AT89S52-24AC Ver la hoja de datos (PDF) - Atmel Corporation

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Fabricante

AT89S52-24AC

8-bit Microcontroller with 8K Bytes In-System Programmable Flash

Atmel Corporation 

AT89S52

26. Absolute Maximum Ratings*

Operating Temperature.................................. -55°C to +125°C

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

Voltage on Any Pin

with Respect to Ground .....................................-1.0V to +7.0V

Maximum Operating Voltage ............................................ 6.6V

DC Output Current...................................................... 15.0 mA

*NOTICE:

Stresses beyond those listed under “Absolute

Maximum Ratings” may cause permanent dam-

age to the device. This is a stress rating only and

functional operation of the device at these or any

other conditions beyond those indicated in the

operational sections of this specification is not

implied. Exposure to absolute maximum rating

conditions for extended periods may affect

device reliability.

27. DC Characteristics

The values shown in this table are valid for TA = -40°C to 85°C and VCC = 4.0V to 5.5V, unless otherwise noted.

Symbol

Parameter

Condition

Min

Max

Units

VIL

VIL1

VIH

VIH1

VOL

VOL1

Input Low Voltage

Input Low Voltage (EA)

Input High Voltage

Input High Voltage

Output Low Voltage(1) (Ports 1,2,3)

Output Low Voltage(1)

(Port 0, ALE, PSEN)

(Except EA)

(Except XTAL1, RST)

(XTAL1, RST)

IOL = 1.6 mA

IOL = 3.2 mA

-0.5

0.2 VCC-0.1

V

-0.5

0.2 VCC-0.3

V

0.2 VCC+0.9

VCC+0.5

V

0.7 VCC

VCC+0.5

V

0.45

V

0.45

V

VOH

VOH1

IIL

ITL

Output High Voltage

(Ports 1,2,3, ALE, PSEN)

Output High Voltage

(Port 0 in External Bus Mode)

Logical 0 Input Current (Ports 1,2,3)

Logical 1 to 0 Transition Current

(Ports 1,2,3)

IOH = -60 µA, VCC = 5V ± 10%

IOH = -25 µA

IOH = -10 µA

IOH = -800 µA, VCC = 5V ± 10%

IOH = -300 µA

IOH = -80 µA

VIN = 0.45V

VIN = 2V, VCC = 5V ± 10%

2.4

V

0.75 VCC

V

0.9 VCC

V

2.4

V

0.75 VCC

V

0.9 VCC

V

-50

µA

-300

µA

ILI

RRST

Input Leakage Current (Port 0, EA)

Reset Pulldown Resistor

0.45 < VIN < VCC

±10

µA

50

300

KΩ

CIO

ICC

Notes:

Pin Capacitance

Test Freq. = 1 MHz, TA = 25°C

10

pF

Power Supply Current

Active Mode, 12 MHz

Idle Mode, 12 MHz

25

mA

6.5

mA

Power-down Mode(1)

VCC = 5.5V

50

µA

1. Under steady state (non-transient) conditions, IOL must be externally limited as follows:

Maximum IOL per port pin: 10 mA

Maximum IOL per 8-bit port:

Port 0: 26 mA

Ports 1, 2, 3: 15 mA

Maximum total IOL for all output pins: 71 mA

If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater

than the listed test conditions.

2. Minimum VCC for Power-down is 2V.

29

1919C–MICRO–3/05

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