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AN-5058
APPLICATION NOTE
2005 Fairchild Semiconductor Corporation
Rev. 1.0.1 3/22/07
www.fairchildsemi.com
2
What are the differences among the μSerDes devices
Each device in the Fairchild μSerDes family has been designed for specific architectures as shown in Table 1.
Table 1. μSerDes Family Comparisons
FIN12AC
Serializer /
Deserializer
12
40MHz
FIN24AC
Serializer /
Deserializer
22
20MHz
FIN24C
Serializer /
Deserializer
24
20MHz
FIN212AC
Serializer /
Deserializer
12
40MHz
48MHz & 2.5x2.5
package
FIN224AC
Serializer /
Deserializer
22
26MHz
FIN324C
Serializer /
Deserializer
24
15MHz
Higher frequency
version
Function
Number of Bits
Max Frequency
Factory Options
(***Contact Factory)
Dynamic Current
(Serializer)
VDDA/S
VDDP
Read / Write
26MHz
8.5mA @ 5MHz
9.5mA @ 5MHz
11mA @ 10MHz
9.5mA @ 5MHz
9mA @ 5MHz
4mA @ 5.44MHz
2.5 to 3.3V
1.65 to 3.6V
Write
2.5 to 2.9V
1.65 to 3.6V
Write
2.5 to 2.9V
1.65 to 3.6V
Write
2.5 to 3.6V
1.65 to 3.6V
Write
Camera
Small LCD
2.5 to 3.3V
1.65 to 3.6V
Write
2.5 to 3.0V
1.6 to V
DDA/S
Read / Write
Ideal Application
Camera
Small LCD
Small LCD
Small LCD
Small LCD
Recommended Interface
RGB
μController
RGB
μController / RGB
μController
μController / RGB
/ SPI
Selectable LVCMOS Edge
Rates
Selectable LVCMOS Pulse
Width
Output state
External timing required
No
No
No
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
Tri-state
Yes
Tri-state
Yes
Tri-state
Yes
Tri-state
Yes
Tri-state
Yes
Known-state
No
Additional Features
Multiple frequency
range
Multiple frequency
range
Multiple frequency
range; CTL
Standard or
High;PLL divide by
2 or 3
14
BGA, MLP
0-Power Down; 1-
CKREF 20Mhz to
40MHz; 2-CKREF
5MHz to 14MHz;
3-CKREF 8MHz to
28MHz
Multiple frequency
range
RT180
ESD in kV
Package
15
8
8
15
15
BGA, MLP
0-Power Down; 1-
CKREF 20Mhz to
40MHz; 2-CKREF
5MHz to 14MHz;
3-CKREF 8MHz to
14MHz
BGA, MLP
0-Power Down; 1-
CKREF 2Mhz to
5MHz; 2-CKREF
5MHz to 15MHz;
3-CKREF 10MHz
to 20MHz
BGA, MLP
BGA, MLP
0-Power Down; 1-
CKREF 2Mhz to
5MHz; 2-CKREF
5MHz to 15MHz;
3-CKREF 10MHz
to 26MHz
BGA, MLP
Modes
0-Power Down; 1-
4-bit control; 2-4-
bit control latch; 3-
2-bit control
Master/slave;
PAR/SPI; Strobe
selection;
Reset/standby;
Slew control
μSerDes Family Similarities and Features
Similarities across FIN24AC, FIN224AC, and FIN224C
Same Package
Same Pinout
Same Voltage Range
Same Voltage Translation Range
Same CTL Drive
New Features
Rolled LVCMOS Deserializer Edge Rates
More ESD Protection
More Wide CKP Pulse Width (FIN224AC)
Less Power (FIN224AC)