W83194BR-B |
RFQ for W83194BR-B Required Field |
 |
| Product | Manufacturers | Pack | D/C |
| W83194BR-B | - | 2500 | - |
The W83194BR-B is a Clock Synthesizer for Intel Brook dale 845 chipset. W83194BR-B provides all clocks required for high-speed microprocessor and provides step-less frequency programming and 32 different frequencies of CPU, PCI, and 3V66 clocks setting. All clocks are externally selectable with smooth transitions.
T
he W83194BR-B 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-B also has watch dog timer and reset output pin to support auto-reset when systems hanging caused by improper frequency setting.
The W83194BR-B accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.
High drive PCI CLOCK outputs typically provide greater than 1 V /ns slew rate into 30 pF loads. CPU CLOCK outputs typically provide better than 1 V /ns slew rate into 20 pF loads as maintaining 50± 5% duty cycle. The fixed frequency outputs as REF and 48 MHz provide better than 0.5V /ns slew rate.
Features |
| • 3 pairs of CPU clock outputs• 4 3V66 clock outputs• 9 PCI synchronous clocks• 2 48 MHz clock outputs for USB and DOT• Skew form CPU to PCI clock 1 to 4 ns, center 2.6 ns• Smooth frequency switch with selections from 66.6 to 200MHz• Step-less frequency programming• I2C 2-Wire serial interface and I2C read back• -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• Watch Dog Timer and RESET# output pins• 48-pin SSOP package |
| Parameter |
Rating |
| Absolute 3.3V Core Supply Voltage |
- 0.5 V to + 4.6 V |
| Absolute 3.3V I/O Supple Voltage |
- 0.5 V to + 4.6 V |
| Operating 3.3V Core Supply Voltage |
3.135V to 3.465 V |
| Operating 3.3V I/O Supple Voltage |
3.135V to 3.465 V |
| Storage Temperature |
- 65°C to + 150°C |
| Ambient Temperature |
- 55°C to + 125°C |
| Operating Temperature |
0°C to + 70°C |
| Input ESD protection (Human body model) |
2000V |
| 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-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 | ||
| W83194BG-703 | ||
| W83194AR-We |
