The document introduces the features of the FX6805 floating-point calculator.
The document describes the Atmel TS68882, a high-performance floating-point device designed to interface as a co-processor with the Thomson TS68020 or TS68030. It is implemented using HCMOS technology and provides an 80-bit extended precision real data format compliant with the IEEE 754 standard.
The chip features eight general-purpose floating-point registers, a 67-bit arithmetic unit for fast calculations, and special hardware for high-speed conversion between single, double, and extended formats. It supports forty-six instructions including trigonometric and transcendental functions and is available in PGA or CQFP packages operating at frequencies up to 33 MHz.
| Data Format Precision | 80-bit Extended Precision Real Data Format |
|---|---|
| Arithmetic Unit Size | 67-bit Arithmetic Unit |
| Instruction Count | Forty-six Instructions |
| Operating Frequency Range | 16.67, 20, 25 and 33 MHz |
| Operating Temperature Range | -55°C to +125°C |
| Supply Voltage | 5V +/- 10% |
The TS68882 is an enhanced floating-point co-processor designed for use with the TS68000 Family of microprocessors.
The device is available in 16.67, 20, 25 and 33 MHz.
The power supply voltage (Vcc) must be 5V within a 10% tolerance.