AT89LS51-16PI View Datasheet(PDF) - Atmel Corporation

Part Name

Description

MFG CO.

AT89LS51-16PI

8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash

Atmel Corporation 

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22. DC Characteristics

The values shown in this table are valid for TA = -40°C to 85°C and VCC = 2.7V to 4.0V, 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 = 0.8 mA

IOL = 1.6 mA

-0.5

0.7

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

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)

IOH = -60 µA

IOH = -25 µA

IOH = -10 µA

IOH = -800 µA

IOH = -300 µA

IOH = -80 µA

VIN = 0.45V

2.4

V

0.65 VCC

V

0.80 VCC

V

2.4

V

0.75 VCC

V

0.9 VCC

V

-50

µA

ITL

Logical 1 to 0 Transition Current

(Ports 1,2,3)

VIN = 2V

-150

µA

ILI

Input Leakage Current (Port 0,

EA)

0.45 < VIN < VCC

±10

µA

RRST

Reset Pulldown Resistor

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(2)

VCC = 4.0V

30

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.

22 AT89LS51

3053B–MICRO–3/05

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