AT89C51SND1C-ROTIL datasheet(18/42 Pages) ATMEL

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180

4109JS–8051–10/06

AT8xC51SND1C

22. Electrical Characteristics

22.1

Absolute Maximum Rating

22.2

DC Characteristics

22.2.1

Digital Logic

Storage Temperature ......................................... -65 to +150

°C

Voltage on any other Pin to V

SS .................................... -0.3 to +4.0 V

OL per I/O Pin ................................................................. 5 mA

Power Dissipation ............................................................. 1 W

Operating Conditions

Ambient Temperature Under Bias........................ -40 to +85

°C

DD ........................................................................................................................4.0V

*NOTICE:

Stressing the device beyond the “Absolute Maxi-

mum Ratings” may cause permanent damage.

These are stress ratings only. Operation beyond

the “operating conditions” is not recommended

and extended exposure beyond the “Operating

Conditions” may affect device reliability.

Table 143. Digital DC Characteristics

DD = 2.7 to 3.3 V, TA = -40 to +85°C

Symbol

Parameter

Min

Typ

(1)

Max

Units

Test Conditions

Input Low Voltage

-0.5

0.2·V

DD - 0.1

IH1

(2)

Input High Voltage (except RST, X1)

0.2·V

DD + 1.1

IH2

Input High Voltage (RST, X1)

0.7·V

DD + 0.5

OL1

Output Low Voltage

(except P0, ALE, MCMD, MDAT, MCLK,

SCLK, DCLK, DSEL, DOUT)

0.45

OL= 1.6 mA

OL2

Output Low Voltage

(P0, ALE, MCMD, MDAT, MCLK, SCLK,

DCLK, DSEL, DOUT)

0.45

OL= 3.2 mA

OH1

Output High Voltage

(P1, P2, P3, P4 and P5)

DD - 0.7

OH= -30 μA

VOH2

Output High Voltage

(P0, P2 address mode, ALE, MCMD,

MDAT, MCLK, SCLK, DCLK, DSEL,

DOUT, D+, D-)

VDD - 0.7

IOH= -3.2 mA

Logical 0 Input Current (P1, P2, P3, P4

and P5)

-50

μAV

IN= 0.45 V

ILI

Input Leakage Current (P0, ALE, MCMD,

MDAT, MCLK, SCLK, DCLK, DSEL,

DOUT)

μA

0.45< VIN< VDD

ITL

Logical 1 to 0 Transition Current

(P1, P2, P3, P4 and P5)

-650

μAV

IN= 2.0 V

RST

Pull-Down Resistor

200

Pin Capacitance

A= 25°C

RET

DD Data Retention Limit

1.8

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