Overview
The BL15721B is a latche made by BL in a SOP-16 package with 16 pins. -25℃~+85℃ 3.25V 480uA UART SOP-16 Interface - Specialized ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:BL15721B, from EasyEDA) and its footprint (Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C918910).
Symbol
Footprint
Parameters
6- Data Rate
- 9.6Kbps
- Features
- Interrupt generation
- Interface
- UART
- Operating Temperature
- -25℃~+85℃
- Supply Current
- 480uA
- Voltage - Supply
- 3.25V
Order codes
1- BL15721BLCSC C918910
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | BUSL2 | Unspecified |
| 2 | VB | Unspecified |
| 3 | STC | Unspecified |
| 4 | RIDD | Unspecified |
| 5 | PF | Unspecified |
| 6 | SC | Unspecified |
| 7 | TXI | Unspecified |
| 8 | TX | Unspecified |
| 9 | BAT | Unspecified |
| 10 | VS | Unspecified |
| 11 | VDD | Unspecified |
| 12 | RX | Unspecified |
| 13 | RXI | Unspecified |
| 14 | RIS | Unspecified |
| 15 | GND | Unspecified |
| 16 | BUSKL1 | Unspecified |
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Is there a KiCad symbol and footprint for the BL15721B?
Yes. The symbol is EasyEDA_Cloud:BL15721B and the footprint Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BL15721B?
SOP-16, with 16 pins. Its footprint is drawn on this page.
Where is the BL15721B datasheet?
BL publishes it: the Datasheet link on this page opens it.
Where can I order the BL15721B?
JLCPCB lists it as part C918910, with 0 in stock; the sellers' links on this page open their listings.
What can replace the BL15721B?
Parts like it in the library: the CD4044BDR by Texas Instruments, the CD4043NS16ARDQ by GR, the 74HC259D by MDD and the SN74LS279ADR(LX) by lingxingic. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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