W147G, W148KR, W149 Selling Leads, Datasheet
MFG:CYPRESS Package Cooled:N/A D/C:09+
W147G, W148KR, W149
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Info of W147G
Info of W148KR
Info of W149
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About W147G
PDF/DataSheet Download
Datasheet: W147G
File Size: 144118 KB
Manufacturer: CYPRESS [Cypress Semiconductor]
Download : Click here to Download
About W144
PDF/DataSheet Download
Datasheet: W144
File Size: 159638 KB
Manufacturer: CYPRESS [Cypress Semiconductor]
Download : Click here to Download
About W149
PDF/DataSheet Download
Datasheet: W149
File Size: 161769 KB
Manufacturer: CYPRESS [Cypress Semiconductor]
Download : Click here to Download
W147G Maximum Ratings
| Parameter | Description | Min | Max | Unit |
| VDD3 | 3.3V Core Supply Voltage | -0.5 | 4.6 | V |
| VDDQ2 | 2.5V I/O Supply Voltage | -0.5 | 3.6 | V |
| VDDQ3 | 3.3V Supply Voltage | -0.5 | 4.6 | V |
| TS | Storage Temperature | -65 | 150 | °C |
| Vih3 | 3.3V Input High Voltage | -0.5 | 4.6 | V |
| Vil3 | 3.3V Input Low Voltage | -0.5 | V | |
| ESD prot. | Input ESD Protection | 2000 | V |
W147G Features
• Maximized EMI suppression using Cypress's Spread Spectrum Technology
• Low jitter and tightly controlled clock skew
• Highly integrated device providing clocks required for CPU, core logic, and SDRAM
• Three copies of CPU clock at 66/100 MHz
• Nine copies of 100-MHz SDRAM clocks
• Eight copies of PCI clock
• Two copies of synchronous APIC clock
• Two copies of 48-MHz clock (non-spread spectrum) optimized for USB reference input and video dot clock
• Two copies of 66-MHz fixed clock
• One copy of 14.31818-MHz reference clock
• Power-down control
• I2C interface for turning off unused clocks
• Low jitter and tightly controlled clock skew
• Highly integrated device providing clocks required for CPU, core logic, and SDRAM
• Three copies of CPU clock at 66/100 MHz
• Nine copies of 100-MHz SDRAM clocks
• Eight copies of PCI clock
• Two copies of synchronous APIC clock
• Two copies of 48-MHz clock (non-spread spectrum) optimized for USB reference input and video dot clock
• Two copies of 66-MHz fixed clock
• One copy of 14.31818-MHz reference clock
• Power-down control
• I2C interface for turning off unused clocks
W147G Connection Diagram
W149 Maximum Ratings
| Parameter | Description | Rating | Unit |
| VDD, VIN | Voltage on any pin with respect to GND | 0.5 to +7.0 | V |
| TSTG | Storage Temperature | 65 to +150 | °C |
| TA | Operating Temperature | 0 to +70 | °C |
| TB | Ambient Temperature under Bias | 55 to +125 | °C |
| ESDPROT | Input ESD Protection | 2 (min.) | KV |
W149 Features
• Maximized EMI suppression using Cypress's Spread Spectrum Technology
• Single chip system frequency synthesizer for Intel® 440BX AGPset
• Two copies of CPU output
• Six copies of PCI output
• One 48-MHz output for USB
• One 24-MHz output for SIO
• Two buffered reference outputs
• One IOAPIC output
• Thirteen SDRAM outputs provide support for 3 DIMMs
• Spread Spectrum feature always enabled
• I2C™ interface for programming
• Power management control inputs
• Smooth CPU frequency switching from 66.8124 MHz
• Single chip system frequency synthesizer for Intel® 440BX AGPset
• Two copies of CPU output
• Six copies of PCI output
• One 48-MHz output for USB
• One 24-MHz output for SIO
• Two buffered reference outputs
• One IOAPIC output
• Thirteen SDRAM outputs provide support for 3 DIMMs
• Spread Spectrum feature always enabled
• I2C™ interface for programming
• Power management control inputs
• Smooth CPU frequency switching from 66.8124 MHz
W149 Connection Diagram
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