Datasheet: https://rocelec.widen.net/view/pdf/samb4cy3tk/RSELS20021-1.pdf?t.download=true&u=5oefqw
Status: Active
RoHS Compliant: —
Price Quantity: 1820
Series: 74LS
Package: Bulk
Type: Multiplexer
Circuit: 4 x 2:1
Independent Circuits: 1
Current – Output High, Low: 2.6mA, 24mA
Voltage Supply Source: Single Supply
Voltage – Supply: 4.75V ~ 5.25V
Operating Temperature: 0°C ~ 70°C
Grade: –
Qualification: –
Mounting Type: Surface Mount
Package / Case: 16-SOIC (0.154″, 3.90mm Width)
Supplier Device Package: 16-SOIC

Datasheet: https://rocelec.widen.net/view/pdf/kzozzxtz1i/sn74ls257b-d.pdf?t.download=true&u=ovmfp3
Status: Active
RoHS Compliant: —
Price Quantity: 1820
Series: 74LS
Package: Bulk
Type: Multiplexer
Circuit: 4 x 2:1
Independent Circuits: 1
Current – Output High, Low: 2.6mA, 24mA
Voltage Supply Source: Single Supply
Voltage – Supply: 4.75V ~ 5.25V
Operating Temperature: 0°C ~ 70°C
Grade: –
Qualification: –
Mounting Type: Surface Mount
Package / Case: 16-SOIC (0.154″, 3.90mm Width)
Supplier Device Package: 16-SOIC