Features and benefits
- Complies with JEDEC standard no. 7A
- Input levels:
- For 74HC194: CMOS level
- Shift-left and shift-right capability
- Synchronous parallel and serial data transfer
- Easily expanded for both serial and parallel operation
- Asynchronous master reset
- Hold ('do nothing') mode
- ESD protection:
- HBM JESD22-A114F exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
- Specified from -40 °C to +85 °C and -40 °C to +125 °C
Applications
- Serial-to-parallel data conversion
- Remote control holding register
Parametrics
Type number | Product status | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | No of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
74HC194D | End of life | 2.0 - 6.0 | CMOS | ± 5.2 | 14 | 102 | 4 | low | -40~125 | 78 | 3.2 | 36 | SO16 |
Package
All type numbers in the table below are discontinued. See the table Discontinuation information for more information.
Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
---|---|---|---|---|---|---|---|
74HC194D | 74HC194D,653 ( 9337 140 90653 ) | Discontinued / End-of-life | 74HC194D | ![]() SO16 (SOT109-1) | SOT109-1 | SO-SOJ-REFLOW SO-SOJ-WAVE | Reel 13" Q1/T1 CECC |
74HC194D,652 ( 9337 140 90652 ) | Discontinued / End-of-life | 74HC194D | Bulk Pack, CECC |
Discontinuation information
Type number | Orderable part number | Ordering code | Last time buy date | Last time delivery date | Replacement product | Status | Comments |
---|---|---|---|---|---|---|---|
74HC194D | 74HC194D,653 | 933714090653 | 2021-06-30 | 2021-12-31 | No replacement | Full withdrawal | |
74HC194D | 74HC194D,652 | 933714090652 | 2021-06-30 | 2021-12-31 | No replacement | Full withdrawal |
Quality, reliability & chemical content
All type numbers in the table below are discontinued. See the table Discontinuation information for more information.
Type number | Orderable part number | Chemical content | RoHS / RHF | MSL | MSL leadfree |
---|---|---|---|---|---|
74HC194D | 74HC194D,653 | 74HC194D | ![]() ![]() | 1 | 1 |
74HC194D | 74HC194D,652 | 74HC194D | ![]() ![]() | 1 | 1 |
Documentation (5)
File name | Title | Type | Date |
---|---|---|---|
74HC194 | 4-bit bidirectional universal shift register | Data sheet | 2017-03-17 |
AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
Support
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