AT89LS53 datasheet(25/35 Pages) ATMEL

25 / 35 page

0851C–MICRO–3/06

AT89LS53

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 TA = -40°C to 85°C and VCC = 2.7V to 6.0V, unless otherwise noted.

Notes:

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

Symbol

Parameter

Condition

Min

Max

Units

VIL

Input Low Voltage

(Except EA)

-0.5

0.2 VCC - 0.1

VIL1

Input Low Voltage (EA)

-0.5

0.2 VCC - 0.3

VIH

Input High Voltage

(Except XTAL1, RST)

0.2 VCC + 0.9

VCC + 0.5

VIH1

Input High Voltage

(XTAL1, RST)

0.7 VCC

VCC + 0.5

VOL

Output Low Voltage (1)

(Ports 1,2,3)

IOL = 1.6 mA

0.5

VOL1

Output Low Voltage (1)

(Port 0, ALE, PSEN)

IOL = 3.2 mA

0.5

VOH

Output High Voltage

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

IOH = -60 µA, VCC = 5V ± 10%

2.4

IOH = -25 µA

0.75 VCC

IOH = -10 µA

0.9 VCC

VOH1

Output High Voltage

(Port 0 in External Bus Mode)

IOH = -800 µA, VCC = 5V ± 10%

2.4

IOH = -300 µA

0.75 VCC

IOH = -80 µA

0.9 VCC

IIL

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

VIN = 0.45V

-50

µA

ITL

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

VIN = 2V

-650

µA

ILI

Input Leakage Current

(Port 0, EA)

0.45 < VIN < VCC

±10

µA

RRST

Reset Pulldown Resistor

300

Ω

CIO

Pin Capacitance

Test Freq. = 1 MHz, TA = 25°C

ICC

Power Supply Current

Active Mode, 12 MHz

Idle Mode, 12 MHz

6.5

Power Down Mode (2)

VCC = 6V

100

µA

VCC = 3V

µA

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