EM78P451SWM datasheet(50/54 Pages) EMC

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EM78P451S

8-Bit Microcontroller with OTP ROM

•

Product Specification (V1.0) 06.01.2004

(This specification is subject to change without further notice)

ABSOLUTE MAXIMUM RATING

Items

Rating

Temperature under bias

°C

Storage temperature

-65

°C

150

°C

Input voltage

-0.3V

+6.0V

Output voltage

-0.3V

+6.0V

Operating Frequency (2clk)

20MHz

ELECTRICAL CHARACTERISTICS

6.1 DC Characteristic

(Ta=25

°C, VDD=5V±5%, VSS=0V)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

XTAL VDD to 2.3V

XTAL VDD to 3V

FXT

XTAL VDD to 5V

Two clocks

MHz

RC VDD to 2.3V

RC VDD to 3V

FRC

RC VDD to 5V

Two clocks

MHz

IIL

Input Leakage Current

VIN = VDD, VSS

±1

µA

VIH1

Input High Voltage

VDD=5V)

2.0

VIL1

Input Low Voltage

(VDD=5V)

0.8

VIHX1

Clock Input High Voltage

(VDD=5V)

OSCI

2.5

VILX1

Clock Input Low Voltage

(VDD=5V)

OSCI

1.0

VIHT1

Input high threshold voltage

(Schmitt trigger)

P70/RESET pin

2.0

VILT1

Input low threshold voltage

(Schmitt trigger)

P70/RESET pin

0.8

VIH2

Input High

Voltage(VDD=3V)

1.5

VIL2

Input Low Voltage

(VDD=3V)

0.4

VIHX2

Clock Input High Voltage

(VDD=3V)

OSCI

1.5

VILX2

Clock Input Low Voltage

(VDD=3V)

OSCI

0.6

VOH1

Output High Voltage

(Ports 5,6,8, P74~P77,

P90~P92,P95~P97,)

IOH = -12.0mA

2.4

S7=1(IOCD Register bit7),

IOH = -9.0mA

2.4

VOH2

Output High Voltage

(P70~P72)

S7=0(IOCD Register bit7),

IOH = -12.0mA

2.4

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