Part Number: PA51SND1-BD
Description:
For programming Atmel AT89C51SND1 in 40 pin Atmel spec'd footprint.
Price: ￥51,500
PDF Datasheet: 51sn81bd.pdf

Top Side; Pins: 80 Pitch: 0.8mm
Bottom Side; Pins: 40 Pitch: 0.100"