
Overview
The AT89LP52-20JU is a microcontroller made by Microchip Technology in a PLCC-44(16.6x16.6) package with 44 pins. 2.4V~5.5V 20MHz 36 51 Family 8KB PLCC-44(16.6x16.6) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AT89LP52-20JU, from EasyEDA) and its footprint (EasyEDA_Cloud:PLCC-44_L16.6-W16.6-P1.27-LS17.5-T, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C145581).
Symbol
Footprint
Parameters
11- CPU Core
- 51 Series
- CPU Maximum Speed
- 20MHz
- Core Size
- 8 Bit
- Features
- Power-on reset (POR), Undervoltage detection (BOR/LVD/LVR/LVI), Watchdog reset, Software reset, External pin reset (NRST), Built-in general-purpose timer, Programmable watchdog
- Number of I/O
- 36
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in
- Program Memory Type
- FLASH
- Program Storage Size
- 8KB
- RAM Size
- 256Byte
- Voltage - Supply
- 2.4V~5.5V
Order codes
1- AT89LP52-20JULCSC C145581
Pinout
44| Pin | Name | Type |
|---|---|---|
| 1 | *NC | Unspecified |
| 2 | P1.0(T2) | Unspecified |
| 3 | P1.1(T2EX) | Unspecified |
| 4 | P1.2 | Unspecified |
| 5 | P1.3 | Unspecified |
| 6 | P1.4 | Unspecified |
| 7 | (MOSI)P1.5 | Unspecified |
| 8 | (MISO)P1.6 | Unspecified |
| 9 | (SCK)P1.7 | Unspecified |
| 10 | RST | Unspecified |
| 11 | (RXD)P3.0 | Unspecified |
| 12 | *NC | Unspecified |
| 13 | (TXD)P3.1 | Unspecified |
| 14 | (INT0#)P3.2 | Unspecified |
| 15 | (INT1#)P3.3 | Unspecified |
| 16 | (T0)P3.4 | Unspecified |
| 17 | (T1)P3.5 | Unspecified |
| 18 | (WR#)P3.6 | Unspecified |
| 19 | (RD#)P3.7 | Unspecified |
| 20 | (XTAL2)P4.7 | Unspecified |
| 21 | (XTAL1)P4.6 | Unspecified |
| 22 | GND | Unspecified |
| 23 | *NC | Unspecified |
| 24 | (A8)P2.0 | Unspecified |
| 25 | (A9)P2.1 | Unspecified |
| 26 | (A10)P2.2 | Unspecified |
| 27 | (A11)P2.3 | Unspecified |
| 28 | (A12)P2.4 | Unspecified |
| 29 | P2.5(A13) | Unspecified |
| 30 | P2.6(A14) | Unspecified |
| 31 | P2.7(A15) | Unspecified |
| 32 | P4.5(PSEN#) | Unspecified |
| 33 | P4.4(ALE) | Unspecified |
| 34 | *NC | Unspecified |
| 35 | POL | Unspecified |
| 36 | P0.7(AD7) | Unspecified |
| 37 | P0.6(AD6) | Unspecified |
| 38 | P0.5(AD5) | Unspecified |
| 39 | P0.4(AD4) | Unspecified |
| 40 | P0.3(AD3) | Unspecified |
| 41 | P0.2(AD2) | Unspecified |
| 42 | P0.1(AD1) | Unspecified |
| 43 | P0.0(AD0) | Unspecified |
| 44 | VCC | Unspecified |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/microchip/AT89LP52-20JU" title="AT89LP52-20JU in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/AT89LP52-20JU.jpg" alt="AT89LP52-20JU" width="1200" height="900">[](https://pcbkit.io/parts/microchip/AT89LP52-20JU)Questions
Is there a KiCad symbol and footprint for the AT89LP52-20JU?
Yes. The symbol is EasyEDA_Cloud:AT89LP52-20JU and the footprint EasyEDA_Cloud:PLCC-44_L16.6-W16.6-P1.27-LS17.5-T, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the AT89LP52-20JU?
PLCC-44(16.6x16.6), with 44 pins. Its footprint is drawn on this page.
Where is the AT89LP52-20JU datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the AT89LP52-20JU?
JLCPCB lists it as part C145581, with 0 in stock; the sellers' links on this page open their listings.
What can replace the AT89LP52-20JU?
Parts like it in the library: the AT89S52-24JU by Microchip Technology, the AT80C51RD2-SLRUM by Microchip Technology, the AT89C51CC03UA-SLSUM by Microchip Technology and the AT89LP51IC2-20JU by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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