Overview
The 74AHCT245D, produced by Nexperia USA Inc., is an 8-bit bus transceiver with 3-state outputs. This device is designed for bidirectional data transmission and features an output enable (OE) and a send/receive (DIR) control for direction management. It is particularly useful in mixed voltage environments due to its overvoltage tolerant inputs up to 5.5 V. The 74AHCT245D operates within a wide supply voltage range from 2.0 V to 5.5 V, making it versatile for various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74AHCT245D |
| Package | SO20 (SOT163-1) |
| Supply Voltage (VCC) | 2.0 V to 5.5 V |
| Logic Switching Levels | TTL |
| Output Drive Capability | ± 8 mA |
| Propagation Delay (tpd) | 5.0 ns |
| Number of Bits | 8 |
| Maximum Frequency (fmax) | 60 MHz |
| Power Dissipation | Low |
| Ambient Temperature (Tamb) | -40 °C to +125 °C |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
Key Features
- 8-bit bus transceiver with 3-state outputs
- Output enable (OE) and send/receive (DIR) for direction control
- Overvoltage tolerant inputs up to 5.5 V
- Wide supply voltage range from 2.0 V to 5.5 V
- Balanced propagation delays
- All inputs have Schmitt-trigger action
- High noise immunity
- CMOS low power dissipation
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
Applications
The 74AHCT245D is suitable for a variety of applications across different industries, including:
- Automotive systems
- Industrial control systems
- Computing and data communication systems
- Consumer electronics
- Mobile and wearable devices
Q & A
- What is the primary function of the 74AHCT245D?
The primary function of the 74AHCT245D is to act as an 8-bit bus transceiver with 3-state outputs, enabling bidirectional data transmission. - What are the key control signals for the 74AHCT245D?
The key control signals are the output enable (OE) and the send/receive (DIR) signals. - What is the supply voltage range for the 74AHCT245D?
The supply voltage range is from 2.0 V to 5.5 V. - What type of logic switching levels does the 74AHCT245D support?
The 74AHCT245D supports TTL logic switching levels. - What is the maximum frequency of operation for the 74AHCT245D?
The maximum frequency of operation is 60 MHz. - What is the propagation delay of the 74AHCT245D?
The propagation delay is approximately 5.0 ns. - Is the 74AHCT245D overvoltage tolerant?
Yes, the 74AHCT245D has overvoltage tolerant inputs up to 5.5 V. - What is the operating temperature range for the 74AHCT245D?
The operating temperature range is from -40 °C to +125 °C. - What type of ESD protection does the 74AHCT245D have?
The 74AHCT245D has HBM and CDM ESD protection exceeding 2000 V and 1000 V respectively. - What are some common applications for the 74AHCT245D?
Common applications include automotive, industrial, computing, consumer electronics, and mobile devices.
