CY23S05
CY23S09
Pin Description for CY23S09
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
REF
[2]
CLKA1
[3]
CLKA2
[3]
V
DD
GND
CLKB1
[3]
CLKB2
[3]
S2
[4]
S1
[4]
CLKB3
[3]
CLKB4
[3]
GND
V
DD
CLKA3
[3]
CLKA4
[3]
CLKOUT
[3]
Signal
Description
Input reference frequency, 5V-tolerant input
Buffered clock output, bank A
Buffered clock output, bank A
3.3V supply
Ground
Buffered clock output, bank B
Buffered clock output, bank B
Select input, bit 2
Select input, bit 1
Buffered clock output, bank B
Buffered clock output, bank B
Ground
3.3V supply
Buffered clock output, bank A
Buffered clock output, bank A
Buffered output, internal feedback on this pin
Pin Description for CY23S05
Pin
1
2
3
4
5
6
7
8
REF
[2]
CLK2
[3]
CLK1
[3]
GND
CLK3
[3]
V
DD
CLK4
[3]
CLKOUT
[3]
Signal
Description
Input reference frequency, 5V-tolerant input
Buffered clock output
Buffered clock output
Ground
Buffered clock output
3.3V supply
Buffered clock output
Buffered clock output, internal feedback on this pin
Notes:
2. Weak pull-down.
3. Weak pull-down on all outputs.
4. Weak pull-up on these inputs.
Document #: 38-07296 Rev. *B
Page 3 of 9
CYPRESS [ CYPRESS SEMICONDUCTOR ]
