鈥?/div>
12.4 SPECint95, 8.4 SPECfp95 at 266 MHz (TSPC750A) with 1 MB L2 at 133 MHz
11.5 SPECint95, 6.9 SPECfp95 at 266 MHz (TSPC740A)
488 MIPS at 266 MHz
Selectable Bus Clock (11 CPU Bus Dividers up to 8x)
P
D
Typical 4.2 W at 200 MHz, Full Operating Conditions
Nap, Doze and Sleep Modes for Power Savings
Superscalar (3 Instructions per Clock Cycle)
4-GByte Direct Addressing Range
64-bit Data and 32-bit Address Bus Interface
32 KB Instruction and Data Cache
Six Independent Execution Units and Two Register Files
Write-back and Write-through Operations
f
int
max = 266 MHz
f
bus
max = 83.3 MHz
Compatible CMOS Input / TTL Output
Description
The TSPC750A and TSPC740A microprocessor (after named 750A/740A) are low-
power implementations of the PowerPC Reduced Instruction Set Computer (RISC)
architecture.
The 750A/740A microprocessors鈥?designs are superscalar, capable of issuing three
instructions per clock cycle into six independent execution units.
The 740A/750A microprocessors use a 2.6/3.3V CMOS process technology and
maintain full interface compatibility with TTL devices.
The 750A/740A provide four software controllable power-saving modes and a thermal
assist unit management.
The 750A/740A microprocessors have separate 32K byte, physically-addressed
instruction and data caches and differ only in that the 750A features a dedicated L2
cache interface with L2 on-chip tags.
Both are software and bus-compatible with the PowerPC 603
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and PowerPC 604
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families, and are fully JTAG compliant.
The TSPC740A microprocessor is pin compatible with the TSPC603e family.
PowerPC
750A/740A RISC
Microprocessor
Family PID8t-
750A/740A
Specification
TSPC750A/740A
G suffix
CBGA255 and CBGA360
Ceramic Ball Grid Array
GS suffix
CI-CBGA255 and CI-CBGA360
Ceramic Ball Grid Array
with Solder Column Interposer (SCI)
Rev. 2128A鈥揌IREL鈥?1/02
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