CY29947 Cypress Semiconductor, CY29947 Datasheet
CY29947
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CY29947 Summary of contents
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... Document #: 38-07287 Rev. *C 2.5V or 3.3V, 200-MHz, 1:9 Clock Distribution Buffer Description The CY29947 is a low-voltage 200-MHz clock distribution buff- er with the capability to select one of two LVCMOS/LVTTL compatible clock inputs. The two clock sources can be used to provide for a test clock as well as the primary system clock. ...
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... PD = internal pull-down internal pull-up. Output Enable/Disable The CY29947 features a control input to enable or disable the outputs. This data is latched on the falling edge of the input clock. When SYNC_OE is asserted LOW, the outputs are dis- abled in a LOW state. When SYNC_OE is set HIGH, the out- puts are enabled as shown in Figure 1 ...
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... Outputs @ 160 MHz 3. 2.5V DD /2) transmission lines. DD and V should be constrained to the in out < out Min. Typ. Max. V 0 –100 10 0.4 2.5 1 120 200 85 140 CY29947 Unit V V µA µ Page ...
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... Set-up and hold times are relative to the falling edge of the input clock Document #: 38-07287 Rev. *C Conditions 2.5V DD Measured [6, 8] SYNC_OE to TCLK TCLK to SYNC_OE [8] 0.8V to 2.0V 3.3V DD 0.6V to 1.8V 2.5V DD CY29947 Min. Typ. Max. 200 170 4.75 9.25 6.50 10. 150 250 2.0 0.0 1.0 0.20 1.0 0.20 1.3 Page Unit MHz ns % ...
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... Pulse Generator ohm Figure 2. LVCMOS_CLK CY29947 Test Reference for V Figure 3. LVCMOS Propagation Delay (TPD) Test Reference Document #: 38-07287 Rev. *C CY29947 DUT ohm ohm T VTT LVCMOS_CLK 100% Figure 4. Output Duty Cycle (FoutDC) t SK(0) Figure 5. Output-to-Output Skew tsk(0). ...
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... The inclusion of Cypress 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. Package Type CY29947 Production Flow Industrial, –40°C to +85°C Industrial, – ...
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... Revision History Document Title: CY29947 2.5V or 3.3V, 200-MHz, 1:9 Clock Distribution Buffer Document Number: 38-07287 Issue REV. ECN NO. Date ** 111098 02/07/02 *A 116781 08/14/02 *B 118462 09/09/02 *C 122879 12/22/02 Document #: 38-07287 Rev. *C Orig. of Change BRK New data sheet HWT Added Commercial Temperature Range in the ordering information HWT Corrected the Package Drawing and Dimension in page 6 from 32 LQFP to ...