87C51 datasheet(9/21 Pages) INTEL

Part #	87C51

Description	CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

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Manufacturer	INTEL [Intel Corporation]

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9 / 21 page

87C5180C51BH80C31BH

DC CHARACTERISTICS (Over Operating Conditions) (Continued)

Symbol

Parameter

Min

Typ(1)

Max

Unit

Test Conditions

VOL1

Output Low Voltage(6)

03

V

IOL e 200 mA(2)

(Port 0 ALE PSEN)

045

V

IOL e 32 mA (2)

10

V

IOL e 70 mA(2)

VOH

Output High Voltage

VCC b 03

V

IOH eb10 mA(3)

(Ports 1 2 3 ALE PSEN)

VCC b 07

V

IOH eb30 mA(3)

VCC b 15

V

IOH eb60 mA(3)

VOH1

Output High Voltage

VCC b 03

V

IOH eb200 mA(3)

(Port 0 in External Bus Mode)

VCC b 07

V

IOH eb32 mA(3)

VCC b 15

V

IOH eb70 mA(3)

IIL

Logical 0 Input Current

VIN e 045V

(Ports 1 2 3)

Commercial

b

50

m

A

Express

b

75

m

A

ILI

Input Leakage Current

g

10

m

A

045 k VIN k VCC

(Port 0)

ITL

Logical 1-to-0 Transition Current

VIN e 2V

(Ports 1 2 3)

Commercial

b

650

m

A

Express

b

750

m

A

RRST

RST Pulldown Resistor

40

225

kX

CIO

Pin Capacitance

10

pF

1 MHz 25 C

ICC

Power Supply Current

(Note 4)

Active Mode

12 MHz (Figure 5)

115

20

mA

16 MHz

26

mA

24 MHz

38

mA

Idle Mode

12 MHz (Figure 5)

35

75

mA

16 MHz

95

mA

24 MHz

135

mA

Power Down Mode

5

50

m

A

9

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87C51 Datasheet(PDF) 9 Page - Intel Corporation

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