Overview
The LE9540DUQCT is a telecom Interface IC made by Microchip Technology in a QFN-40-EP(6x6) package with 41 pins. 3.3V Subscriber Line Interface (SLIC) QFN-40-EP(6x6) Telecom Interface ICs ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LE9540CUQCT, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-40_L6.0-W6.0-P0.50-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2651984).
Symbol
Footprint
Parameters
3- Features
- Multi-channel integration；Thermal shutdown protection
- Type
- Subscriber Line Interface (SLIC)
- Voltage - Supply
- 3.3V
Order codes
1- LE9540DUQCTLCSC C2651984
Pinout
41| Pin | Name | Type |
|---|---|---|
| 1 | VBAT_1 | Unspecified |
| 2 | DCF_1 | Unspecified |
| 3 | VREF_1 | Unspecified |
| 4 | RINGP_1 | Unspecified |
| 5 | RCVP_1 | Unspecified |
| 6 | RN_1 | Unspecified |
| 7 | VITR_1 | Unspecified |
| 8 | TXI_1 | Unspecified |
| 9 | VTX_1 | Unspecified |
| 10 | ITR_1 | Unspecified |
| 11 | RTFLT_1 | Unspecified |
| 12 | RESET | Unspecified |
| 13 | EN | Unspecified |
| 14 | CLK | Unspecified |
| 15 | VDD | Unspecified |
| 16 | VCC | Unspecified |
| 17 | DIN | Unspecified |
| 18 | DOUT | Unspecified |
| 19 | RTFLT_2 | Unspecified |
| 20 | IREF | Unspecified |
| 21 | ITR_2 | Unspecified |
| 22 | VTX_2 | Unspecified |
| 23 | TXI_2 | Unspecified |
| 24 | VITR_2 | Unspecified |
| 25 | RN_2 | Unspecified |
| 26 | RCVP_2 | Unspecified |
| 27 | RINGP_2 | Unspecified |
| 28 | VREF_2 | Unspecified |
| 29 | DCF_2 | Unspecified |
| 30 | VBAT_2 | Unspecified |
| 31 | PR_2 | Unspecified |
| 32 | TLD_2 | Unspecified |
| 33 | PT_2 | Unspecified |
| 34 | GND | Unspecified |
| 35 | RSVD | Unspecified |
| 36 | CPR | Unspecified |
| 37 | RSVD | Unspecified |
| 38 | PT_1 | Unspecified |
| 39 | TLD_1 | Unspecified |
| 40 | PR_1 | Unspecified |
| 41 | EP | Unspecified |
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Is there a KiCad symbol and footprint for the LE9540DUQCT?
Yes. The symbol is EasyEDA_Cloud:LE9540CUQCT and the footprint EasyEDA_Cloud:QFN-40_L6.0-W6.0-P0.50-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LE9540DUQCT?
QFN-40-EP(6x6), with 41 pins. Its footprint is drawn on this page.
Where can I order the LE9540DUQCT?
JLCPCB lists it as part C2651984, with 0 in stock; the sellers' links on this page open their listings.
What can replace the LE9540DUQCT?
Parts like it in the library: the LE9540CUQCT by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
