Table 7-3 shows SLR (slew rate select) pin functionality. SLR has integrated pull-down, so the device remains in

higher speed mode until SLR is pulled high which limits the slew rate and puts the device in slower speed mode.

Table 7-3. SLR pin control

Device

Functionality w.r.t SLR pin

THVD2410V-EP

SLR = Low or floating: Both transmitter (TX) and receiver (RX)

maximum speed is 1Mbps

SLR = High: Both TX and RX maximum speed is limited to 250kbps

THVD2450V-EP, THVD2452V-EP

SLR = Low or floating: Both transmitter (TX) and receiver (RX)

maximum speed is 50Mbps

SLR = High: Both TX and RX maximum speed is limited to 20Mbps

Table 7-4 shows the device behavior in undervoltage scenarios:

Table 7-4. Supply Function Table

Supply Function Table

VIO

Driver Output

Receiver Output

> UVVCC(rising)

> UVVIO(rising)

Determined by DE and D inputs

Determined by RE and A-B

< UVVCC(falling)

> UVVIO(rising)

High impedance

High impedance

> UVVCC(rising)

< UVVIO(falling)

High impedance

High impedance

< UVVCC(falling)

< UVVIO(falling)

High impedance

High impedance

THVD2410V-EP, THVD2450V-EP, THVD2452V-EP

SLLSFQ9B – MAY 2024 – REVISED OCTOBER 2024

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