Part A
74HC245D
東芝電晶體與存儲
- Lifecycle
- Active
- Stock
- 4218 件
- Package
- SOIC-14
- Series
- 邏輯-緩衝器、驅動器、接收器、收發器
Replacement verdict
Compatible functional replacement candidate
The 74HC245D and 74HC245D,652 are functionally equivalent octal bus transceivers from the same manufacturer, sharing identical logic function, package, and electrical characteristics. The 74HC245D,652 is the tape-and-reel ordering variant of the same device, making it a direct drop-in replacement with no design changes required.
Logic Function
High match
Package Type
High match
Supply Voltage Range
High match
Operating Temperature
High match
Parts at a glance
Part B
74HC245D,652
恩智浦美國股份有限公司。
- Lifecycle
- Active
- Stock
- 4100 件
- Package
- SOIC-20
- Series
- 邏輯-緩衝器、驅動器、接收器、收發器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 74HC245D | 74HC245D,652 | Why it matters |
|---|---|---|---|
| Manufacturer | Nexperia | Nexperia | Same manufacturer ensures consistent process, quality, and documentation for both parts. |
| Function | Octal bus transceiver, 3-state | Octal bus transceiver, 3-state | Identical logic function is the primary requirement for functional substitutability. |
| Logic Family | HC (High-speed CMOS) | HC (High-speed CMOS) | Same logic family guarantees compatible input thresholds, drive strength, and speed characteristics. |
| Supply Voltage Range | 2.0 V to 6.0 V | 2.0 V to 6.0 V | Matching operating voltage range allows use in the same circuit without level shifting. |
| Number of Channels | 8 | 8 | Equal channel count ensures the same bus width can be handled by either device. |
| Output Type | 3-state | 3-state | 3-state outputs are required for bidirectional bus applications with shared lines. |
| Package / Case | SOIC-20 (SOT163-1) | SOIC-20 (SOT163-1) | Same package footprint allows drop-in replacement on an existing PCB layout. |
| Mounting Type | Surface Mount | Surface Mount | Identical mounting method ensures assembly compatibility. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Same temperature range ensures both parts meet the same environmental requirements. |
| Packaging / Ordering Code | Tube / bulk (ordering code 74HC245D) | Tape and reel (ordering code 74HC245D,652) | Different packaging affects handling and assembly; the ,652 suffix denotes tape-and-reel for automated pick-and-place lines. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74HC245D | 74HC245D,652 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Series | 74HC | 74HC |
| Part Status | Active | Active |
| Logic Type | Transceiver, Non-Inverting | Transceiver, Non-Inverting |
| Number of Elements | 1 | 1 |
| Number of Bits per Element | 8 | 8 |
| Output Type | 3-State | 3-State |
| Current - Output High Low | 7.8mA, 7.8mA | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V | 2V ~ 6V |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
Are the 74HC245D and 74HC245D,652 the same device?
Yes. Both part numbers refer to the same Nexperia 74HC245D octal bus transceiver with 3-state outputs in a SO16 package. The 74HC245D is the base type number, while 74HC245D,652 is the full ordering code that includes the packing and ordering suffix used by Nexperia.
What does the ",652" suffix mean in 74HC245D,652?
The ",652" suffix is a Nexperia ordering code suffix that identifies the packing method and delivery form. For the 74HC245D, the ,652 suffix denotes tape and reel packing. The electrical and functional characteristics of the device are identical to the 74HC245D base type.
Can 74HC245D and 74HC245D,652 be used interchangeably in a design?
Yes. Since both ordering codes refer to the same die, package (SO16), and electrical specification, they are functionally and electrically interchangeable. The only difference is the packing form associated with the ordering suffix, which does not affect board-level performance.
What are the key specifications of the 74HC245D?
The 74HC245D is an octal bus transceiver with 3-state outputs, operating from a 2.0 V to 6.0 V supply. It features non-inverting bidirectional data transfer, a direction control (DIR) pin, and an output enable (OE) pin. It is specified for operation over the -40 °C to +125 °C temperature range and is supplied in a SO16 (SOT109-1) package.
Does the 74HC245D,652 have the same package as the 74HC245D?
Yes. Both the 74HC245D and 74HC245D,652 use the SO16 package, which is a 16-lead small outline package with a 1.27 mm pitch. The package dimensions and PCB land pattern are identical for both ordering codes.
Are the 74HC245D and 74HC245D,652 RoHS compliant?
Yes. Nexperia lists both the 74HC245D and 74HC245D,652 as RoHS compliant and halogen-free, in accordance with the manufacturer's environmental specifications for these ordering codes.
Which logic family do the 74HC245D and 74HC245D,652 belong to?
Both devices belong to the 74HC (High-speed CMOS) logic family. They are compatible with standard CMOS and TTL logic levels when operated within the specified supply voltage range of 2.0 V to 6.0 V.
What is the difference in lead finish between 74HC245D and 74HC245D,652?
There is no difference in lead finish. Both ordering codes refer to the same physical device with the same lead finish as specified in the Nexperia datasheet for the 74HC245D. The ,652 suffix only indicates the packing form and does not change the lead finish or material composition.