cy28354-400 Cypress Semiconductor Corporation., cy28354-400 Datasheet
cy28354-400
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cy28354-400 Summary of contents
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... Buffer for 4-DDR DIMMS for VIA Chipsets Support Functional Description The CY28354-400 is a 2.5V buffer designed to distribute high-speed clocks in PC applications. The part has 24 outputs to support four unbuffered DDR DIMMS. The CY28354-400 can be used in conjunction with CY28326 similar clock synthe- sizer for the PTT880 and KTT880 chipsets ...
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... The offset of the indexed byte is encoded in the command code, as described in Table 1. The Block Write and Block Read protocol is outlined in Table 2.The slave receiver address is D2/DC depending on the state of the ADDRSEL pin. Description CY28354-400 Description Page [+] Feedback ...
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... The Serial bits will be read by the clock driver in the following order. Byte 0 – Bits Byte 1 – Bits Byte N – Bits Document #: 38-07615 Rev. *B CY28354-400 Block Read Protocol Bit Description 1 Start 2:8 Slave address – ...
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... FBOUTA Control Enable Disable FBOUTB Control Enable Disable DDRBT5, DDRBC5 DDRBT4, DDRBC4 DDRBT3, DDRBC3 DDRBT2, DDRBC2 Pin # 7, DDRBT1, 8 DDRBC1 5, DDRBT0, 6 DDRBC0 36, DDRAT5, 35 DDRAC5 38, DDRAT4, 37 DDRAC4 21, DDRAT3, 22 DDRAC3 19, DDRAT2, 20 DDRAC2 13, DDRAT1, 14 DDRAC1 11, DDRAT0, 12 DDRAC0 CY28354-400 Description Description Page [+] Feedback ...
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... See Test Circuity. See Figure 1 V Test Conditions Measured differentially at V CROSS Measured single ended at 20 Measured single ended at 80 All outputs equally loaded. See Figure 1. At output load of 15 pFn CY28354-400 Min. Max. Unit –0.5 4.6 V –0.3 V +0.3 ...
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... Figure 1 shows the differential clock directly terminated by a 120Ω resistor Device Out Under Test Out Figure 1. Differential Signal Using Direct Termination Resistor Document #: 38-07615 Rev 60Ω ) 60Ω CY28354-400 VTR R =120Ω T Receiver VCP Page [+] Feedback ...
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... 0.005 µF Package Type CY28354-400 Operating Range Commercial, 0° °C Commercial, 0° °C Page [+] Feedback ...
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... Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. Cypress products are not warranted nor intended to be used for medical, life-support, life-saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. CY28354-400 51-85061-*C ...
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... Document History Page Document Title:CY28354-400 210-MHz 24-Output Buffer for 4-DDR DIMMS for VIA Chipsets Support Document Number: 38-07615 Rev. ECN No. Issue Date ** 131434 12/09/03 *A 222683 See ECN *B 237829 See ECN Document #: 38-07615 Rev. *B Orig. of Change Description of Change RGL New Data Sheet RGL/TUJ Removed the “ ...