W83194BR-KT |
RFQ for W83194BR-KT Required Field |
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| Product | Manufacturers | Pack | D/C |
| W83194BR-KT | - | SSOP48 | 2005+ |
The W83194BR-KT is a Clock Synthesizer which provides all clocks required for AMD K7.
W83194BR-KT provides 64 CPU/PCI frequencies which are selectable with smooth transitions by hardware or software.
W83194BR-KT also provides 13 SDRAM clocks controlled by the none-delay buffer_in pin.
The W83194BR-KT provides step-less frequency programming by controlling the VCO freq. and the programmable PCI clock output divisor ratio. A watchdog timer is quipped and when time out, the RESET# pin will output 4ms pulse signal.
The W83194BR-KT accepts a 14.318 MHz reference crystal as its input. Spread spectrum built in at ±0.5% or ±0.25% to reduce EMI. Programmable stopping individual clock outputs and frequency selection through I2C interface. The device meets the Pentium power-up stabilization, which requires CPU and PCI clocks be stable within 2 ms after power-up. Using dual function pin for the slots (ISA, PCI, CPU, DIMM) is not recommend.
Features |
| · Supports AMD CPU with I2C.· 3 CPU clocks (one free-running chipset clock controlled by I2C)· 13 SDRAM clocks for 3 DIMMs· 6 PCI synchronous clocks· Optional single or mixed supply: (Vddq2 =2.5V, Vddq3 =3.3V)· < 250ps skew among CPU and SDRAM clocks· < 250ps skew among PCI clocks· < 5ns propagation delay SDRAM from buffer input· Skew from CPU (earlier) to PCI clock 1 to 4ns, center 2.6ns.· Smooth frequency switch with selections from 66 MHz to 200 MHz CPU· Step-less frequency programming by controlling the VCO freq. and the clock output divisor ratio· I2C 2-Wire serial interface and I2C read back· ±0.25% or ±0.5% spread spectrum function to reduce EMI· Programmable spread spectrum in the M/N step-less mode· Programmable registers to enable/stop each output and select modes· MODE pin for power Management and RESET# out when Watch Dog Timer time out· One 48 MHz for USB & one 24 MHz for super I/O· 48-pin SSOP package |
| Models | MFG | Pack |
| W83176R-251 | ||
| W83176R-732 | 0409+ | |
| W83178S | SOP28 | |
| W83193R-0.4 | ||
| W83193R-02 | SOP48 | |
| W83193R-04 | ||
| W83193R-04A | ||
| W83194AR-73 | SSOP48 | |
| W83194AR-96 | 50 | |
| W83194AR-W | 1500 | |
| W83194AR-WE | 50 | |
| W83194BR | ||
| W83194BR-39A | ||
| W83194BR-39B | SOP48 | |
| W83194BR-63S | SSOP48 | |
| W83194BR-640 | SSOP48 | |
| W83194BR-655 | ||
| W83194BR-97 | 7000 | |
| W83194BR-B | 2500 | |
| W83194BR-C | SSOP48 | |
| W83194BR-KT | SSOP48 | |
| W83194R | ||
| W83194R-04 | ||
| W83194R-17 | SSOP48 | |
| W83194R-17A | SSOP48 | |
| W83194R-37 | SSOP48 | |
| W83194R-39 | SSOP48 | |
| W83194R-39A | SSOP48 | |
| W83194R-58 | SSOP48 | |
| W83194R-58A | SSOP48 | |
| W83194BR-C | ||
| W83194BR-B | ||
| W83194BR-97 | ||
| W83194BR-911 | ||
| W83194BR-903 | ||
| W83194BR-740 | ||
| W83194BR-730 | ||
| W83194BR-703 | ||
| W83194BR-648 | ||
| W83194BR-645 | ||
| W83194BR-640 | ||
| W83194BR-63S | ||
| W83194BR-39B | ||
| W83194BR-372 | ||
| W83194BR-323 | ||
| W83194BR-250 | ||
| W83194BR-138 | ||
| W83194BG-SD | ||
| W83194BG-911 | ||
| W83194BG-903 |
