DC ELECTRICAL SPECIFICATIONS
(Vcc = 5.0 Vdc_+ 5%; | G ND = 0 Vdc; | 40 |
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• .. | C h a r a c t e r i s t i c | S y m b o l |
| M i n | M a x | Unit | |
Input High Voltage |
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| ViH |
| 2.0 | VCC | V' |
Input Low Voltage |
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| VIL' | GND | 0.8 | " V | |
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Input Leakage Current |
| BERR, BR, BGACK, | lin |
| 2.5 | ~A | |
GND ~< Vin ~< VCC |
| ,CDIS, DSACKO, DSACK1 |
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| HALT, RESET |
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| - 20 | 20 |
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ITSI | - | - 20 | 20 | #A | |||
(, 2.4 V/0.5 V |
| R/W, RMC, |
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Output High Voltage | VOH |
| 2.4 |
| V | ||
IOH = 400 p,A |
| OCS, RMC, |
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| CBREQ, CLOUT, STATUS, REFILL |
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Output Low Voltage |
| m | VOL |
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| V |
IOL =3.2 mA |
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| 0.5 |
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IOL = 5.3 mA |
| CBREQ, AS, DS, R/W, RMC, DSEN, IPEND |
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| m | 0.5 |
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IOL = 2.0 mA |
| STATUS, REFILL, CLOUT, ECS, OCS |
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| 0.5 |
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IOL = 10.7 mA |
| RESET |
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| m | 0.5 |
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Power Dissipation (TA=0°C) | " | PD | , | - - | 2.6 | W | |
Capacitance (see Note) |
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| Cin |
| 2O | pF | |
Vin=0 V, TA= 25°C, f = l | MHz |
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Load Capacitance |
| ECS, OCS | CL |
| - - | 5O | pF |
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| CLOUT, STATUS, REFILL |
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| 70 |
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| All Other |
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| 130 |
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NOTE: Capacitance is periodically sampled rather than 100% tested.
AC ELECTRICAL SPECIFICATIONS - - CLOCK I N P U T (seeFigure 2)
N u m . | C h a r a c t e r i s t i c | 2 0 M H z | 2 5 | M H z | 33.33 MHz | 40 M H z | 5 0 M H z * | Unit | |||||
M i n | M a x | M i n | M a x | M i n | M a x | M i n | M a x | M i n | M a x | ||||
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| Frequency of Operation | 12.5" | 20 | 12.5 | 25 | 20 | 33.33 | 25 | 40 | 25 | 50 | MHz | |
1 | Cycle Time Clock | 50 | 80 | 40 | 80 | 30 | 50 | 25 | 40 | 20 | 40 | ns | |
2, 3 | ClockPulse Widtll Measured | 23 | 57 | 19 | 61 | 14 | 36 | 11.5 | 29 | 9.5 | 30.5 | ns | |
| from 1.5 V to 1.5 V |
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4, 5 | ClockRise and Fall Times | - - | 5 | - - | 4 | - - | 3 . | - - | 2 | - - | 2 | ns |
*Tcase = 80°C Maximum . .