External Clock Drive

Figure 1. External Clock Drive Waveform

Table 1. External Clock Drive Characteristics

Symbol	Parameter	VCC = 1.8 - 5.5V		VCC = 2.7 - 5.5V		VCC = 4.5 - 5.5V		Units
		Min.	Max.	Min.	Max.	Min.	Max.
1/tCLCL	Clock Frequency	0	4	0	8	0	12	MHz
tCLCL	Clock Period	250		125		83		ns
tCHCX	High Time	100		50		33		ns
tCLCX	Low Time	100		50		33		ns
tCLCH	Rise Time		2.0		1		0.6	μs
tCHCL	Fall Time		2.0		1		0.6	μs
ΔtCLCL	Change in period from one clock cycle to the next		2		2		2	%