Part A
74HC245D,653
NXP Hoa Kỳ Inc.
- Lifecycle
- Active
- Stock
- 8186 PCS
- Series
- Logic - Buffers, Drivers, Receivers, Transceivers
Replacement verdict
Compatible functional replacement candidate
The 74HC245D and 74HC245D,653 are functionally equivalent octal bus transceivers from the same manufacturer, sharing identical logic function, package type, and electrical characteristics. The only distinction is the packing method, making the 74HC245D,653 a direct drop-in replacement for the 74HC245D in any application.
Logic Function
High match
Package Type
High match
Supply Voltage Range
High match
Packing Method
High match
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,653 | Why it matters |
|---|---|---|---|
| Manufacturer | Nexperia | Nexperia | Same manufacturer ensures consistent process, quality, and documentation for both parts. |
| Logic Family | 74HC | 74HC | Matching logic family guarantees compatible voltage thresholds and switching behavior. |
| Function | Octal bus transceiver, 3-state | Octal bus transceiver, 3-state | Identical function means the parts are functionally interchangeable in bus-interface designs. |
| Supply Voltage Range | 2.0 V to 6.0 V | 2.0 V to 6.0 V | Same operating voltage window allows use in the same 3.3 V and 5 V systems. |
| Number of Channels | 8 | 8 | Equal channel count ensures the same bus width can be driven without redesign. |
| Output Type | 3-state | 3-state | 3-state outputs are required for shared-bus applications and must match for drop-in replacement. |
| Propagation Delay (typ.) | ~8 ns at 4.5 V | ~8 ns at 4.5 V | Similar propagation delay preserves timing margins in synchronous bus designs. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Identical temperature range supports the same industrial and automotive environments. |
| Package / Mounting | SO16 / Surface Mount | SO16 / Surface Mount | Same package and mounting style allow direct PCB footprint compatibility. |
| Packaging / Ordering | Tube | Tape & Reel | Different packaging affects assembly line handling and minimum order quantities, though the die is the same. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74HC245D,653 | 74HC245D |
|---|---|---|
| Series | 74HC | 74HC |
| Part Status | Discontinued at DigiKey | Active |
| Base Product Number | 74HC245 | - |
| 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 | - |
| Voltage - Supply | 2V ~ 6V | 2V ~ 6V |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (TR) | - |
| Current - Output High Low | - | 7.8mA, 7.8mA |