5-8 Hardware Specifications Rev.A
Confidential
Peripheral CPU and Memory Circuits
5-4 Block diagram of the peripheral CPU and memory circuits

CPU (Celeron-PPGA)

An Intel Celeron processor is used. In SR-600, 370 socket type is in use.
The main specifications of the CPU are explained below. Refer to the Intel Celeron Processor
Data sheet for information on items not covered here.
Operating frequencies: 366MHz
Base clock: 66MHz (Input from the clock generator)
L2 cache: 128KB built in
Core voltage: 2.00V The core voltage is automatically set by the CPU.
(Setting a jumper is not necessary)

Memory (168pin DIMM)

Two 168-pin DIMM sockets are available, and a maximum of 256MB memory can be mounted.
The DRAM only supports the 3.3V SDRAM (synchronous DRAM.) The DIMM is used
singularly. It is possible to use two DIMMs with different capacities. It is necessary to conform
to the Intel PC SDRAM Unbuffered DIMM Specifications for the basic specifications. The
specifications are explained below.
SDRAM specifications: Conform to the Intel PC SDRAM specifications.
CPU
Celeron
82443BX
DIMM
DIMM
Clock
Buffer
Host Bus
Memory Bus
PCI Bus
Clock
Generator
CPU Clock
PCI Clock
Memory Clock
14.318MHz