AT89C51CC03U-RDTIM datasheet(168/195 Pages) ATMEL

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AT89C51CC03

4182I–CAN–06/05

Electrical Characteristics

Absolute Maximum Ratings

ICCOP Test Conditions

Power Consumption

Management

Since the introduction of the first C51 device, every manufacturer made operating ICC

measurements under Reset, which made sense for the designs where the CPU was

running under reset. In our new devices, the CPU is no longer active during reset, so the

power consumption is very low but not representative of what will happen in the cus-

tomer system. Thus, while keeping measurements under Reset, we present a new way

to measure the operating ICC.

Using an internal test ROM, the following code is executed.

Label: SJMP Label (80FE)

Ports 1 and 4 are disconnected, RST = Vcc, XTAL2 is not connected and XTAL1 is

driven by the clock.

This is much more representative of the real operating Icc.

DC Parameters for Standard Voltage

Industrial TA = -40°C to +85°C; VSS = 0V;

Automotive TA = -40°C to +125°C; VSS = 0V

VCC =3.0V to 5.5V and F = 0 to 40 MHz (both internal and external code execution)

VCC =4.5V to 5.5V and F = 0 to 60 MHz (internal code execution only)

Ambiant Temperature Under Bias:

I = industrial........................................................-40

°C to 85°C

A = automotive..................................................-40°C to +125°C

Voltage on VCC from VSS......................................-0.5V to + 6V

Voltage on Any Pin from VSS..................... -0.5V to VCC + 0.2V

Power Dissipation .............................................................. 1 W

Table 116. DC Parameters in Standard Voltage

Symbol

Parameter

Min

Typ(5)

Max

Unit

Test Conditions

VIL

Input Low Voltage

-0.5

0.2Vcc - 0.1

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, ports 1, 2, 3 and 4(6)

0.3

0.45

1.0

IOL = 100 µA(4)

IOL = 1.6 mA(4)

IOL = 3.5 mA(4)

VOL1

Output Low Voltage, port 0, ALE, PSEN (6)

0.3

0.45

1.0

IOL = 200 µA(4)

IOL = 3.2 mA(4)

IOL = 7.0 mA(4)

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 conditions above those indicated in

the operational sections of this specification is not implied.

Exposure to absolute maximum rating conditions may affect

device reliability.

The power dissipation is based on the maximum allowable

die temperature and the thermal resistance of the package.

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