W215B - Notebook PC system Frequency Generator

Product Overview

Cypress Semiconductor

Datasheet Details

Part number	W215B
Manufacturer	Cypress Semiconductor
File Size	221.62 KB
Description	Notebook PC system Frequency Generator
Datasheet	W215B Datasheet
Additional preview pages of the W215B datasheet.

Product details

Description

W215B CPU Outputs 0 through 3: These four CPU outputs are controlled by the CPU_STOP# control pin.Output voltage swing is controlled by voltage applied to VDDQ2. PCI Bus Outputs 0 through 5: These six PCI outputs are controlled by the PCI_STOP# control pin.Output voltage swing is controlled by voltage applied to VDDQ3. Free Running PCI Output: Unlike PCI0:5 outputs, this output is not controlled by the PCI_STOP# control pin.Output voltage swing is controlled by voltage applied to VDDQ3. SDR

Features

Generates system clocks for CPU, IOAPIC, SDRAM, PCI, USB plus 14.318 MHz (REF0:1).
MODE input pin selects optional power management input control pins (reconfigures pins 26 and 27).
Two fixed outputs separately selectable as 24-MHz or 48-MHz (default = 48-MHz).
VDDQ3 = 3.3V±5%, VDDQ2 = 3.3V±5%.
Uses external 14.318-MHz crystal.
Available in 48-pin TSSOP (6.1-mm).
10Ω CPU output impedance Table 1. Pin Selectable Frequency 95/100_SEL.

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Published: Jul 1, 2007 |