Motorola 68882

The Motorola 68882 math coprocessor is a floating-point unit (FPU) that was produced by Motorola's Semiconductor Products Sector for use with the Motorola 68020 or 68030 processor.

Features
The 68882 succeeded the Motorola 68881 math coprocessor and featured improved pipelining. The 68881 and 68882 are actually interchangeable between the 68020 and 68030, with 10% performance improvement observed in the 68882.

Macintosh models with 68882 coprocessors
Pin grid array (PGA) version: Plastic leaded chip carrier (PLCC) version: Includes a socket for an optional PLCC version:
 * Macintosh IIx (16 MHz)
 * Macintosh IIfx (16 MHz)
 * Macintosh IIcx (16 MHz)
 * Macintosh IIci (25 MHz)
 * Macintosh IIvx (32 MHz)
 * PowerBook 170/180/165c (25/33/33 MHz)
 * PowerBook 270c (33 MHz)
 * PowerBook Duo Dock II (33 MHz)
 * Macintosh IIvi (16 MHz)
 * Macintosh Color Classic/Color Classic II (16/33 MHz)
 * Macintosh LC III/III+ (25/33 MHz)
 * Macintosh LC 520/550 (25/33 MHz)
 * Macintosh Performa 250/275 (16/33 MHz)
 * Macintosh Performa 450/460 (25/33 MHz)
 * Macintosh Performa 520/550/560 (25/33/33 MHz)
 * Macintosh Performa 600 (32 MHz)
 * PowerBook Duo Dock (25 or 33 MHz)

Third party manufacturers also produced cards with coprocessor sockets for the Macintosh IIsi and 68030-based Macintosh LC series computers that did not have a socket.