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54AC164245 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. 54AC164245
Description  Rad-hard 16-bit transceiver, 3.3 V to 5 V bidirectional level shifter
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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54AC164245 Datasheet(HTML) 4 Page - STMicroelectronics

 
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Functional description
54AC164245
4/22
Doc ID 18093 Rev 2
Table 3.
Pin descriptions
Pin n°
Symbol
Name and function
1
DIR1
Direction control inputs
2, 3, 5, 6, 8, 9, 11, 12
1B1 to 1B8
Side B inputs or 3-state outputs (5 V port)
4,10, 15, 21, 28, 34, 39, 45
VSS
Reference voltage to ground
7, 18
VDD1
Supply voltage (5 V)
13, 14, 16, 17, 19, 20, 22, 23
2B1 to 2B8
Side B inputs or 3-state outputs (5 V port)
24
DIR2
Direction control inputs
25
nG2
Output enable inputs (active low)
31, 42
VDD2
Supply voltage (3.3 V)
47, 46, 44, 43, 41, 40, 38, 37
1A1 to 1A8
Side A inputs or 3-state outputs (3.3 V port)
36, 35, 33, 32, 30, 29, 27, 26
2A1 to 2A8
Side A inputs or 3-state outputs (3.3 V port)
48
nG1
Output enable inputs (active low)


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