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PDF W83194BR-97 Data sheet ( Hoja de datos )
| Número de pieza | W83194BR-97 | |
| Descripción | 200MHZ CLOCK FOR CAMINO CHIPSET | |
| Fabricantes | Winbond | |
| Logotipo |  |
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W83194BR-97
200MHZ CLOCK FOR CAMINO CHIPSET
1.0 GENERAL DESCRIPTION
The W83194BR-97 is a Clock Synthesizer for Intel Camino 820 chipset. W83194BR-97 provides all
clocks required for high-speed RISC or CISC microprocessor and also provides 64 sets of different
frequencies of CPU, PCI, 3V66, IOAPIC clocks or stepless frequecies programming by M/N value via
I2C registers. All clocks are externally selectable with smooth transitions.
The W83194BR-97 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 to reduce EMI.
The W83194BR-97 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, 24MHz, and 48 MHz provide better than 0.5V /ns
slew rate.
2.0 PRODUCT FEATURES
• 2 CPU clock outputs
• One CPU/2 output as reference input to DRCG
• 3 3V66 clock outputs
• 3 IOAPIC clock outputs
• 8 PCI synchronous clocks.
• Optional single or mixed supply:
(VddQ2 = VddQ3 = 3.3V or VddQ3=3.3V, VddQ2=2.5V)
• CPU to 3V66 offset 0 to 1.5 ns
• 3V66 to PCI offset 1.5 to 4.0 ns
• Skew form CPU to PCI clock 1 to 4 ns, center 2.6 ns
• Smooth frequency switch with selections from 66.8 to 200MHz
• Stepless programmable frequencies by I2C register9 ~ register12
• I2C 2-Wire serial interface and I2C read back
• 0.5% and 0.75% center type spread spectrum
• Programmable registers to enable/stop each output and select modes
(mode as Tri-state or Normal )
• 48 MHz pins for USB
• 24 MHz for super I/O
• 48-pin SSOP package
Publication Release Date: Dec. 1999
- 1 - Revision 0.35
1 page  
W83194BR-97
PRELIMINARY
1 0 0 0 0 0 134.00 67.00 0.50 67.00 33.50 16.75
33.50
1 0 0 0 0 1 135.00 67.50 0.50 67.50 33.75 16.88
1 0 0 0 1 0 136.00 68.00 0.50 68.00 34.00 17.00
1 0 0 0 1 1 137.00 68.50 0.50 68.50 34.25 17.13
1 0 0 1 0 0 139.00 69.50 0.50 69.50 34.75 17.38
1 0 0 1 0 1 140.00 70.00 0.50 70.00 35.00 17.50
33.75
34.00
34.25
34.75
35.00
1 0 0 1 1 0 143.00 71.50 0.50 71.50 35.75 17.88
1 0 0 1 1 1 144.00 72.00 0.50 72.00 36.00 18.00
1 0 1 0 0 0 145.00 72.50 0.50 72.50 36.25 18.13
35.75
36.00
36.25
1 0 1 0 0 1 147.00 73.50 0.50 73.50 36.75 18.38
1 0 1 0 1 0 148.00 74.00 0.50 74.00 37.00 18.50
1 0 1 0 1 1 149.00 74.50 0.50 74.50 37.25 18.63
36.75
37.00
37.25
1 0 1 1 0 0 152.00 76.00 0.50 76.00 38.00 19.00
1 0 1 1 0 1 154.00 77.00 0.50 77.00 38.50 19.25
1 0 1 1 1 0 155.00 77.50 0.50 77.50 38.75 19.38
1 0 1 1 1 1 157.00 78.50 0.50 78.50 39.25 19.63
1 1 0 0 0 0 158.00 79.00 0.50 79.00 39.50 19.75
38.00
38.50
38.75
39.25
39.50
1 1 0 0 0 1 160.00 80.00 0.50 80.00 40.00 20.00
1 1 0 0 1 0 163.00 81.50 0.50 81.50 40.75 20.38
40.00
40.75
1 1 0 0 1 1 164.00 82.00 0.50 82.00 41.00 20.50
1 1 0 1 0 0 166.00 83.00 0.50 83.00 41.50 20.75
1 1 0 1 0 1 167.00 83.50 0.50 83.50 41.75 20.88
1 1 0 1 1 0 169.00 84.50 0.50 84.50 42.25 21.13
41.00
41.50
41.75
42.25
1 1 0 1 1 1 170.00 85.00 0.50 85.00 42.50 21.25
1 1 1 0 0 0 172.00 86.00 0.50 86.00 43.00 21.50
1 1 1 0 0 1 173.00 86.50 0.50 86.50 43.25 21.63
1 1 1 0 1 0 175.00 87.50 0.50 87.50 43.75 21.88
42.50
43.00
43.25
43.75
1 1 1 0 1 1 181.00 90.50 0.50 90.50 45.25 22.63
1 1 1 1 0 0 183.00 91.50 0.50 91.50 45.75 22.88
1 1 1 1 0 1 185.00 92.50 0.50 92.50 46.25 23.13
45.25
45.75
46.25
1 1 1 1 1 0 190.00 95.00 0.50 95.00 47.50 23.75
1 1 1 1 1 1 200.00 100.00 0.50 100.00 50.00 25.00
47.50
50.00
Publication Release Date: Dec. 1999
- 5 - Revision 0.35
5 Page 
8.0 PACKAGE DRAWING AND DIMENSIONS
W83194BR-97
PRELIMINARY
Headquarters
No. 4, Creation Rd. III
Science-Based Industrial Park
Hsinchu, Taiwan
TEL: 886-35-770066
FAX: 886-35-789467
www: http://www.winbond.com.tw/
Winbond Electronics (H.K.) Ltd.
Rm. 803, World Trade Square, Tower II
123 Hoi Bun Rd., Kwun Tong
Kowloon, Hong Kong
TEL: 852-27516023-7
FAX: 852-27552064
Winbond Electronics
(North America) Corp.
2730 Orchard Parkway
San Jose, CA 95134 U.S.A.
TEL: 1-408-9436666
FAX: 1-408-9436668
Taipei Office
11F, No. 115, Sec. 3, Min-Sheng East Rd.
Taipei, Taiwan
TEL: 886-2-7190505
FAX: 886-2-7197502
TLX: 16485 WINTPE
Please note that all data and specifications are subject to change without notice. All the trade
marks of products and companies mentioned in this data sheet belong to their respective
owners.
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 sale.
- 11 -
Publication Release Date: Dec. 1999
Revision 0.35
11 Page | ||
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| PDF Descargar | [ Datasheet W83194BR-97.PDF ] | |
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