Semiconductor & Computer Engineering
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VL86C020 - VTI
| Edit Values | |||||||||
| VL86C020 | |||||||||
| General Info | |||||||||
| Designer | Acorn Computers | ||||||||
| Manufacturer | VLSI Technology, Sanyo | ||||||||
| Model Number | VL86C020 | ||||||||
| Part Number | VL86C020-20FC, VL86C020-20GC, VY86C020-20FC, VY86C020-20GC, VY86C020-25FC, VY86C020-35PSGC | ||||||||
| Market | Embedded, Desktop | ||||||||
| Introduction | 1989 (launched) | ||||||||
| General Specs | |||||||||
| Family | VL86Cx | ||||||||
| Frequency | 20 MHz, 25 MHz, 33 MHz, 36 MHz | ||||||||
| Microarchitecture | |||||||||
| ISA | ARMv2a (ARM) | ||||||||
| Microarchitecture | ARM3 | ||||||||
| Chipset | MEMC, VIDC, IOC | ||||||||
| Process | 1.5 µm | ||||||||
| Transistors | 309,656 | ||||||||
| Technology | CMOS | ||||||||
| Die | 86.764 mm² 8.72 mm × 9.95 mm | ||||||||
| Word Size | 32 bit | ||||||||
| Cores | 1 | ||||||||
| Threads | 1 | ||||||||
| Max Memory | 64 MiB | ||||||||
| Max Address Mem | 0x3FFFFFF | ||||||||
| Multiprocessing | |||||||||
| Max SMP | 1-Way (Uniprocessor) | ||||||||
| Electrical | |||||||||
| Power dissipation | 2 W | ||||||||
| Vcore | 5 ± 5 % | ||||||||
| Tstorage | -65 °C – -150 °C | ||||||||
| Tambient | -10 °C – 80 °C | ||||||||
| Packaging | |||||||||
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VL86C020 is a 32-bit ARM microprocessor designed by Acorn and introduce by VTI in 1989. This processor is based on the ARM3 microarchitecture and was Acorn's second commercial ARM processor. This chip was manufactured on VLSI's 1.5 µm process and supplied as a 20, 25, 33, or 35 MHz part.
This processor operates performs at over three times the performance of its predecessor thanks to its higher clock speed and on-die cache.
Contents
Cache[edit]
- Main article: ARM3 § Cache
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Cache Organization
Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes. |
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Second source[edit]
This microprocessor was second-sourced by Sanyo.
Systems[edit]
- Acorn Archimedes A500, 1987
- Acorn Archimedes A540, 1990
- Acorn R225, 1990
- Acorn R260, 1990
- Acorn Archimedes A5000, 1991
- Acorn A4, 1992
- Acorn Archimedes A5000 (Alpha), 1993
Note: The A500 predates the actual chip introduction because it was never commercially sold.
Datasheet[edit]
- VL86C020 Datasheet, 1990
Facts about "VL86C020 - VTI"
| Has subobject "Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki. | VL86C020 - VTI#package + |
| base frequency | 20 MHz (0.02 GHz, 20,000 kHz) +, 25 MHz (0.025 GHz, 25,000 kHz) +, 33 MHz (0.033 GHz, 33,000 kHz) + and 36 MHz (0.036 GHz, 36,000 kHz) + |
| chipset | MEMC +, VIDC + and IOC + |
| core count | 1 + |
| core voltage | 5 V (50 dV, 500 cV, 5,000 mV) + |
| core voltage tolerance | 5 % + |
| designer | Acorn Computers + |
| die area | 86.764 mm² (0.134 in², 0.868 cm², 86,764,000 µm²) + |
| die length | 8.72 mm (0.872 cm, 0.343 in, 8,720 µm) + |
| die width | 9.95 mm (0.995 cm, 0.392 in, 9,950 µm) + |
| family | VL86Cx + |
| first launched | 1989 + |
| full page name | vti/vl86cx/vl86c020 + |
| instance of | microprocessor + |
| isa | ARMv2a + |
| isa family | ARM + |
| l1$ description | 64-way set associative + |
| l1$ size | 4 KiB (4,096 B, 0.00391 MiB) + |
| ldate | 1989 + |
| manufacturer | VLSI Technology + and Sanyo + |
| market segment | Embedded + and Desktop + |
| max ambient temperature | 353.15 K (80 °C, 176 °F, 635.67 °R) + |
| max cpu count | 1 + |
| max memory | 64 MiB (65,536 KiB, 67,108,864 B, 0.0625 GiB, 6.103516e-5 TiB) + |
| max memory address | 0x3FFFFFF + |
| max storage temperature | 123.15 K (-150 °C, -238 °F, 221.67 °R) + |
| microarchitecture | ARM3 + |
| min ambient temperature | 263.15 K (-10 °C, 14 °F, 473.67 °R) + |
| min storage temperature | 208.15 K (-65 °C, -85 °F, 374.67 °R) + |
| model number | VL86C020 + |
| name | VL86C020 + |
| package | PQFP-160 + and PGA-160 + |
| part number | VL86C020-20FC +, VL86C020-20GC +, VY86C020-20FC +, VY86C020-20GC +, VY86C020-25FC + and VY86C020-35PSGC + |
| power dissipation | 2 W (2,000 mW, 0.00268 hp, 0.002 kW) + |
| process | 1,500 nm (1.5 μm, 0.0015 mm) + |
| smp max ways | 1 + |
| technology | CMOS + |
| thread count | 1 + |
| transistor count | 309,656 + |
| used by | Acorn Archimedes A500 +, Acorn Archimedes A540 +, Acorn R225 +, Acorn R260 +, Acorn Archimedes A5000 +, Acorn A4 + and Acorn Archimedes A5000 (Alpha) + |
| word size | 32 bit (4 octets, 8 nibbles) + |