74HC245; 74HCT245
Octal bus transceiver; 3-state
The 74HC245; 74HCT245 is an 8-bit transceiver with 3-state outputs. The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Features and benefits
Wide supply voltage range from 2.0 to 6.0 V
CMOS low power dissipation
High noise immunity
Octal bidirectional bus interface
Non-inverting 3-state outputs
Input levels:
For 74HC245: CMOS level
For 74HCT245: TTL level
Complies with JEDEC standards
JESD8C (2.7 V to 3.6 V)
JESD7A (2.0 V to 6.0 V)
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
ESD protection:
-
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Parametrics
| Type number | VCC(A) (V) | VCC(B) (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Nr of bits | fmax (MHz) | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC245BQ | n.a. | n.a. | CMOS | ± 7.8 | 7.0 | 8 | 36 | low | -40~85 | DHVQFN20 |
| 74HC245D | n.a. | n.a. | CMOS | ± 7.8 | 7.0 | 8 | 36 | low | -40~125 | SO20 |
| 74HC245PW | n.a. | n.a. | CMOS | ± 7.8 | 7.0 | 8 | 36 | low | -40~125 | TSSOP20 |
| 74HCT245BQ | n.a. | n.a. | TTL | ± 6 | 10 | 8 | 36 | low | -40~125 | DHVQFN20 |
| 74HCT245D | n.a. | n.a. | TTL | ± 6 | 10 | 8 | 36 | low | -40~125 | SO20 |
| 74HCT245PW | n.a. | n.a. | TTL | ± 6 | 10 | 8 | 36 | low | -40~125 | TSSOP20 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HC245BQ | 74HC245BQ,115 (935278645115) |
Active | HC245 |
DHVQFN20 (SOT764-1) |
SOT764-1 | SOT764-1_115 | |
| 74HC245D | 74HC245D,653 (933713580653) |
Active | 74HC245D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
| 74HC245PW | 74HC245PW,118 (935183570118) |
Active | HC245 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_118 |
| 74HCT245BQ | 74HCT245BQ,115 (935278646115) |
Active | HCT245 |
DHVQFN20 (SOT764-1) |
SOT764-1 | SOT764-1_115 | |
| 74HCT245D | 74HCT245D,653 (933713590653) |
Active | 74HCT245D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
| 74HCT245PW | 74HCT245PW,118 (935165230118) |
Active | HCT245 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_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 |
|---|---|---|---|---|---|---|---|
| 74HC245D | 74HC245D,652 (933713580652) |
Withdrawn / End-of-life | 74HC245D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
| 74HC245DB | 74HC245DB,112 (935166910112) |
Obsolete | HC245 |
SSOP20 (SOT339-1) |
SOT339-1 |
SSOP-TSSOP-VSO-WAVE
|
Not available |
| 74HC245DB,118 (935166910118) |
Withdrawn / End-of-life | HC245 | SOT339-1_118 | ||||
| 74HC245PW | 74HC245PW,112 (935183570112) |
Withdrawn / End-of-life | HC245 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
Not available |
| 74HCT245D | 74HCT245D,652 (933713590652) |
Withdrawn / End-of-life | 74HCT245D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
| 74HCT245DB | 74HCT245DB,112 (935166900112) |
Obsolete | HCT245 |
SSOP20 (SOT339-1) |
SOT339-1 |
SSOP-TSSOP-VSO-WAVE
|
Not available |
| 74HCT245DB,118 (935166900118) |
Withdrawn / End-of-life | HCT245 | SOT339-1_118 | ||||
| 74HCT245PW | 74HCT245PW,112 (935165230112) |
Withdrawn / End-of-life | HCT245 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
Not available |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC245BQ | 74HC245BQ,115 | 74HC245BQ |
|
|
| 74HC245D | 74HC245D,653 | 74HC245D |
|
|
| 74HC245PW | 74HC245PW,118 | 74HC245PW |
|
|
| 74HCT245BQ | 74HCT245BQ,115 | 74HCT245BQ |
|
|
| 74HCT245D | 74HCT245D,653 | 74HCT245D |
|
|
| 74HCT245PW | 74HCT245PW,118 | 74HCT245PW |
|
|
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC245D | 74HC245D,652 | 74HC245D |
|
|
| 74HC245DB | 74HC245DB,112 | 74HC245DB |
|
|
| 74HC245DB | 74HC245DB,118 | 74HC245DB |
|
|
| 74HC245PW | 74HC245PW,112 | 74HC245PW |
|
|
| 74HCT245D | 74HCT245D,652 | 74HCT245D |
|
|
| 74HCT245DB | 74HCT245DB,112 | 74HCT245DB |
|
|
| 74HCT245DB | 74HCT245DB,118 | 74HCT245DB |
|
|
| 74HCT245PW | 74HCT245PW,112 | 74HCT245PW |
|
|
Documentation (16)
| File name | Title | Type | Date |
|---|---|---|---|
| 74HC_HCT245 | Octal bus transceiver; 3-state | Data sheet | 2021-09-06 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| SOT764-1 | 3D model for products with SOT764-1 package | Design support | 2019-10-03 |
| SOT163-1 | 3D model for products with SOT163-1 package | Design support | 2020-01-22 |
| SOT360-1 | 3D model for products with SOT360-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| DHVQFN20_SOT764-1_mk | plastic, dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 2.5 mm x 4.5 mm x 0.85 mm body | Marcom graphics | 2017-01-28 |
| TSSOP20_SOT360-1_mk | plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 |
| SOT764-1 | plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 4.5 mm x 2.5 mm x 1 mm body | Package information | 2022-06-21 |
| SOT163-1 | plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm body | Package information | 2022-06-20 |
| SOT339-1 | plastic, shrink small outline package; 20 leads; 0.65 mm pitch; 7.2 mm x 5.3 mm x 2 mm body | Package information | 2020-04-21 |
| SOT360-1 | plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body | Package information | 2022-06-21 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
| HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
| 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 |
Support
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Models
| File name | Title | Type | Date |
|---|---|---|---|
| SOT764-1 | 3D model for products with SOT764-1 package | Design support | 2019-10-03 |
| SOT163-1 | 3D model for products with SOT163-1 package | Design support | 2020-01-22 |
| SOT360-1 | 3D model for products with SOT360-1 package | Design support | 2020-01-22 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
Ordering, pricing & availability
Sample
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