5
IDT49FCT3805/A
3.3V CMOS BUFFER/CLOCK DRIVER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE
NOTES:
1. See test circuits and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. tPLH, tPHL, tSK(t) are production tested. All other parameters guaranteed but not production tested.
4. 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.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL
(3,4)
FCT3805 FCT3805A
Symbol Parameter Conditions
(1)
Min.
(2)
Max. Min.
(2)
Max. Unit
t
PLH Propagation Delay CL = 50pF 1.5 5.8 1.5 5.2 ns
tPHL INA to OAn, INB to OBn RL = 500Ω
tR Output Rise Time — 2 — 2 ns
tF Output Fall Time — 2 — 2 ns
t
SK(O) Output skew: skew between outputs of all banks of — 0.6 — 0.6 ns
same package (inputs tied together)
t
SK(P) Pulse skew: skew between opposite transitions — 1 — 1 ns
of same output (|tPHL -– tPLH|)
tSK(T) Package skew: skew between outputs of different — 1.5 — 1.2 ns
packages being driven by the same input source,
power supply voltage, temperature, frequency, and
speed grade.
t
PZL Output Enable Time 1.5 6.5 1.5 6 ns
tPZH OEA to OAn, OEB to OBn
t
PLZ Output Disable Time 1.5 5.5 1.5 5 ns
t
PHZ OEA to OAn, OEB to OBn
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - COMMERCIAL
(3,4)
FCT3805 FCT3805A
Symbol Parameter Conditions
(1)
Min.
(2)
Max. Min.
(2)
Max. Unit
t
PLH Propagation Delay CL = 50pF 1.5 5.8 1.5 5 ns
tPHL INA to OAn, INB to OBn RL = 500Ω
tR Output Rise Time — 2 — 2 ns
tF Output Fall Time — 2 — 2 ns
t
SK(O) Output skew: skew between outputs of all banks of — 0.5 — 0.5 ns
same package (inputs tied together)
t
SK(P) Pulse skew: skew between opposite transitions — 1 — 1 ns
of same output (|tPHL -– tPLH|)
t
SK(T) Package skew: skew between outputs of different — 1.5 — 1.2 ns
packages being driven by the same input source,
power supply voltage, temperature, frequency, and
speed grade.
t
PZL Output Enable Time 1.5 6.5 1.5 6 ns
tPZH OEA to OAn, OEB to OBn
t
PLZ Output Disable Time 1.5 5.5 1.5 5 ns
t
PHZ OEA to OAn, OEB to OBn
