Jameco-electronics Rabbit 3000 Uživatelský manuál stáhnout pdf (Strana 77)

68 Rabbit 3000 Microprocessor

5.6 DC Characteristics

Stresses beyond those listed in Table 5-5 may cause permanent damage. The ratings are

stress ratings only, and functional operation of the Rabbit 3000 chip at these or any other

conditions beyond those indicated in this section is not implied. Exposure to the absolute

maximum rating conditions for extended periods may affect the reliability of the Rabbit

3000 chip.

Table 5-6 outlines the DC characteristics for the Rabbit 3000 at 3.3 V over the recom-

mended operating temperature range from T

= –55°C to +85°C, V

= 3.0 V to 3.6 V.

Table 5-5. Rabbit 3000 Absolute Maximum Ratings

Symbol Parameter Maximum Rating

Operating Temperature -55° to +85°C

Storage Temperature -65° to +150°C

Maximum Input Voltage:

• Oscillator Buffer Input

• 5-V-tolerant I/O

+ 0.5 V

5.5 V

Maximum Operating Voltage 3.6 V

Table 5-6. 3.3 Volt DC Characteristics

Symbol Parameter Test Conditions Min Typ Max Units

Supply Voltage 3.0 3.3 3.6 V

High-Level Input Voltage 2.0 V

Low-Level Input Voltage 0.8 V

High-Level Output Voltage

= 6.8 mA,

= V

(min)

0.7 ×

Low-Level Output Voltage

= 6.8 mA,

= V

(min)

0.4 V

High-Level Input Current

(absolute worst case, all buffers)

= V

(max)

10 µA

Low-Level Input Current

(absolute worst case, all buffers)

= V

(max)

-10 µA

High-Impedance State

Output Current

(absolute worst case, all buffers)

= V

or V

= V

(max), no pull-up

-10 10 µA

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