Skip to the content
PCBKitNew board
LE57D122BTCT on a board, in 3D

LE57D122BTCT

Microchip Technology

-40℃~+85℃ 4.75V~5.25V 540mW Subscriber Line Interface (SLIC) Thermal shutdown protection、Multi-channel integration TQFP-44-EP(10x10) Telecom Interface ICs ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/LE57D122BTCT
Category
Telecom Interface ICs
Package
TQFP-44-EP(10x10)
Pins
45

Overview

The LE57D122BTCT is a telecom Interface IC made by Microchip Technology in a TQFP-44-EP(10x10) package with 45 pins. -40℃~+85℃ 4.75V~5.25V 540mW Subscriber Line Interface (SLIC) Thermal shutdown protection、Multi-channel integration TQFP-44-EP(10x10) Telecom Interface ICs ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LE57D122BTC, from EasyEDA) and its footprint (EasyEDA_Cloud:TQFP-44_L10.0-W10.0-P0.80-LS12.0-BL-EP5.3, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2676794).

Symbol

C211C112C313AGND/DGND4VCC5RD6CAS7IREF8C129C2210DET2#11CDC212C3213RSN214NC15VTX216NC17NC18FLT2#19NC20HP221TMG222BGND223BD224AD225DB226VBAT27NC28DAC29DB130AD131BD132BGND133TMG134HP135NC36FLT1#37VBREF38NC39VTX140NC41RSN142CDC143DET1#44EP45
EasyEDA_Cloud:LE57D122BTCFrom EasyEDA

Footprint

123456789101112131415161718192021222324252627282930313233343536373839404142434445
EasyEDA_Cloud:TQFP-44_L10.0-W10.0-P0.80-LS12.0-BL-EP5.3From EasyEDA

Parameters

5
Features
Multi-channel integration；Thermal shutdown protection
Operating Temperature
-40℃~+85℃
Power(Watts)
540mW
Type
Subscriber Line Interface (SLIC)
Voltage - Supply
4.75V~5.25V

Order codes

1

Pinout

45
The pins of the LE57D122BTCT
PinNameType
1C21Unspecified
2C11Unspecified
3C31Unspecified
4AGND/DGNDUnspecified
5VCCUnspecified
6RDUnspecified
7CASUnspecified
8IREFUnspecified
9C12Unspecified
10C22Unspecified
11DET2#Unspecified
12CDC2Unspecified
13C32Unspecified
14RSN2Unspecified
15NCUnspecified
16VTX2Unspecified
17NCUnspecified
18NCUnspecified
19FLT2#Unspecified
20NCUnspecified
21HP2Unspecified
22TMG2Unspecified
23BGND2Unspecified
24BD2Unspecified
25AD2Unspecified
26DB2Unspecified
27VBATUnspecified
28NCUnspecified
29DACUnspecified
30DB1Unspecified
31AD1Unspecified
32BD1Unspecified
33BGND1Unspecified
34TMG1Unspecified
35HP1Unspecified
36NCUnspecified
37FLT1#Unspecified
38VBREFUnspecified
39NCUnspecified
40VTX1Unspecified
41NCUnspecified
42RSN1Unspecified
43CDC1Unspecified
44DET1#Unspecified
45EPUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/microchip/LE57D122BTCT" title="LE57D122BTCT in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/microchip/LE57D122BTCT.jpg" alt="LE57D122BTCT" width="1200" height="900">
A picture that opens the part, for a README
[![LE57D122BTCT](https://pcbkit.io/embed/parts/microchip/LE57D122BTCT.jpg?size=s)](https://pcbkit.io/parts/microchip/LE57D122BTCT)

Questions

Is there a KiCad symbol and footprint for the LE57D122BTCT?

Yes. The symbol is EasyEDA_Cloud:LE57D122BTC and the footprint EasyEDA_Cloud:TQFP-44_L10.0-W10.0-P0.80-LS12.0-BL-EP5.3, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LE57D122BTCT?

TQFP-44-EP(10x10), with 45 pins. Its footprint is drawn on this page.

Where is the LE57D122BTCT datasheet?

Microchip Technology publishes it: the Datasheet link on this page opens it.

Where can I order the LE57D122BTCT?

JLCPCB lists it as part C2676794, with 0 in stock; the sellers' links on this page open their listings.

What can replace the LE57D122BTCT?

Parts like it in the library: the LE57D111BTC by Microchip Technology, the LE57D111BTCT by Microchip Technology, the LE57D121BTCT by Microchip Technology and the LE57D122BTC by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

4