PA51-DP-PP
PA51-DP-PP – 40-Pin DIP Socket to PLCC Emulator Adapter (8051 Family)
Overview
PA51-DP-PP is a PLCC emulator adapter designed for Intel 8051-family microcontrollers and compatible devices. As a result, engineers can evaluate 40-pin DIP 8051 devices using systems that require a PLCC emulator interface.
On the top side, the adapter provides a 40-pin DIP socket on 0.100″ (2.54 mm) pitch. Therefore, it accepts standard 8051-family DIP devices used in firmware development, emulation, and validation workflows.
On the bottom side, the adapter presents a PLCC plug interface. Consequently, it inserts directly into PLCC emulator sockets without additional cabling.
This adapter uses device-specific wiring rather than full 1:1 pin mapping. Instead, it aligns 8051 port, control, oscillator, and programming signals to the PLCC footprint. The Adapter Wiring table below lists the exact connections.
Technical Specifications
- Part Number: PA51-DP-PP
- Adapter Type: PLCC Emulator Adapter
- Top Interface: DIP-40 socket, 0.100″ (2.54 mm) pitch
- Bottom Interface: PLCC plug
- Wiring Configuration: 8051-family specific wiring (see Adapter Wiring)
- Device Support: 8051 family and compatible microcontrollers
- Pitch: DIP side 0.100″ (2.54 mm); PLCC side 0.050″ (1.27 mm)
- JEDEC Reference: PLCC package (device dependent)
- Mount Interface: PLCC plug insertion
- Typical Applications: Microcontroller emulation, firmware development, lab validation
- Compatibility: PLCC emulator sockets supporting 8051 workflows
Adapter Wiring
The following chart shows the connections from the DIP device to the adapter’s PLCC plug. The wiring is presented in a six-column format for direct comparison.
The left half of the table lists Device pins and signals mapped to corresponding PLCC Plug pins. In parallel, the right half maps additional PLCC Plug pins back to their associated Device pins and signals.
| Device | Signal | Plug | Plug | Signal | Device |
|---|---|---|---|---|---|
| – | NC | 1 | – | NC | 23 |
| 1 | P1.0 | 2 | 22 | P2.0 | 24 |
| 2 | P1.1 | 3 | 23 | P2.1 | 25 |
| 3 | P1.2 | 4 | 24 | P2.2 | 26 |
| 4 | P1.3 | 5 | 25 | P2.3 | 27 |
| 5 | P1.4 | 6 | 26 | P2.4 | 28 |
| 6 | P1.5 | 7 | 27 | P2.5 | 29 |
| 7 | P1.6 | 8 | 28 | P2.6 | 30 |
| 8 | P1.7 | 9 | 29 | P2.7 | 31 |
| 9 | RST | 10 | 30 | PSEN | 32 |
| 10 | P3.0 | 11 | 31 | ALE/PROG | 33 |
| – | NC | 12 | 32 | NC | 34 |
| 11 | P3.1 | 13 | 33 | EA-/Vpp | 35 |
| 12 | P3.2 | 14 | 34 | P0.7 | 36 |
| 13 | P3.3 | 15 | 35 | P0.6 | 37 |
| 14 | P3.4 | 16 | 36 | P0.5 | 38 |
| 15 | P3.5 | 17 | 37 | P0.4 | 39 |
| 16 | P3.6 | 18 | 38 | P0.3 | 40 |
| 17 | P3.7 | 19 | 39 | P0.2 | 41 |
| 18 | XTAL1 | 20 | 40 | P0.1 | 42 |
| 19 | XTAL2 | 21 | 41 | P0.0 | 43 |
| 20 | Vss | 22 | 44 | Vcc | 44 |
Key Features
- DIP-40 socket supports standard 8051-family devices
- PLCC plug interfaces directly with emulator sockets
- Device-specific wiring for ports, control, and programming signals
- Suitable for repeated lab and emulation use
Applications
- 8051 microcontroller emulation
- Firmware development and debugging
- Legacy device validation
- Engineering and laboratory testing
Package Includes
- One PA51-DP-PP DIP-40 socket to PLCC emulator adapter
Compatibility Note
This adapter does not use 1:1 wiring. Instead, it implements 8051-family pin mapping as shown in the Adapter Wiring table. Verify device and emulator compatibility before use.
Why Choose This Adapter
PA51-DP-PP provides documented wiring for reliable 8051 emulation in PLCC-based systems. Moreover, it simplifies development and testing of legacy microcontrollers.
Streamline Your Workflow
Use this adapter to integrate DIP-based 8051 devices into PLCC emulator environments efficiently.
$125.00





