Output Source Current

3V VOH=2.7V

IOL2

IOH2

RPH

Segment Output Sink

Current

3V

VOL=0.44V

VLCD=4.4V

Segment Output Source

Current

3V

VOH=4.0V

VLCD=4.4V

Pull-high Resistor

3V

PS, PM, RES,

TMCLK

VLCD VLCD Output Voltage

3V

¾

Min.

2.4

¾

¾

0

0.8VDD

1.5

-0.5

100

30

50

3.96

Typ.

3

200

Ta=25°C

Max. Unit

3.6 V

300 mA

10

15 mA

¾

0.2VDD V

¾

VDD V

3

¾ mA

-1

¾ mA

200

¾ mA

60

¾ mA

100

150 kW

4.4

4.84 V

6

September 8, 1999

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