NXP Semiconductors MPC5746R - Page 44

Table 23. LFAST transmitter electrical characteristics (continued)
Symbol Parameter Conditions
Value
Unit
Min Typ Max
C
L
External lumped differential load capacitance
1
V
DD_HV_IO
= 4.5 V — — 10.0 pF
V
DD_HV_IO
= 3.0 V — — 8.5
I
LVDS_TX
Transmitter DC current consumption Enabled — — 3.2 mA
1. Valid for maximum data rate f
DATA
. Value given is the capacitance on each terminal of the differential pair, as shown in the
figure below.
2. Valid for maximum external load C
L
.
3. The LFAST and High-Speed Debug LFAST pad electrical characteristics are based on worst case internal capacitance
values.
4. All LFAST and High-Speed Debug LVDS pad electrical characteristics are valid from -40 °C to 150 °C.
The MSC and DSPI LVDS pad electrical characteristics are based on the application
circuit and typical worst case internal capacitance values given in Figure 14.
All MSC and DSPI LVDS pad electrical characteristics are valid from -40 °C to 150 °C.
Table 24. MSC/DSPI LVDS transmitter electrical characteristics
Symbol Parameter Conditions
Value
Unit
Min Typ Max
Data Rate
f
DATA
Data rate — — — 80 Mbps
V
OS
Common mode voltage — 1.08 — 1.32 V
|
VOD
| Differential output voltage swing (terminated)
1, 2
— 150 200 400 mV
t
TR
Rise/Fall time (10%–90% of swing)
3, 4
— 0.8 — 5.7 ns
C
L
External lumped differential load capacitance
3
V
DD_HV_IO
= 4.5 V — — 40 pF
V
DD_HV_IO
= 3.0 V — — 30
I
LVDS_TX
Transmitter DC current consumption Enabled — — 4.0 mA
1. Valid for maximum data rate f
DATA
. Value given is the capacitance on each terminal of the differential pair, as shown in the
figure below.
2. Valid for maximum external load C
L
.
3. The LFAST and High-Speed Debug LFAST pad electrical characteristics are based on worst case internal capacitance
values.
4. All LFAST and High-Speed Debug LVDS pad electrical characteristics are valid from -40 °C to 150 °C.
NOTE
For optimum LVDS performance, it is recommended to set the
neighbouring GPIO pads to use Weak Drive.
LVDS fast asynchronous serial transmission (LFAST) pad electrical characteristics
SPC5746R Microcontroller Data Sheet, Rev. 6, 06/2017
44 NXP Semiconductors