74HC257; 74HCT257
Parametrics
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC257D | 2.0 - 6.0 | CMOS | ± 7.8 | 11 | low | -40~125 | 92 | 9.6 | 52 | SO16 |
| 74HC257PW | 2.0 - 6.0 | CMOS | ± 7.8 | 11 | low | -40~125 | TSSOP16 | |||
| 74HCT257D | 4.5 - 5.5 | TTL | ± 6 | 13 | low | -40~125 | SO16 | |||
| 74HCT257PW | 4.5 - 5.5 | TTL | ± 6 | 13 | low | -40~125 | 125 | 4.5 | 54.6 | TSSOP16 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HC257D | 74HC257D,653 (933713640653) |
Active | 74HC257D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
Not available |
| 74HC257PW | 74HC257PW,118 (935174680118) |
Active | HC257 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT403-1_118 |
| 74HCT257D | 74HCT257D,653 (933713650653) |
Active | 74HCT257D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
Not available |
| 74HCT257PW | 74HCT257PW,118 (935188400118) |
Active | HCT257 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT403-1_118 |
All type numbers in the table below are discontinued.
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HC257D | 74HC257D,652 (933713640652) |
Withdrawn / End-of-life | 74HC257D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT109-1_652 |
| 74HC257DB | 74HC257DB,112 (935188660112) |
Obsolete | HC257 |
SSOP16 (SOT338-1) |
SOT338-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
Not available |
| 74HC257DB,118 (935188660118) |
Obsolete | HC257 | Not available | ||||
| 74HCT257D | 74HCT257D,652 (933713650652) |
Withdrawn / End-of-life | 74HCT257D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT109-1_652 |
| 74HCT257DB | 74HCT257DB,112 (935190960112) |
Obsolete | HCT257 |
SSOP16 (SOT338-1) |
SOT338-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
Not available |
| 74HCT257DB,118 (935190960118) |
Obsolete | HCT257 | Not available |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC257D | 74HC257D,653 | 74HC257D |
|
|
| 74HC257PW | 74HC257PW,118 | 74HC257PW |
|
|
| 74HCT257D | 74HCT257D,653 | 74HCT257D |
|
|
| 74HCT257PW | 74HCT257PW,118 | 74HCT257PW |
|
|
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC257D | 74HC257D,652 | 74HC257D |
|
|
| 74HC257DB | 74HC257DB,112 | 74HC257DB |
|
|
| 74HC257DB | 74HC257DB,118 | 74HC257DB |
|
|
| 74HCT257D | 74HCT257D,652 | 74HCT257D |
|
|
| 74HCT257DB | 74HCT257DB,112 | 74HCT257DB |
|
|
| 74HCT257DB | 74HCT257DB,118 | 74HCT257DB |
|
|
Documentation (18)
| File name | Title | Type | Date |
|---|---|---|---|
| 74HC_HCT257 | Quad 2-input multiplexer; 3-state | Data sheet | 2024-03-22 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| mgr280 | Block diagram: 74HC257D, 74HC257DB, 74HC257N, 74HC257PW, 74HCT257D, 74HCT257DB, 74HCT257N, 74HCT257PW | Block diagram | 2009-11-04 |
| SOT109-1 | 3D model for products with SOT109-1 package | Design support | 2020-01-22 |
| SOT403-1 | 3D model for products with SOT403-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SO16_SOT109-1_mk | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body | Marcom graphics | 2017-01-28 |
| SSOP16_SOT338-1_mk | plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Marcom graphics | 2017-01-28 |
| TSSOP16_SOT403-1_mk | plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 |
| SOT109-1 | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body | Package information | 2023-11-07 |
| SOT338-1 | plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Package information | 2022-06-20 |
| SOT403-1 | plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body | Package information | 2023-11-08 |
| SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SSOP-TSSOP-VSO-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
| SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
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