Overview
The AS2522B is a telecom Interface IC made by Advanced Monolithic Systems in a TQFP-32(7x7) package with 32 pins. TQFP-32(7x7) Telecom Interface ICs ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AS2522B, from EasyEDA) and its footprint (Package_QFP:TQFP-32_7x7mm_P0.8mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2676679).
Symbol
Footprint
Parameters
1- Features
- DTMF detection
Order codes
1- AS2522BLCSC C2676679
Pinout
32| Pin | Name | Type |
|---|---|---|
| 1 | FT1 | Unspecified |
| 2 | FT2 | Unspecified |
| 3 | M4 | Unspecified |
| 4 | M2 | Unspecified |
| 5 | M3 | Unspecified |
| 6 | M1 | Unspecified |
| 7 | STB | Unspecified |
| 8 | CS | Unspecified |
| 9 | VSS | Unspecified |
| 10 | LI | Unspecified |
| 11 | RI | Unspecified |
| 12 | SS | Unspecified |
| 13 | LS | Unspecified |
| 14 | CI | Unspecified |
| 15 | RECI | Unspecified |
| 16 | RECV | Unspecified |
| 17 | RO | Unspecified |
| 18 | VDD | Unspecified |
| 19 | AGND | Unspecified |
| 20 | CBN | Unspecified |
| 21 | CM | Unspecified |
| 22 | VPP | Unspecified |
| 23 | LO2 | Unspecified |
| 24 | LO1 | Unspecified |
| 25 | VSSA | Unspecified |
| 26 | VDDD | Unspecified |
| 27 | xCS | Unspecified |
| 28 | DO | Unspecified |
| 29 | DI | Unspecified |
| 30 | CLK | Unspecified |
| 31 | OSC | Unspecified |
| 32 | VSSD | Unspecified |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/ams/AS2522B" title="AS2522B in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ams/AS2522B.jpg" alt="AS2522B" width="1200" height="900">[](https://pcbkit.io/parts/ams/AS2522B)Questions
Is there a KiCad symbol and footprint for the AS2522B?
Yes. The symbol is EasyEDA_Cloud:AS2522B and the footprint Package_QFP:TQFP-32_7x7mm_P0.8mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the AS2522B?
TQFP-32(7x7), with 32 pins. Its footprint is drawn on this page.
Where can I order the AS2522B?
JLCPCB lists it as part C2676679, with 0 in stock; the sellers' links on this page open their listings.
What can replace the AS2522B?
Parts like it in the library: the DS2172T+TR by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.
