PC87382 Datasheet, PDF (64/72 Pages) National Semiconductor (TI) – LPC-to-LPC Switch for Docking Stations, with Fast Infrared Port, Serial Port and GPIOs

8.0 Device Characteristics (Continued)
8.4.2 Clock Input Timing
Symbol
Parameter
48 MHz
Min
Max
t_CH
t_CL
t_CP
F_CIN
t_CR
t_CF
Clock High Pulse Width¹
Clock Low Pulse Width¹
Clock Period ²
Clock Frequency
Clock Rise Time² (0.8V-2.0V)
Clock Fall Time² (2.0V-0.8V)
6
6
20
48 - 0.1%
21.5
48 + 0.1%
5
5
1. Not tested. Guaranteed by characterization.
2. Not tested. Guaranteed by design.
14.31818 MHz
Min
Max
Unit
29.5
ns
29.5
ns
69.14
70.54
ns
14.31818 - 0.02% 14.31818 + 0.02% MHz
5
ns
5
ns
.
t_CH
t_CP
V_IH
CLKIN
V_IH
V_IH
V_IL
V_IL
V_IL
t_CL
t_CF
t_CR
8.4.3 Clock Output Timing
Symbol
Parameter
From Clock Generator
Min
Max
t_COH
t_COL
t_COP
F_COUT
t_COR
t_COF
Clock High Pulse Width¹
Clock Low Pulse Width¹
Clock Period²
Clock Frequency
Clock Rise Time¹ (0.4V-2.4V)
Clock Fall Time¹ (2.4V-0.4V)
6
6
20
48 - 0.1%
21.5
48 + 0.1%
5
5
1. Not tested. Guaranteed by characterization.
2. Not tested. Guaranteed by design.
From CLKIN
Min
t_CH - 1
t_CL - 1
t_CP - 0.5
F_CIN
Max
t_CP + 0.5
F_CIN
5
5
Unit
ns
ns
ns
MHz
ns
ns
.
V_OH
DCLKOUT
t_COH
V_OH
V_OL
t_COL
t_COP
V_OH
V_OH
V_IL
V_OL
t_COF
t_COR
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