6.6 Switching Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified.(1)(2)(4)(5)
| PARAMETER |
TEST CONDITIONS |
MIN |
TYP |
MAX |
UNIT |
| tPHLD |
Differential propagation delay high to low |
CL = 15 pF
VID = 200 mV
(Figure 15 and Figure 16) |
1.2 |
2 |
2.7 |
ns |
| tPLHD |
Differential propagation delay low to high |
1.2 |
2 |
2.7 |
ns |
| tSKD1 |
Differential pulse skew |tPHLD − tPLHD|(3) |
|
0.1 |
0.4 |
ns |
| tSKD2 |
Differential channel-to-channel skew; same device(4) |
|
0.15 |
0.5 |
ns |
| tSKD3 |
Differential part-to-part skew(5) |
|
|
1 |
ns |
| tSKD4 |
Differential part-to-part skew(6) |
|
|
1.5 |
ns |
| tTLH |
Rise time |
|
0.5 |
1 |
ns |
| tTHL |
Fall time |
|
0.5 |
1 |
ns |
| tPHZ |
Disable time high to Z |
RL = 2 kΩ
CL = 15 pF
(Figure 17 and Figure 18) |
|
8 |
14 |
ns |
| tPLZ |
Disable time low to Z |
|
8 |
14 |
ns |
| tPZH |
Enable time Z to high |
|
9 |
14 |
ns |
| tPZL |
Enable time Z to low |
|
9 |
14 |
ns |
| fMAX |
Maximum operating frequency(7) |
All channels switching |
200 |
250 |
|
MHz |
(1) All typicals are given for: VCC = 3.3 V, TA = 25°C.
(2) Generator waveform for all tests unless otherwise specified: f = 1 MHz, ZO = 50 Ω, tr and tf (0% to 100%) ≤ 3 ns for RIN.
(3) tSKD1 is the magnitude difference in differential propagation delay time between the positive going edge and the negative going edge of the same channel
(4) tSKD2, channel-to-channel skew is defined as the difference between the propagation delay of one channel and that of the others on the same chip with any event on the inputs.
(5) tSKD3, part-to-part skew, is the differential channel-to-channel skew of any event between devices. This specification applies to devices at the same VCC, and within 5°C of each other within the operating temperature range.
(6) tSKD4, part-to-part skew, is the differential channel-to-channel skew of any event between devices. This specification applies to devices over recommended operating temperature and voltage ranges, and across process distribution. tSKD4 is defined as |Max−Min| differential propagation delay.
(7) fMAX generator input conditions: tr = tf < 1 ns (0% to 100%), 50% duty cycle, differential (1.05-V to 1.35-V peak to peak). Output criteria: 60 / 40% duty cycle, VOL (maximum 0.4 V), VOH (minimum 2.7 V), Load = 15 pF (stray plus probes).