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ARM9 µarch
General Info
Arch Type	CPU
Designer	ARM Holdings
Manufacturer	VLSI Technology, TSMC
Introduction	October 16, 1997
Succession
ARM8 ARM10

ARM9 is the successor to the ARM8, a low-power performance ARM microarchitecture designed by ARM Holdings for the mobile market. This microarchitecture is designed as an IP core and is sold to other semiconductor companies to be implemented in their own chips.

Architecture

Key changes from ARM8

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Block Diagram

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Memory Hierarchy

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Licensees

In 2013 Arm reported 271 licensees. The following were named.

• Accent
• Alcatel
• Alchip
• All Winner Technology (Holding) Ltd
• Altera
• Analog Devices Inc.
• ARCA
• Atheros Communications
• Atmel Corporation
• Austriamicrosystems
• Avago Technologies
• Avalink Incorporated
• Beken Corporation
• Broadcom Corporation
• Cambridge Silicon Radio
• Capital Semiconductor Ltd
• Chongqing Chongyou IT
• Cirrus Logic
• Conexant Systems Inc.
• Datang Microelectronics Technology
• eSilicon Corporation
• Faraday TechFocus Enhancements
• Freescale Semiconductor
• Fujitsu
• GCT Semiconductor
• Global Unichip Corporation
• Huawei Technologies
• ICP
• Infineon Technologies AG
• Ironkey Incorporated
• Kawasaki Microelectronics
• Key ASIC
• Leadcore Technology Co Ltd
• LSI Logic
• Marvell Semiconductor
• Mediatek Inc
• Micrel
• Mindspeed Technologies Inc.
• Moschip Semiconductor
• Mtekvision
• NationZ Technologies Inc
• NEC Electronics
• Neo Magic Corporation
• NXP
• Nuvoton Technology Corporation
• NVidia Corporation
• OKI
• Panasonic
• Parrot
• Pixim
• PulseLink
• Qualcomm
• Quanta Computer Inc
• Renesas Technology
• RF Micro Devices
• Rohm
• Samsung Electronics
• Sandisk
• Sanyo Electric Co Ltd
• Shanghai Jade Technologies
• Sharp Corporation
• Sierra Wireless SA
• Skyworks Solutions Inc.
• Socle Technology Corp
• Sony
• STMicroelectronics
• Standard Microsystems
• Telechips
• Texas Instruments
• Toshiba
• TSMC
• Verisilicon
• Wisair
• Zoran Corporation

Die

ARM9TDMI

• 0.35 μm process
• 112,000 transistors
• 4.15 mm² die size
• 1.8 mW/MHz @ 3.0V

ARM940T

• 0.35 μm process
• 800,000 transistors
• 13.0 mm² die size
• 2 x 4 KiB caches
• 400 mW @ 120 MHz core / 16 MHz bus

Bibliography

• October 16, 1997. Press Release "ARM announces new higher performance, low power ARM9 processor architecture".
• Segars, Simon. "The ARM9 Family-High Performance Microprocessors for Embedded Applications." Proceedings of the International Conference on Computer Design. 1998.