Overview
The 74HC245DB/C118 is an 8-bit non-inverting bus transceiver produced by Nexperia (previously part of NXP USA Inc.). This device is designed to facilitate bidirectional data transfer between two buses, making it a crucial component in various digital systems. It features 3-state outputs, which can be set to a high-impedance OFF-state using the output enable (OE) pin. The direction of data transfer is controlled by the send/receive (DIR) pin. This transceiver operates over a wide supply voltage range from 2.0 V to 6.0 V, making it versatile for different application environments.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HC245DB/C118 |
| Package | SSOP-20 (SOT339-1) |
| Supply Voltage Range | 2.0 V to 6.0 V |
| Operating Temperature Range | -40°C to +125°C |
| Number of Bits per Element | 8 |
| Output Type | 3-State, Non-Inverting |
| Input Levels | CMOS (for 74HC245), TTL (for 74HCT245) |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
| Latch-up Performance | Exceeds 100 mA per JESD 78 Class II Level B |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V.
- CMOS Low Power Dissipation: Low power consumption.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- Octal Bidirectional Bus Interface: Allows for 8-bit data transfer in both directions.
- 3-State Outputs: Outputs can be set to a high-impedance OFF-state.
- Compliance with JEDEC Standards: Meets JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
- ESD Protection: High ESD protection levels (HBM and CDM).
- Multiple Package Options: Available in various packages, including SSOP-20.
Applications
- Bus Interfaces: Ideal for connecting two buses in digital systems.
- Data Transfer Systems: Used in systems requiring bidirectional data transfer.
- Embedded Systems: Suitable for use in microcontroller and microprocessor-based systems.
- Industrial Control Systems: Can be used in industrial automation and control systems.
- Communication Systems: Applicable in various communication protocols and interfaces.
Q & A
- What is the primary function of the 74HC245DB/C118?
The primary function is to act as an 8-bit non-inverting bus transceiver, facilitating bidirectional data transfer between two buses.
- What is the supply voltage range for the 74HC245DB/C118?
The device operates over a supply voltage range from 2.0 V to 6.0 V.
- What types of input levels does the 74HC245DB/C118 support?
The device supports CMOS input levels for the 74HC245 and TTL input levels for the 74HCT245.
- How is the direction of data transfer controlled in the 74HC245DB/C118?
The direction of data transfer is controlled by the send/receive (DIR) pin.
- What is the purpose of the output enable (OE) pin?
The output enable (OE) pin sets the outputs to a high-impedance OFF-state when HIGH.
- Does the 74HC245DB/C118 have ESD protection?
Yes, it has high ESD protection levels (HBM and CDM).
- What are the operating temperature ranges for the 74HC245DB/C118?
The device operates from -40°C to +125°C.
- Is the 74HC245DB/C118 RoHS compliant?
Yes, it is RoHS compliant.
- What package types are available for the 74HC245DB/C118?
The device is available in SSOP-20 (SOT339-1) among other packages.
- What are some common applications of the 74HC245DB/C118?
Common applications include bus interfaces, data transfer systems, embedded systems, industrial control systems, and communication systems.
