TS68882MR1-20 E2V, TS68882MR1-20 Datasheet - Page 3

• Manufacturer Part Number: TS68882MR1-20
• Manufacturer: E2V

Specifications of TS68882MR1-20

• Operating Temperature (max): 125C
• Operating Temperature Classification: Military
• Lead Free Status / RoHS Status: Not Compliant

TS68882
The CCU contains special-purpose hardware that performs conversions between the single, double, and
extended precision memory data formula and the internal data format used by the ECU. It also contains
a state machine that controls communications with the main processor during co-processor interface
dialogs.
The eight 80-bit floating-point data registers (FP0-FP7) are located in the ECU. In addition to these reg-
isters, the ECU contains a high-speed 67-bit arithmetic unit used for both mantissa and exponent
calculations, a barrel shifter that can shift from 1-bit to 67-bits in one machine cycle, and ROM constants
(for use by the internal algorithms or user programs).
The MCU contains the clock generator, a two-level microcoded sequencer that controls the ECU, the
microcode ROM, and self-test circuitry. The built-in self-test capabilities of the TS68882 enhance reliabil-
ity and ease manufacturing requirements; however, these diagnostic functions are not available to the
user.
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0852B–HIREL–06/07
e2v semiconductors SAS 2007