Rainbow-electronics AT89C5122 Manual de usuario descargar pdf (Pagina 186)

186

AT8xC5122/23

4202E–SCR–06/06

Electrical Characteristics

Absolute Maximum Ratings

DC Parameters

= -40 to +85°C; V

= 0 V, F

CK_CPU

= 0 to 24 MHz , V

= 3.0V to 5.5V

Ambiant Temperature Under Bias ......................-25°C to 85°C

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

Voltage on V

to V

......................................-0.5 V to + 6.0V

Voltage on Any Pin to V

........................-0.5 V to V

+ 0.5 V

Power Dissipation 1 W

Note: Stresses at or above those listed under “Absolute

Maximum Ratings” may cause permanent damage to

the device. This is a stress rating only and functional

operation of the device at these or any other condi-

tions above those indicated in the operational

sections of this specification is not implied. Exposure

to absolute maximum rating conditions may affect

device reliability.

Power Dissipation value is based on the maximum

allowable die temperature and the thermal resistance

of the package.

Symbol Parameter Min Typ Max Unit Test Conditions

Input Low Voltage -0.5 0.2 V

- 0.1 V

Input High Voltage except XTAL1, RST 0.2 V

+ 0.9 V

+ 0.5 V

IH1

Input High Voltage, XTAL1, RST 0.7 V

+ 0.5 V

Output Low Voltage: P0, ALE, PSEN 0.45 V I

= 1.6 mA

Output High Voltage: P0, ALE, PSEN 0.9 V

= 10 µA

OL1

Output Low Voltage: P2, P3, P4, P5, P1.2, P1.6,

P1.7

0.45 V I

= 0.8 mA

OH1

Output High Voltage: P2, P3, P4, P5, P1.2, P1.6,

P1.7

0.9 V

= -10 µA

Logical 0 Input Current ports 2 to 5 and P1.2, P1.6,

P1.7, if Weak pull-up enabled

-50 μA Vin = 0.45 V

Input Leakage Current ±10 μA0.45 V < V

< V

Logical 1 to O transistion Current, Port 51

configuration

−650 μAV

= 2 V

MEDIUM

Medium Pullup Resistor 10 kΩ

WEAK

Weak Pullup Resistor 100 kΩ

CIO Capacitance of I/O Buffer 10 pF

Fc = 1MHz

A = 25°C

Digital Supply Voltage 3 3.4 3.6 V C

= 470 nF

Digital Supply Output Current (DVcc pin) 10 mA

= 100 nF

CK_CPU

= 24 MHz

PFDP

Power Fail High Level Threshold 2.8 3 V

PFDM

Power Fail Low Level Threshold 2,5 2.6 V

rise,

fall

rise and fall time 1μs 600 second

1 2 ... 181 182 183 184 185 186 187 188 189 190 191 ... 212 213

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