HT49C10 datasheet(6/47 Pages) HOLTEK

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Absolute Maximum Ratings

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

Storage Temperature.................-50°Cto125°C

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

Operating Temperature ..............-25°Cto70°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

Ta=25°C

Symbol

Parameter

Test Conditions

Min.

Typ. Max. Unit

VDD

Conditions

VDD

Operating Voltage

¾¾

2.2

5.2

IDD1

Operating Current

(Crystal OSC)

3V No load,

fSYS=4MHz

0.7

1.5

IDD2

Operating Current

(RC OSC)

3V No load,

fSYS=2MHz

0.5

ISTB1

Standby Current

(RTC Enable, LCD On)

3V No load,

system Halt

¾¾

ISTB2

Standby Current

(RTC Disable, LCD Off)

3V No load,

system Halt

¾¾

VIL

Input Low Voltage for I/O Ports

0.9

1.5

VIH

Input High Voltage for I/O

Ports

2.1

3.5

VIL1

Input Low Voltage

(RES, INT0, INT1, TMR)

3V RES=0.5VDD

INT0/1=0.3VDD

TMR=0.3VDD

1.5/0.9

2.5/1.5

VIH1

Input High Voltage

(RES, INT0, INT1, TMR)

0.8VDD

2.4

4.0

IOL

I/O Ports Sink Current

3V VOL=0.3V

1.5

2.5

5V VOL=0.5V

IOH

I/O Ports Source Current

3V VOH=2.7V

-1

-1.5

5V VOH=4.5V

-2

-3

RPH

Pull-high Resistance of I/O

Ports and INT0, INT1

HT49C10

September 28, 1999

HT49C10 Datasheet(PDF) 6 Page - Holtek Semiconductor Inc

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