Microcomputer
VR SeriesTM
Type number Alias
Features
Address/
data bus
Virtual memory
space
Performance
Package
µP D3 0 4 0 0
• 64-bit architecture
• 2 operation per 1 clock execution with
superpipelined processing
• On chip floating point processing unit
VR4000PCTM • On chip primary cache memory
(instruction 8K + data 8K Byte)
• Software uppered compatible with
VR3000A
• Internal 100 MHz, external 50 MHz
operation
36/64
Kernel: 16EXA
41 SPEC int92
bytes
43 SPEC fp92 • 179-pin PGA
User : 64G bytes (Internal 100 MHz)
µP D3 0 4 0 1
• Same function with VR4000PC,
furthermore on chip secondary cache
VR4000SCTM memory controller supported
• Internal 100 MHz, external 50 MHz
operation
36/64
Kernel: 16EXA
62 SPEC int92
bytes
63 SPEC fp92 • 447-pin PGA
User : 64G bytes (Internal 100 MHz)
µP D3 0 4 1 0
• VR4000PC compatible
• On chip primary cache (I16KB + D16KB)
VR4400PCTM • Internal 200 MHz, external 100 MHz
operation5
36/64
Kernel: 16EXA
83 SPEC int92
bytes
92 SPEC fp92 • 179-pin PGA
User : 64G bytes (Internal 200 MHz)
µP D3 0 4 1 2
• Same function with VR4400PC,
furthermore on chip secondary cache
VR4400MCTM memory controller and correspond to
multiprocessing system supported
36/64
Kernel: 16EXA
141 SPEC int92
bytes
143 SPEC fp92 • 447-pin PGA
User : 64G bytes (Internal 200 MHz)
µP D3 0 4 5 0
VR4200TM
• VR4000PC compatible
• Low power (1.5 W typ)
• On chip primary cache (I16KB + D8KB)
• Internal 80 MHz, external 40 MHz
operation
33/64
Kernel: 16EXA
bytes
User : 8G bytes
55 SPEC int92 • 208-pin QFP
30 SPEC fp92 • 179-pin PGA
(Internal 80 MHz)
µPD301005
VR4100TM
• Low poewr (100 mW @33 MHz, 2.2 V)
• 2 level power management
• 64 bit architecture
• On chip MMU
32/32
Kernel: 16EXA
bytes
User : 4G bytes
40 MIPS
• 100-pin QFP
(Internal 133 MHz)
µPD302005
VR4300TM
• High speed operation from 100 MHz
pipe
• Large on chip cache I16K + D8K byte
• 64 bit architecture
• High speed floating operation
• On chip MMU
32/32
Kernel: 16EXA
bytes
User : 4G bytes
70 SPEC int
45 SPEC fp92
• 120-pin QFP
(Internal 100 MHz)
5: Under development
60