Features
- Balanced propagation delays
- All inputs have Schmitt-trigger action
- Demultiplexing capability
- Multiple input enable for easy expansion
- Ideal for memory chip select decoding
- Inputs accepts voltages higher than VCC
- For 74AHC138 only: operates with CMOS input levels
- For 74AHCT138 only: operates with TTL input levels
- ESD protection:
- HBM JESD22-A114E exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
- CDM JESD22-C101C exceeds 1000 V
- Multiple package options
- Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Target applications
Parametrics
Type number | Product status | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
---|---|---|---|---|---|---|---|---|---|---|---|
74AHC138BQ | Production | 2.0 - 5.5 | CMOS | +/- 8 | 4.4 | low | -40~125 | 93 | 13.8 | 62 | DHVQFN16 |
Package
Type number | Package | Outline version | Reflow-/Wave soldering | Packing | Status | Marking | Orderable part number, (Ordering code (12NC)) |
---|---|---|---|---|---|---|---|
74AHC138BQ | ![]() DHVQFN16 (SOT763-1) | SOT763-1 | Reel 7" Q1/T1 | Active | AHC138 | 74AHC138BQ,115 ( 9352 855 72115 ) |
Quality, reliability & chemical content
Type number | Orderable part number | Chemical content | RoHS / RHF | Leadfree conversion date | EFR | IFR | MTBF (hour) | MSL | MSL leadfree |
---|---|---|---|---|---|---|---|---|---|
74AHC138BQ | 74AHC138BQ,115 | 74AHC138BQ | ![]() ![]() | Always Pb-free | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
Documentation (8)
File name | Title | Type | Date |
---|---|---|---|
74AHC_AHCT138 | 3-to-8 line decoder/demultplexer; inverting | Data sheet | 2017-04-07 |
AN11106 | Pin FMEA for AHC/AHCT family | Application note | 2019-01-09 |
AN223 | Ground and VCC Bounce of High-Speed Integrated Circuits | Application note | 2013-03-13 |
AN252 | Live Insertion Aspects of Philips Logic Families | Application note | 2013-03-13 |
AN10156 | Sorting through the low voltage logic maze | Application note | 2013-03-13 |
ahc138 | ahc138 IBIS model | IBIS model | 2013-04-07 |
SOT763-1_115 | DHVQFN16; Reel pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,115 or X Ordering code (12NC) ending 115 | Packing | 2016-07-05 |
SOT763-1 | plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm body | Outline drawing | 2018-11-14 |
Support
If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.
Models
File name | Title | Type | Date |
---|---|---|---|
ahc138 | ahc138 IBIS model | IBIS model | 2013-04-07 |
Ordering
Distributor | Buy online |
---|---|
Arrow Electronics | Buy online |
Avnet Express | Buy online |
Chip One Stop | Buy online |
DigiKey | Buy online |
Farnell Europe | Buy online |
Future Electronics | Buy online |
Mouser Electronics | Buy online |
Newark | Buy online |
Newark element14 | Buy online |
Rochester Electronics | Buy online |
Sample
As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.
Sample orders normally take 2-4 days for delivery.
If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.