74LCX257FT Toshiba, Multiplexer Quad, -0.5 → 6.5 V, 16-Pin TSSOP
Product DetailsThe 74LCX257FT is a high-performance CMOS multiplexer. Designed for use in 3.3 V systems, it achieves high- speed operation while maintaining the CMOS low-power dissipation. The device is designed for low-voltage (3.3 V) VCC applications, but it could be used to interface to 5 V supply environment for inputs. It is composed of four independent 2-channel multiplexers with common select and OE. If OE is set high, the outputs are held in a high-impedance state. When SELECT is set low, "A" data inputs are enabled. Conversely, when SELECT is high, "B" data inputs are enabled. All inputs are equipped with protection circuits against static discharge.
Wide operating temperature range: Topr = -40 to 125
Low-voltage operation: VCC = 1.65 to 3.6 V
High-speed operation: tpd = 7.0 ns (max) (VCC = 3.3 ± 0.3 V)
Output current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V)
Power-down protection provided on all inputs and outputs
Pin and function compatible with the 74 series
(74LVC/ALVC/ etc.) 257 type
SpecificationsAttribute Value Configuration Quad Package Type TSSOP Mounting Type Surface Mount Typical Single Supply Voltage -0.5 → 6.5 V Switch Type Multiplexer Pin Count 16 Power Supply Type Single Input Signal Type CMOS Output Signal Type CMOS Minimum Operating Temperature -40 °C Maximum Operating Temperature +125 °C Number of Channels per Chip 2 Propagation Delay Time 20ns Height 1mm Automotive Standard AEC-Q100 Number of Inputs per Element 1 Multiplexer Architecture 1:1 Width 4.4mm Maximum Power Dissipation 180 mW Number of Outputs per Element 1 Dimensions 5 x 4.4 x 1mm Length 5mm
The 74LCX257FT is a high-performance CMOS multiplexer. Designed for use in 3.3 V systems, it achieves high- speed operation while maintaining the CMOS low-power dissipation. The device is designed for low-voltage (3.3 V) VCC applications, but it could be used to interface to 5 V supply environment for inputs. It is composed of four independent 2-channel multiplexers with common select and OE. If OE is set high, the outputs are held in a high-impedance state. When SELECT is set low, "A" data inputs are enabled. Conversely, when SELECT is high, "B" data inputs are enabled. All inputs are equipped with protection circuits against static discharge.
Wide operating temperature range: Topr = -40 to 125
Low-voltage operation: VCC = 1.65 to 3.6 V
High-speed operation: tpd = 7.0 ns (max) (VCC = 3.3 ± 0.3 V)
Output current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V)
Power-down protection provided on all inputs and outputs
Pin and function compatible with the 74 series
(74LVC/ALVC/ etc.) 257 type
| Attribute | Value |
|---|---|
| Configuration | Quad |
| Package Type | TSSOP |
| Mounting Type | Surface Mount |
| Typical Single Supply Voltage | -0.5 → 6.5 V |
| Switch Type | Multiplexer |
| Pin Count | 16 |
| Power Supply Type | Single |
| Input Signal Type | CMOS |
| Output Signal Type | CMOS |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +125 °C |
| Number of Channels per Chip | 2 |
| Propagation Delay Time | 20ns |
| Height | 1mm |
| Automotive Standard | AEC-Q100 |
| Number of Inputs per Element | 1 |
| Multiplexer Architecture | 1:1 |
| Width | 4.4mm |
| Maximum Power Dissipation | 180 mW |
| Number of Outputs per Element | 1 |
| Dimensions | 5 x 4.4 x 1mm |
| Length | 5mm |