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Processor
The processor in the iPhone is a 620MHz ARM chip, specifically ARM1176JZF chip with TrustZone. It is a three stacked die package containing an S5L8900 and two 512 Mbit SRAM dice. Here's some details
Can vary in clock speed up to 700MHz or more, depending on implementation
ARM Intelligent Energy Manager (claimed to reduce power consumption 25-50% in portables)
16K / 16K cache
Features vector floating point coprocessor ("for embedded 3D-graphics")
ARM Jazelle enabled for embedded Java execution (hmm...)
SIMD, high perf integer CPU (8-stage pipeline, 675 Dhrystone, 2.1 MIPS)
0.45 mW/MHz power draw (with cache)
Chips
-Broadcom BCM5973A.
Believed to provide the I/O controller used for the video interface to the touch screen.
-Philips designs the third part.
Starts "with something like LPC2221."
-Infineon's PMB8876 S-Gold 2.
Multimedia engine with EDGE functionality, provides the iPhone's baseband.
-Second Infineon part appears to be the GSM RF transceiver.
-National Semiconductor 24-bit RGB display interface serializer.
-Texas Instruments power-management device.
-Multichip package with STMicroelectronics and Peregrine Semiconductor die markings.
Sources
Engadget | EETimes
