SN74HC245NE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The SN74HC245NE4 is an octal bidirectional bus transceiver with 3-state outputs in a 20-pin DIP package. Features HC logic operating at 2V to 6V with 6mA output current and 150pF load capacitance for robust bus driving. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HC245NE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal bidirectional transceiver with direction control allows flexible bus communication in both directions
- 3-state outputs enable multiple transceivers to share the same bus without signal contention
- HC CMOS logic family supports 2V to 6V operation with low static power consumption
- 20-pin DIP package ensures easy prototyping and compatibility with breadboards and through-hole PCBs
Applications
The SN74HC245NE4 is widely used for bidirectional data bus interfacing between microprocessors and peripheral devices in embedded systems, memory expansion, and microcontroller development boards. Its 3-state outputs make it ideal for multi-master bus architectures and bus isolation in industrial control and consumer electronics. The device is commonly found in data acquisition systems, hobbyist projects, and legacy hardware designs that benefit from the 20-pin DIP form factor.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 150pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.006A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 26ns |
| Propagation Delay (tpd) | 170ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| ## SN74HC245NE4 Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74HC245NE4:
Bus Transceiver, HC/UH Series, 1-Func, 8-Bit, True Output, CMOS, CDIP20
suggested
suggested
Frequently Asked Questions
What voltage range does the SN74HC245NE4 support?
The SN74HC245NE4 operates over a supply voltage range of 2V to 6V, making it compatible with both 3.3V and 5V logic families and suitable for use in a wide range of digital systems and microcontroller platforms.
How is the data direction controlled on the SN74HC245NE4?
The SN74HC245NE4 has a dedicated direction control (DIR) pin that determines whether data flows from the A bus to the B bus or vice versa, allowing bidirectional communication over an 8-bit data bus with a single control signal.
What is the maximum output current of the SN74HC245NE4?
The SN74HC245NE4 provides a maximum output low current (IOL) of 6mA per channel and supports load capacitances up to 150pF, suitable for driving typical digital bus lines at standard HC logic switching speeds.
Can the SN74HC245NE4 be used to isolate bus segments?
Yes, the SN74HC245NE4 features 3-state outputs controlled by an output enable (OE) pin. When disabled, all outputs are placed in a high-impedance state, effectively isolating that bus section from the rest of the circuit to prevent bus conflicts.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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