OPERATIONAL DESCRIPTION
MAXIMUM GUARANTEED RATINGS* |
|
Operating Temperature Range | 0oC to +70oC |
Storage Temperature Range | |
Lead Temperature (soldering, 10 seconds) | +325 oC |
Positive Voltage on any pin, with respect to ground | VDD+0.3V |
Negative Voltage on any pin, with respect to ground | |
Maximum VDD | +7V |
*Stresses above those listed may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other condition above those indicated in the operational sections of this specification is not implied.
NOTE: When powering this device from laboratory or system power supplies, it is important that the Absolute Maximum Ratings not be exceeded or device failure can result. Some power supplies exhibit voltage spikes or "glitches" on their outputs when the AC power is switched on or off. In addition, voltage transients on the AC power line may appear on the DC output. If this possibility exists it is suggested that a clamp circuit be used.
DC ELECTRICAL CHARACTERISTICS
VDD=5.0V±10%
COM20020: TA=0oC to +70oC, COM20020I:
PARAMETER | SYMBOL | MIN | TYP | MAX | UNIT | COMMENT |
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Low Input Voltage 1 | VIL1 |
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| 0.8 | V | TTL Levels |
(All inputs except A2, |
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XTAL1, nRESET, nRD, |
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nWR, and RXIN) High |
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High Input Voltage 1 | VIH1 | 2.0 |
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| V | TTL Levels |
(All inputs except A2, |
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XTAL1, nRESET, nRD, |
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nWR, and RXIN) |
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Low Input Voltage 2 | VIL2 |
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| 1.0 | V | TTL Clock Input |
(XTAL1) |
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High Input Voltage 2 | VIH2 | 4.0 |
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| V |
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(XTAL1) |
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Low to High Threshold | VILH |
| 1.8 |
| V | Schmitt Trigger, |
Input Voltage (A2, |
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| All Values at VDD = |
nRESET, nRD, nWR, |
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| 5V |
RXIN) |
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High to Low Threshold | VIHL |
| 1.2 |
| V |
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Input Voltage (A2, |
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nRESET, nRD, nWR, |
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RXIN) |
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