King Billion Electronics Co., Ltd.

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子

股

份

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限

公

司

HE89C21

HE80000 SERIES

January 20, 2003

15

V1.0E

16. Recommended Operating Conditions

Item

Sym.

Rating

Condition

Supply Voltage

2.4V ~ 5.5V

Input Voltage

8MHz

Operating Frequency

Fmax

4MHz

Operating Temperature

Storage Temperature

17. AC/DC Characteristics

Test Condition: Temp. = 25 , VDD

℃

= 3V±10%, GND=0V

PARAMETER

Symbol MIN TYP MAX UNIT

CONDITION

Normal mode current

0.75

1

mA 2M ext. R/C

Slow mode current

6

9

µA

32768 Hz, LCD Disabled

Idle mode current

4

7

µA

32768 Hz, LCD Disabled

Additional current if LCD

ON

2

3

µA

LCD Enabled

Sleep mode current

1

µA

Input high voltage

0.8

Input Low Voltage

0.2

Input Hysteresis Width

1/3

from low to high)

low)

Output source current

50

µA

Output sink current

1.0

Input Low Current

100

µA

Input Low Current

20

µA

1.

The “Output source current” specification is applicable only to the Push-Pull I/O type.