SCAS294O JANUARY 1993 – June 2015 SN54LVC257A , SN74LVC257A
PRODUCTION DATA.
These quadruple 2-line to 1-line data selectors and multiplexers are designed for 1.65-V to 3.6-V VCC
operation.
The SNx4LVC257A devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at a high logic level.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V or 5-V system
environment.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
SN74LVC257A | VQFN (16) | 3.50 mm × 4.00 mm |
SOIC (16) | 9.90 mm × 3.91 mm | |
SO (16) | 10.30 mm × 5.30 mm | |
SSOP (16) | 5.50 mm × 6.20 mm | |
TSSOP (16) | 4.40 mm × 5.00 mm | |
SN54LVC257A | CDIP (16) | 6.92 mm × 21.34 mm |
CFP (16) | 10.30 mm × 6.73 mm | |
LCCC (20) | 8.89 mm × 8.89 mm |