4
INDUSTRIAL TEMPERATURE RANGE
IDT74FCT20807
2.5V CMOS 1-TO-10 CLOCK DRIVER
NOTES:
1. tPLH and tPHL are production tested. All other parameters guaranteed but not production tested.
2. Propagation delay range indicated by Min. and Max. limit is due to VCC, operating temperature and process parameters. These propagation delay limits do not imply skew.
3. See test circuits and waveforms.
4. Skew measured between all outputs under identical transitions and load conditions.
5. Skew measured is difference between propagation delay times tPHL and tPLH of same output under identical load conditions.
6. Part to part skew for all outputs given identical transitions and load conditions at identical VCC levels and temperature.
7. Airflow of 1m/s is recommended for frequencies above 133MHz.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
(1,2)
Following Conditions Apply Unless Otherwise Specified
Industrial: TA = -40°C to +85°C, VCC = 2.5V ± 0.2V
Symbol Parameter Conditions
(3,7)
Min. Typ. Max. Unit
t
PLH Propagation Delay CL = 12pF — 2.4 2.7 ns
tPHL 150 MHz
tR Output Rise Time — 1 1.2 ns
tF Output Fall Time — 1 1.2 ns
tSK(O) Same Device Output Pin-to-Pin Skew
(4)
— 100 150 ps
tSK(P) Pulse Skew
(5)
— 250 300 ps
t
SK(PP) Part-to-Part Skew
(6)
— 400 600 ps
Symbol Parameter Conditions
(3)
Min. Typ. Max. Unit
t
PLH Propagation Delay CL = 22pF — 3 3.5 ns
tPHL 100 MHz
tR Output Rise Time — 1 1.25 ns
tF Output Fall Time — 1 1.25 ns
tSK(O) Same Device Output Pin-to-Pin Skew
(4)
— 100 150 ps
tSK(P) Pulse Skew
(5)
— 250 300 ps
t
SK(PP) Part-to-Part Skew
(6)
— 400 600 ps
