DS32EL0421, DS32ELX0421

SNLS282F – MAY 2008 – REVISED APRIL 2013

www.ti.com

PIN DESCRIPTIONS (continued)

Pin Name

Pin Number

I/O, Type

Description

LVDS Parallel Data Bus

TxCLKIN+

37

I, LVDS

Serializer input clock. TxCLKIN+/- are the inverting and non-inverting LVDS transmit clock input

TxCLKIN-

38

pins.

TxIN[4:0]+/-

39, 40,

I, LVDS

Serializer input data. TxIN[4:0]+/- are the inverting and non-inverting LVDS serializer input data

41, 42,

pins.

43, 44,

45, 46,

47, 48

LVCMOS Control Pins

DC_B

5

I,

DC-balance and Remote Sense pins. See Device Configuration section DEVICE

RS

6

LVCMOS

CONFIGURATION for device behavior.

DE_EMPH0

9

I,

DE_EMPH0, DE_EMPH1 select the output de-emphasis level. These pins are internally pull-

DE_EMPH1

10

LVCMOS

down.

00: Off

01: Low

10: Medium

11: Maximum

TXOUT1_EN

12

I,

DS32ELX0421 ONLY. When held high, redundant output TxOUT1+/- is enabled. This pin must

LVCMOS

be tied high when using TxOUT1+/-.

RESET

30

I,

When held low, reset the device.

LVCMOS

0 = Device Reset

1 = Normal operation

LOCK

31

O,

Lock indication output. The input data on TxIN[0:4]+/- pins is ignored when LOCK pin is high.

LVCMOS

SMBus Interface

SCK

33

I/O,

SMBus compatible clock.

SMBus

SDA

32

I/O,

SMBus compatible data line.

SMBus

SMB_CS

34

I, SMBus

SMBus chip select. When held high, SMBus management control is enabled.

Other

GPIO0

3

I/O,

Software configurable I/O pin.

LVCMOS

GPIO1

4

I/O,

Software configurable I/O pin.

LVCMOS

GPIO2

11

I/O,

Software configurable I/O pin.

LVCMOS

NC

2, 8, 12, 13,

Misc.

No Connect, for DS32EL0421

19, 20, 21,

22, 23, 24,

29

2, 8, 13, 21,

Misc.

No Connect, for DS32ELX0421

22, 23, 24,

29

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

4

Submit Documentation Feedback

Copyright © 2008–2013, Texas Instruments Incorporated

Product Folder Links: DS32EL0421 DS32ELX0421