CY29946
CY29946 Description
2.5V or 3.3V, 200-MHz, 1:10 Clock Distribution Buffer
CY29946 Vendor
Cypress
CY29946 Categories
Clock Fanout Buffers
CY29946 Features
2.5V or 3.3V operation
200-MHz clock support
Two LVCMOS-/LVTTL-compatible inputs
Ten clock outputs: drive up to 20 clock lines
1× or 1/2× configurable outputs
Output three-state control
250-ps max. output-to-output skew
Pin-compatible with MPC946, MPC9446
Available in commercial and industrial temperature range
32-pin TQFP package
CY29946 Description
The CY29946 is a low-voltage 200-MHz clock distribution buffer with the capability to select one of two LVCMOS/LVTTL compatible input clocks. These clock sources can be used to provide for test clocks as well as the primary system clocks. All other control inputs are LVCMOS/LVTTL compatible. The 10 outputs are LVCMOS or LVTTL compatible and can drive 50. series or parallel terminated transmission lines. For series terminated transmission lines, each output can drive one or two traces giving the device an effective fanout of 1:20. The CY29946 is capable of generating 1× and 1/2× signals from a 1× source. These signals are generated and retimed internally to ensure minimal skew between the 1× and 1/2× signals. SEL(A:C) inputs allow flexibility in selecting the ratio of 1× to1/2× outputs.
CY29946 Datasheet and Application Notes
CY29946 Datasheet
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