74HCT257D: Quad 2-input multiplexer; 3-state
The 74HC257; 74HCT257 is a quad 2-input multiplexer with 3-state outputs. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
74HCT257D: Product Block Diagram
sot109-1_3d
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| Quad 2-input multiplexer; 3-state (REV 7.0) PDF (165.0 kB) 74HC_HCT257 [English] | 02 Feb 2016 |
Application Notes (2)
| Name/Description | Modified Date |
|---|---|
| Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English] | 13 Mar 2013 |
| Pin FMEA 74HC/74HCT family (REV 1.0) PDF (51.0 kB) AN11044 [English] | 16 Mar 2011 |
Users Guides (1)
| Name/Description | Modified Date |
|---|---|
| HC/T User Guide (REV 1.0) PDF (508.0 kB) HCT_USER_GUIDE [English] | 01 Nov 1997 |
Package Information (1)
| Name/Description | Modified Date |
|---|---|
| plastic small outline package; 16 leads; body width 3.9 mm (REV 1.0) PDF (192.0 kB) SOT109-1 [English] | 08 Feb 2016 |
Packing (1)
| Name/Description | Modified Date |
|---|---|
| SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 4.0) PDF (210.0 kB) SOT109-1_118 [English] | 24 Apr 2013 |
Supporting Information (2)
| Name/Description | Modified Date |
|---|---|
| Footprint for reflow soldering (REV 1.0) PDF (9.0 kB) SO-SOJ-REFLOW [English] | 08 Oct 2009 |
| Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE [English] | 08 Oct 2009 |
Ordering Information
| Product | Status | Family | Function | VCC (V) | Description | Logic switching levels | Output drive capability (mA) | Package version | tpd (ns) | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT257D/AU | Active | 4.5 - 5.5 | TTL | +/- 6 | 13 | low | -40~125 | 92 | 9.6 | 52 | SO16 | |||||
| 74HCT257D | Active | HC(T) | Digital multiplexers | 4.5 - 5.5 | TTL enabled (3-State) | TTL | +/- 6 | SOT109-1 | 13 | low | -40~125 | 92 | 9.6 | 52 | SO16 | 16 |
| 74HCT257D/S71 | No Longer Manufactured | 4.5 - 5.5 | TTL | +/- 6 | 13 | low | -40~125 | 92 | 9.6 | 52 | SO16 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT257D | | SOT109-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE | Reel 13" Q1/T1 CECC | Active | 74HCT257D,653 (9337 136 50653) | 74HCT257D | 74HCT257D |    | week 35, 2004 | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
| Bulk Pack, CECC | Active | 74HCT257D,652 (9337 136 50652) | 74HCT257D | 74HCT257D | | week 35, 2004 | 84.9 | 6.62 | 1.51E8 | 1 | 1 | ||||
| 74HCT257D/AU | | SOT109-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE | Reel 13" Q1/T1 | Active | 74HCT257D/AUJ (9353 012 66118) | 74HCT257D | 74HCT257D/AU | | Always Pb-free | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
| 74HCT257D/S71 | | SOT109-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE | Reel 13" Q1/T1 | Withdrawn | 74HCT257D/S71,118 (9350 667 50118) | Standard Marking |  | week 47, 2005 | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
- Quad 2-input multiplexer; 3-state 74HCT257PW
- Live Insertion Aspects of Philips Logic Families 74HC_T_245_Q100
- Pin FMEA 74HC/74HCT family 74HC_T_597_Q100
- HC/T User Guide 74HCU04PW
- plastic small outline package; 16 leads; body width 3.9 mm NPIC6C596A_Q100
- Footprint for reflow soldering NPIC6C596A_Q100
- Footprint for wave soldering NPIC6C596A_Q100
- SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... NPIC6C596A_Q100
- 74HC_T_257
- SA614A
