FIN224AC_08 FAIRCHILD [Fairchild Semiconductor], FIN224AC_08 Datasheet - Page 3

• Manufacturer Part Number: FIN224AC_08
• Description: 22-Bit Bi-Directional Serializer/Deserializer
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

© 2006 Fairchild Semiconductor Corporation
FIN224AC Rev.1.1.5
Terminal Description
Note
1. The DSO/DSI serial port pins have been arranged such that if one device is rotated 180 degrees with respect to the
DSO+ / DSI-
DSO- / DSI+
Terminal
DP[21:22]
DP[23:24]
other device, the serial connections properly align without the need for any traces or cable signals to cross. Other
layout orientation may require that traces or cables cross.
STROBE
DP[1:20]
CKREF
CKSO+
CKSO-
Name
CKSI+
:
CKSI-
DIRO
V
V
V
GND
CKP
DIRI
S1
S2
DDP
DDS
DDA
DIFF-OUT
I/O Type
DIFF-I/O
DIFF-IN
Supply
Supply
Supply
Supply
OUT
OUT
I/O
IN
IN
IN
IN
IN
O
I
Number of
Terminals
20
2
2
1
1
1
2
2
2
1
1
1
1
1
1
1
2
LVCMOS parallel I/O, Direction controlled by DIRI pin
LVCMOS parallel unidirectional inputs
LVCMOS unidirectional parallel outputs
LVCMOS clock input and PLL reference
LVCMOS strobe signal for latching data into the serializer
LVCMOS word clock output
CTL differential serial I/O data signals
CTL differential deserializer input bit clock
CTL differential serializer output bit clock
LVCMOS mode selection terminals used to select frequency range for
the reflect, CKREF
LVCMOS control input used to control direction of data flow:
LVCMOS control output inversion of DIRI
Power supply for parallel I/O and translation circuitry
Power supply for core and serial I/O
Power supply for analog PLL circuitry
For ground signals (2 for µBGA, 1 for MLP)
DSO: Refers to output signal pair
DSI: Refers to input signal pair
DSO(I)+: Positive signal of DSO(I) pair
DSO(I)-: Negative signal of DSO(I) pair
CKSI: Refers to signal pair
CKSI+: Positive signal of CKSI pair
CKSI-: Negative signal of CKSI pair
CKSO: Refers to signal pair
CKSO+: Positive signal of CKSO pair
CKSO-: Negative signal of CKSO pair
DIRI = “1” Serializer
DIRI = “0” Deserializer
3
Description of Signals
(1.)
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