AT89S53_06 datasheet(25/35 Pages) ATMEL

25 / 35 page

0787E–MICRO–3/06

AT89S53

Notes:

1. Under steady state (non-transient) conditions, IOL

must be externally limited as follows:

Maximum I

OL per port pin: 10 mA

Maximum IOL per 8-bit port:

Port 0: 26 mA

Ports 1,2, 3: 15 mA

Maximum total I

OL for all output pins: 71 mA

If I

OL exceeds the test condition, V

OL may exceed the

related specification. Pins are not guaranteed to sink

current greater than the listed test conditions.

2. Minimum V

CC for Power-down is 2V.

Absolute Maximum Ratings*

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

*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.

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

DC Characteristics

The values shown in this table are valid for T

A = -40°C to 85°C and VCC = 4.0V to 6.0V, unless otherwise noted

Symbol

Parameter

Condition

Min

Max

Units

Input Low-voltage

(Except EA)

-0.5

0.2 V

CC - 0.1

VIL1

Input Low-voltage (EA)

-0.5

0.2 VCC - 0.3

VIH

Input Hight-voltage

(Except XTAL1, RST)

0.2 VCC + 0.9

VCC + 0.5

IH1

Input Hight-voltage

(XTAL1, RST)

0.7 V

CC + 0.5

Output Low-voltage (1)

(Ports 1,2,3)

OL = 1.6 mA

0.5

VOL1

Output Low-voltage (1)

(Port 0, ALE, PSEN)

IOL = 3.2 mA

0.5

Output Hight-voltage

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

OH = -60 µA, VCC = 5V ± 10%

2.4

OH = -25 µA

0.75 V

IOH = -10 µA

0.9 VCC

OH1

Output Hight-voltage

(Port 0 in External Bus Mode)

OH = -800 µA, VCC = 5V ± 10%

2.4

OH = -300 µA

0.75 V

IOH = -80 µA

0.9 VCC

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

IN = 0.45V

-50

µA

Logical 1 to 0 Transition Current (Ports 1,2,3)

IN = 2V, VCC = 5V ± 10%

-650

µA

ILI

Input Leakage Current

(Port 0, EA)

0.45 < VIN < VCC

±10

µA

RRST

Reset Pull-down Resistor

300

Ω

Pin Capacitance

Test Freq. = 1 MHz, T

A = 25°C

ICC

Power Supply Current

Active Mode, 12 MHz

Idle Mode, 12 MHz

6.5

Power-down Mode (2)

CC = 6V

100

µA

VCC = 3V

µA

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