2 layers80.1 × 56.9 mm
Overview
The 74LS257PC is a signal Switches, Multiplexers, Decoder made by Texas Instruments in a DIP-16 package with 16 pins. 0℃~+70℃ 12mA 2.6mA 24mA 27ns@5V,150pF 4.75V~5.25V 74LS Output enable high-impedance、Tri-state output DIP-16 Signal Switches, Multiplexers, Decoders.
PCBKit's library has its KiCad symbol (74xx:74LS257, from KiCad's library) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3208849). 59 open-source boards in 43 repositories on GitHub use it.
Symbol
Footprint
Order codes
1- 74LS257PCLCSC C3208849
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | S | Input |
| 2 | I0a | Input |
| 3 | I1a | Input |
| 4 | Za | Tri-state |
| 5 | I0b | Input |
| 6 | I1b | Input |
| 7 | Zb | Tri-state |
| 8 | GND | Power in |
| 9 | Zd | Tri-state |
| 10 | I1d | Input |
| 11 | I0d | Input |
| 12 | Zc | Tri-state |
| 13 | I1c | Input |
| 14 | I0c | Input |
| 15 | OE | Input |
| 16 | VCC | Power in |
Open-source boards using it
All 59- 4 layers99 × 91.7 mm
- 2 layers162.2 × 134.6 mm
- 4 layers330.2 × 215.9 mm
- 2 layers123.2 × 77.5 mm
- 2 layers157.5 × 73.9 mm
- 2 layers52 × 45 mm
OpenC16RamExpansion
SukkoPera/OpenC16RamExpansion
Open Hardware 64 Kb RAM Expansion for the Commodore 16
21 parts16 - 2 layers164.5 × 71.8 mm
Jupiter II Expansion
ricaflops/Jupiter-II-Expansion
Expansion board for Jupiter-II computer
99 parts15MIT
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Is there a KiCad symbol and footprint for the 74LS257PC?
Yes. The symbol is 74xx:74LS257 and the footprint Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 74LS257PC?
DIP-16, with 16 pins. Its footprint is drawn on this page.
Where is the 74LS257PC datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the 74LS257PC?
JLCPCB lists it as part C3208849, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 74LS257PC?
Parts like it in the library: the SN74HC138NED-GMIC by GREENMICRO, the 74HC138N by HGSEMI, the 74HC139N by HGSEMI and the 74HC238N by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the 74LS257PC?
59 boards in 43 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
SN74HC138NED-GMIC
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DIP-16-40℃~+85℃ 160uA 25mA 2V~6V 3/8 35ns@6.0V,50pF 4mA 74HC Decoder Reverse function Single Supply DIP-16 Signal Switches, Multiplexers, Decoders ROHSHGSEMISignal Switches, Multiplexers, Decoders74HC139N
DIP-16-40℃~+85℃ 160uA 2V~6V 30ns@6.0V,50pF 4/8 5.2mA 5.2mA 74HC Decoder Level shifting Single Supply DIP-16 Signal Switches, Multiplexers, Decoders ROHSHGSEMISignal Switches, Multiplexers, Decoders74HC238N
DIP-16-40℃~+105℃ 26ns@6.0V,50pF 2V~6V 6/8 74HC Decoder Single Supply DIP-16 Signal Switches, Multiplexers, Decoders ROHSHGSEMISignal Switches, Multiplexers, DecodersSN74HC138N
DIP-16-40℃~+85℃ 15ns@6V,50pF 2V~6V 3/8 5.2mA 5.2mA 74HC 80uA Decoder Single Supply DIP-16 Signal Switches, Multiplexers, Decoders ROHSTexas InstrumentsSignal Switches, Multiplexers, DecodersSN74LS148N
PDIP-160℃~+70℃ 27ns@6V,50pF 4.75V~5.25V 400uA 80uA 8mA Single Supply PDIP-16 Shift Registers ROHSTexas InstrumentsSignal Switches, Multiplexers, DecodersSN74LS153N
PDIP-160℃~+70℃ 17ns@5V,15pF 4.75V~5.25V 400uA 74LS 8/2 8mA Multiplexer Single Supply PDIP-16 Signal Switches, Multiplexers, Decoders ROHSTexas InstrumentsSignal Switches, Multiplexers, Decoders74HC4053N
DIP-16-40℃~+85℃ 2V~5.5V 3/6 5ns@4.5V,50pF 74HC 8uA Dual Supply Output enable high-impedance、Tri-state output DIP-16 Signal Switches, Multiplexers, Decoders ROHSHGSEMISignal Switches, Multiplexers, Decoders