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ARM7 µarch
General Info
Arch Type	CPU
Designer	ARM Holdings
Manufacturer	VLSI Technology
Introduction	1993
Instructions
ISA	ARMv3
Succession
ARM6 ARM8

ARM7 is the successor to the ARM6, an 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. The ARM7 was the first major microarchitecture to be used in multimedia mobile applications and one of the most successful ARM microarchitectures ever designed.

Architecture

Key changes from ARM6

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Block Diagram

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Memory Hierarchy

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Licensees

In 2013 Arm reported 172 licensees. The following were named.

• Accent
• Altera Corporation
• AMI Semiconductor
• Analog Devices Inc.
• Atmel Corporation
• Avalink Incorporated
• Beken Corporation
• Broadcom Corporation
• GLOBALFOUNDRIES
• Chengdu Javee Microelectronics Co.
• Cirrus Logic
• Conexant Systems Inc.
• Dialog Semiconductor
• DSPG
• eSilicon Corporation
• Freescale Semiconductor
• Fujitsu
• Gainspan Corporation
• Global Unichip Corporation
• Hong Kong Science and Technology Parks
• Indilinx
• Infineon Technologies AG
• Intel Corporation
• Intellon Corporation
• Intrinsix Corporation
• Kawasaki Microelectronics
• LSI Logic
• Mamurian Design Inc
• Mediatek
• Micronas
• NEC Electronics
• Neo Magic Corporation
• Nuvoton Technology Corporation
• NVIDIA
• NXP
• OKI
• Panasonic
• Pixim
• PLX Technology Inc
• Qualcomm
• RDA International Inc
• Rohm
• Samsung Electronics
• Sanyo
• Seiko Epson
• Shanghai Fudan
• Sharp
• Shenzhen State Microelectronics (SMIT)
• SiRF Technology
• Skyworks
• Socle Technology Corp
• Sony
• Spreadtrum Communications Inc.
• STMicroelectronics
• Telegent Systems Inc
• Texas Instruments
• Toshiba
• U-Blox AG
• Verisilicon
• Via Telecom/Via Technology
• Xi'an Huaxun
• Yamaha Corporation
• Zarlink Semiconductor
• Zoran Corporation

Die

ARM7TDMI

• 0.35 μm process
• 74,209 transistors
• 2.2 mm² die size
• 1.5 mW/MHz @ 3.0V
• 66 MHz max frequency

Bibliography

• Segars, Simon. "The ARM9 Family-High Performance Microprocessors for Embedded Applications." Proceedings of the International Conference on Computer Design. 1998.