Clock Input Timing Diagram - Motorola M68060 User Manual

12.5 CLOCK INPUT SPECIFICATIONS (V
Num Characteristic
Frequency of Operation
1 CLK Cycle Time
2 CLK Rise Time
3 CLK Fall Time
4 CLK Duty Cycle Measured at 1.5 V
1
CLK Pulse Width High Measured at 1.5 V
4a
1
CLK Pulse Width Low Measured at 1.5 V
4b
55 CLKEN Input Setup
56 CLKEN Input Hold
NOTES:
1.Specification value at maximum frequency of operation.
2.Minimum frequency is periodically sampled and not 100% tested.
3.CLK may be stopped LOW to conserve power.
CLK
BCLK
CLKEN
MOTOROLA
Min
0
20
Ñ
Ñ
45
4a
55
56
Figure 12-1. Clock Input Timing Diagram
M68060 USERÕS MANUAL
Electrical and Thermal Characteristics
= 3.3 V ± 5%)
CC
66 MHz
50 MHz
Max Min Max
2 2
50 66.67
0
Ñ 15 Ñ
2 Ñ
2 Ñ
55 45 55
9 11 6.75 8.25
9 11 6.75 8.25
8 Ñ 7 Ñ
2 Ñ 2 Ñ
2
1
V
V
M
L
4b
55
56
75 MHz
Unit
Min Max
2
75 MHz
0
13.3 Ñ nS
2 Ñ 2 nS
2 Ñ 2 nS
45 55 %
6.0 7.3 nS
6.0 7.3 nS
5.5 Ñ nS
2 Ñ nS
3
V
H
12-3