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Am486DX2-66V16B
Am486DX2-66V16BGC
General Info
Designer	AMD
Manufacturer	AMD
Model Number	Am486DX2-66V16B
Part Number	Am486DX2-66V16BHC, Am486DX2-66V16BGC, Am486DX2-66V16BHI, Am486DX2-66V16BGI
Market	Desktop
Introduction	March, 1997 (launched)
Shop	Amazon
General Specs
Family	Am486
Series	Am486DX2V
Frequency	66 MHz
Bus type	FSB
Bus speed	33 MHz
Bus rate	33 MT/s
Clock multiplier	2
Microarchitecture
Microarchitecture	80486
Core Name	486DX2V
Process	350 nm
Technology	CMOS
Word Size	32 bit
Cores	1
Max Memory	4 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
Vcore	3.3 V ± 0.3 V
OP Temperature	0 °C – 85 °C

Am486DX2-66V16B was an Enhanced Am486 microprocessor introduced by AMD in 1997. This processor had a clock multiplier of 2 having base frequency of 100 MHz with a bus frequency of 50 MHz. This model had a write-back cache and double the size of L1 of previous models (16 KB). The Am486DX2-66V8T is an 8 KB version similar to this model. This "Enhanced" Am486 includes some other features such as SMM.

Cache

Main article: 80486 § Cache

Cache Info [Edit Values]
L1$	16 KiB 16,384 B 0.0156 MiB	1x16 KiB 4-way set associative (unified, write-back policy)

Graphics

This chip had no integrated graphics processing unit.

Features

• System Management Mode (SMM)

Packaging

Part Number	Package	Type	Temperature Range
Am486DX2-66V16BHC	SQFP-208	Commercial	0 °C to 85 °C
Am486DX2-66V16BGC	CPGA-168	Commercial	0 °C to 85 °C
Am486DX2-66V16BHI	SQFP-208	Industrial	-40 °C to 100 °C
Am486DX2-66V16BGI	CPGA-168	Industrial	-40 °C to 100 °C

See also

• Am486 family