CY29947AC Cypress Semiconductor Corp, CY29947AC Datasheet - Page 2

• Manufacturer Part Number: CY29947AC
• Manufacturer: Cypress Semiconductor Corp
• Type: Clock Driverr

Specifications of CY29947AC

• Number Of Clock Inputs: 2
• Mode Of Operation: Single-Ended
• Output Frequency: 200MHz
• Output Logic Level: LVCMOS/LVTTL
• Operating Supply Voltage (min): 2.375V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.63V
• Package Type: TQFP
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Signal Type: LVCMOS/LVTTL
• Mounting: Surface Mount
• Pin Count: 32
• Quiescent Current: 7mA
• Lead Free Status / RoHS Status: Not Compliant

Pin Description
Note:
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.
Document #: 38-07287 Rev. *C
1.
11, 13, 15, 19,
21, 23, 26, 28,
10, 14, 18, 22,
1, 8, 9, 12, 16,
17, 20, 24, 25,
PD = internal pull-down, PU = internal pull-up.
27, 31
29, 32
Pin
30
3
4
2
5
6
7
SYNC_OE
TCLK
Q
TCLK_SEL
SYNC_OE
[1]
TCLK0
TCLK1
Name
Q(8:0)
VDDC
VDD
VSS
TS#
VDDC
PWR
Figure 1. SYNC_OE Timing Diagram
I, PU
I, PU
I, PU
I, PU
I, PU
I/O
O
Test Clock Input
Test Clock Input
Test Clock Select Input. When LOW, TCLK0 is selected. When assert-
ed HIGH, TCLK1 is selected.
Clock Outputs
Output Enable Input. When asserted HIGH, the outputs are enabled
and when set LOW the outputs are disabled in a LOW state.
Three-state Control Input. When asserted LOW, the output buffers are
three-stated. When set HIGH, the output buffers are enabled.
3.3V or 2.5V Power Supply for Output Clock Buffers
3.3V or 2.5V Power Supply
Common Ground
Description
CY29947
Page 2 of 7
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