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MOTOROLA M68040 USER’S MANUAL B- 13
B.7.3 DC Electrical Specifications (V CC = 5.0 Vdc ±5 %)
Characteristic Symbol Min Max Unit
Input High Voltage VIH 2V
CC V
Input Low Voltage VIL GND 0.8 V
Undershoot — 0.8 V
Input Leakage Current @ 0.5–2.4 V
AVEC , BCLK, BG, CDIS, IPL≈, PCLK, RSTI, SCx, TBI,
TLNx, TCI , TCK, TEA
Iin 20 20 mA
Hi-Z (Off-State) Leakage Current @ 0.5–2.4 V
An, BB, CIOUT, Dn, LOCK, LOCKE, R/ W, SIZx, TA, TDO, TIP ,
TMx, TLNx, TS, TTx, UPAx
ITSI 20 20 mA
Signal Low Input Current, VIL = 0.8 V
TMS, TDI, TRST IIL –1.1 –0.18 mA
Signal High Input Current, VIH = 2.0 V
TMS, TDI, TRST IIH –0.94 –0.16 mA
Output High Voltage, IOH = 5 mA VOH 2.4 — V
Output Low Voltage, IOL = 5 mA VOL — 0.5 V
Capacitance*, Vin = 0 V, f = 1 MHz Cin —25pF
*Capacitance is periodically sampled rather than 100% tested.
B.7.4 Power Dissipation
Frequency Watts
Maximum Values (VCC = 5.25 V, TA = 0°C)
20 MHz 3.2
25 MHz 3.9
33 MHz 4.9
Typical Values (VCC = 5 V, TA = 25°C)*
20 MHz 2.0
25 MHz 2.4
33 MHz 3.0
*This information is for system reliability purposes.
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