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W83194BG-619, W83194BG-SD, W83194BR

Table of contents:
Info of W83194BG-619
Info of W83194BG-SD
Info of W83194BR

W83194BG-619, W83194BG-SD, W83194BR Selling Leads, Datasheet

MFG:SSOP-48 Package Cooled:Winbond D/C:05+

W83194BG-619, W83194BG-SD, W83194BR Picture

W83194BG-619, W83194BG-SD, W83194BR Datasheet download

Five Points

Part Number: W83194BG-619

MFG: SSOP-48

Package Cooled: Winbond

D/C: 05+

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W83194BG-SD General Description

The W83194BR-SD is a Clock Synthesizer for Intel P4 Springdale series chipset. W83194BR-SD provides all clocks required for high-speed microprocessor and provides step-less frequency programming and 32 different frequencies of CPU, SRC, PCI, and 3V66 clocks setting. All clocks are externally selectable with smooth transitions.

The W83194BR-SD provides I²C serial bus interface to program the registers to enable or disable each clock outputs and provides +/-0.25%, +/-0.5% center type and 0.5%, -1.0% down type spread spectrum or programmable S.S.T. scale to reduce EMI.

The W83194BR-SD also has watchdog timer and reset output pin to support auto-reset when systems hanging caused by improper frequency setting.

The W83194BR-SD accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.

W83194BG-SD Maximum Ratings

Stresses greater than those listed in this table may cause permanent damage to the device. Precautions should be taken to avoid application of any voltage higher than the maximum rated voltages to this circuit. Subjection to maximum conditions for extended periods may affect reliability. Unused inputs must always be tied to an appropriate logic voltage level (Ground or V_DD).

PARAMETER	RATING
Absolute 3.3V Core Supply Voltage	-0.5V to +4.6V
Absolute 3.3V I/O Supple Voltage	-0.5 V to +4.6 V
Operating 3.3V Core Supply Voltage	3.135V to 3.465V
Operating 3.3V I/O Supple Voltage	3.135V to 3.465V
Storage Temperature	-65 to +150
Ambient Temperature	-55 to +125
Operating Temperature	0 to +70
Input ESD Protection (Human body model)	2000V

W83194BG-SD Features

• 2 pairs current mode differential clock for CPU and Chipset
• 1 pairs current mode differential clock for SRC
• 3 3V66 clock outputs
• 1 3V66/VCH clock output default 66MHz
• 9 PCI synchronous clocks, 3 free running
• 2 48MHz clock outputs for USB and DOT
• 1 24_48MHz for I/O chip, default 48MHz
• 3 REF 14.318MHz clock outputs
• SRC/AGP/PCI clock out supports synchronous and asynchronous mode
• 3V66 leads PCICLK from 1.5ns to 3.5ns
• I²C 2-Wire serial interface supports block and byte mode read/write
• Step-less frequency programming
• Smooth frequency switch with selections from 100 to 400MHz
• Programmable clock outputs Slew rate control and Skew control
• +/- 0.25% center type spread spectrum in table mode
• Programmable S.S.T. scale to reduce EMI
• Programmable registers to enable/stop each output and select modes
• Watch Dog Timer and RESET# output pins
• 48-pin SSOP package

W83194BG-SD Connection Diagram

#: Active low
*: Internal pull up resistor 120K to VDD
&: Internal Pull-down resistor 120K to GND

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