Hello! now
tms@lcdchip.com
Motorola MC68882RC20A
- Part No.:
- MC68882RC20A
- Manufacturer:
- Motorola
- Category:
- Specialized ICs
- Package:
- 68-BCPGA
- Description:
- IC FLOATING-POINT CO-PROC 68PGA
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Product Details
MC68882RC20A - Floating-Point Coprocessor
The Motorola MC68882RC20A is a 20 MHz MC68882-family floating-point coprocessor in a 68-position PGA package, designed principally for M68000-family host processor systems.
Family architecture and pin groups are documented in Motorola's MC68882 technical summary. Verify the exact suffix and the controlled package drawing for the supplied device.
Overview
The MC68882 provides hardware floating-point computation for a compatible host processor. Motorola describes it as a coprocessor for MC68020 and MC68030 systems, and also documents peripheral-processor configurations with other M68000-family hosts.
Key Advantages
Implements the binary floating-point operations described by ANSI-IEEE 754-1985.
Integrates through the M68000 coprocessor instruction and bus interface.
Eight general-purpose floating-point registers support 80-bit extended-format values.
Motorola documents 8-, 16- and 32-bit system data-bus configurations.
Feature Summary
The technical summary describes 46 floating-point instructions, including arithmetic and conversion operations.
Integer and floating-point data types include extended-precision real values.
Dedicated registers support rounding modes, exception control and condition reporting.
The original Motorola order list identifies the RC20A PGA option as a 20 MHz grade; apply the matching AC limits.
Package & Footprint
The original Motorola ordering list identifies MC68882RC20A as a PGA device, and the technical summary includes a PGA pin-assignment view. The LCDChip catalog records its original package as 68-BCPGA. Confirm the 68-position pin grid, orientation and mechanical dimensions from the manufacturer's controlled drawing and the actual unit.
- Use the PGA pin assignment, not the leaded-carrier option.
- Check grid spacing and pin-one orientation.
- Inspect package and pins for the supplied lot.
The expected JPG is not currently available on the production site; it is not a verified mechanical drawing.
Pin Functions
The original Motorola technical summary identifies these MC68882 functional signal groups for the PGA option.
Use the numbered manufacturer pin diagram for board-level work. Check signal polarity, strapping and AC timing separately.
Key Specifications
| Full order code | MC68882RC20A |
|---|---|
| Manufacturer | Motorola |
| Function | Enhanced floating-point coprocessor |
| Primary host family | M68000; chiefly MC68020 and MC68030 coprocessor systems |
| Arithmetic standard | ANSI-IEEE 754-1985 binary floating point |
| Floating-point registers | Eight, 80-bit extended format |
| Documented instructions | 46 |
| System data-bus options | 8-, 16- or 32-bit configuration |
| Ordering speed grade | 20 MHz |
| Package option | PGA; catalog class 68-BCPGA |
| Supply-condition reference | 5 V nominal in published family electrical tables |
| Electrical table temperature condition | 0°C to +70°C; confirm exact lot qualification |
Use the 20 MHz timing column and its stated load, supply and temperature conditions. Family features do not establish limits for an unmatched suffix.
Replacement Considerations
Motorola describes MC68882 family compatibility with MC68881, but that statement does not make every order code a board-level drop-in. Compare exact package pinout, 20 MHz timing, voltage, thermal requirements, host coprocessor interface and software exception behavior. No exact LCDChip alternative is asserted here without a verified model-level match.
Manufacturer Information
Motorola issued the original MC68882 technical summary and order information. NXP hosts the historical technical documentation. Use the exact Motorola order code and package marking when confirming a replacement or service unit.
Applications
Hardware floating-point execution in compatible coprocessor systems.
Maintenance of equipment built around MC68882 arithmetic instructions.
Selected M68000-family bus arrangements documented by Motorola.
Replacement assessment for an existing MC68882 PGA socket or board.
Quality & Authenticity
Inspect the complete part marking, PGA body, pin condition, traceability and electrical behavior against original manufacturer documentation. This catalog text does not certify any individual unit's condition or provenance.
FAQ
Is MC68882RC20A a standalone processor?
No. It is a floating-point coprocessor requiring a compatible host and bus interface.
Which clock grade is identified by RC20A?
The Motorola order list identifies RC20A as the 20 MHz PGA option. Confirm the full marking before use.
Can a leaded-carrier MC68882 use this PGA footprint?
No. The package outlines and contact geometries differ.
Is the package artwork verified?
No. The expected production JPG is unavailable; use the manufacturer's package drawing.
Engineering Notice
Verify exact order code, PGA coordinate map, package case, host interface, bus strapping, clock and electrical timing, supply conditions and software behavior before substitution. Do not approve mechanical compatibility from the missing catalog JPG.
MC68882RC20A Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Motorola
- Series:
- -
- Package/Case:
- 68-BCPGA
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Floating-Point Co-Processor
- Applications:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 68-PGA (26.92x26.92)
- Grade:
- -
- Qualification:
- -
- Include Parts
- Popular Search
The following parts include "MC68882RC20A" in Silicon Labs MC68882RC20A.
- Part Number
- Manufacturer
- Package
- Description
- CAP200DG-TL Power Integrations 8-SOIC (0.154", 3.90mm Width) IC AUTOMATIC DISCHARGE 8SO
- ATSHA204A-MAHDA-T Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATSHA204A-SSHDA-T Microchip Technology 8-SOIC (0.154", 3.90mm Width) IC AUTHENTICATION CHIP 8SOIC
- ATSHA204A-STUCZ-T Microchip Technology TO-236-3, SC-59, SOT-23-3 IC AUTHENTICATION CHIP SOT23-3
- ATECC608B-MAHDA-T Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATECC608B-MAHCZ-S Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATECC608B-SSHDA-T Microchip Technology 8-SOIC (0.154", 3.90mm Width) IC AUTHENTICATION CHIP 8SOIC
- ATECC608B-MAHDA-S Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATECC608A-MAHDA-S Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATECC608B-MAVDA-T Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
The following parts are popular search parts in Test and Measurement.
Inventory:796
Please send an inquiry. Send us your inquiry, and we will respond immediately.
