W83194BG-703

Series: -
Output: Clock
Number of Circuits: 1
Operating Temperature: 0°C ~ 70°C
Mounting Type: Surface Mount
Differential - Input:Output: No/Yes
Packaging: Tube
Input: Crystal
Supplier Device Package: 48-SSOP
Voltage - Supply: 2.375 V ~ 3.465 V
PLL: No
Type: Clock/Frequency Synthesizer
Main Purpose: Memory, DDR
Ratio - Input:Output: 1:22
Manufacturer: Nuvoton Technology Corporation of America
Package / Case: 48-LSSOP (0.295", 7.50mm Width)
Frequency - Max: 218MHz


Features:

• 1 3.3V open drain Differential pairs clock outputs for CPU
• 1 3.3V open drain singled-ended clock output for chipset host bus.
• 1 pair 3.3V current mode differential SRC clock.
• 2 3.3V ZCLK clock outputs
• 2 AGP clock outputs
• 8 PCI synchronous clocks
• 2 2.5V IOAPIC clock outputs
• 1 24_48Mhz clock output for super I/O.
• 1 12_48 MHz clock output for USB.
• 3 14.318MHz REF clock outputs.
• ZCLK/AGP/PCI clock out supports synchronous and asynchronous mode
• Smooth frequency switch with selections from 100 to 218MHz
• Step-less frequency programming
• I²C 2-Wire serial interface and support byte read/write and block read/write.
• -0.5% and +/- 0.25% center type spread spectrum
• Programmable S.S.T. scale to reduce EMI
• Programmable registers to enable/stop each output and select modes
• Programmable clock outputs Skew control
• 48-pin SSOP package


Application

These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales.

Pinout




Specifications

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 VDD).

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

Description

The W83194BR-703 is a Clock Synthesizer for SIS 741 chipset with 964 South Bridge. W83194BR- 703 provides all clocks required for high-speed microprocessor and provides step-less frequency programming and 32 different frequencies of CPU, PCI, and AGP clocks setting, support two ZCLK clock and one pair current mode differential SRC clock outputs; all clocks are externally selectable with smooth transitions.

The W83194BR-703 provides I2C serial bus interface to program the registers to enable or disable each clock outputs and provides -0.5% and +/-0.25% center type spread spectrum or programmable S.S.T. scale to reduce EMI.

The W83194BR-703 also has watchdog timer to support auto-reset when systems hanging caused by improper frequency setting.

The W83194BR-703 accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.

Parameters:

Technical/Catalog Information	W83194BG-703
Vendor	Nuvoton Technology Corporation of America
Category	Integrated Circuits (ICs)
Type	Clock Generator
Voltage - Supply	-
Number of Outputs	19
Input	-
Output	-
Frequency-Max	48MHz
Package / Case	48-SSOP
Packaging	Tube
Operating Temperature	0°C ~ 70°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	W83194BG 703 W83194BG703