T89C51RD2-3CSCM 查看數據表（PDF） - Atmel Corporation

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T89C51RD2-3CSCM

Atmel Corporation

T89C51RD2-3CSCM Datasheet PDF : 104 Pages

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transitions during bus operation. In the worst cases (capacitive loading 100pF), the noise pulse on the ALE line may exceed

0.45V with maxi VOL peak 0.6V. A Schmitt Trigger use is not necessary.

8. Typicals are based on a limited number of samples and are not guaranteed. The values listed are at room temperature..

9. 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 and 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.

Figure 33. ICC Test Condition, Active Mode

VCC

ICC

VCC

RST EA

(NC)

CLOCK

SIGNAL

XTAL2

XTAL1

VSS

All other pins are disconnected.

Figure 34. ICC Test Condition, Idle Mode

VCC

ICC

VCC