Overview
The SN74AHC245PWRG4 is an octal bus transceiver with 3-state outputs, designed by Texas Instruments. This component is part of the SN74AHC245 series and is packaged in a 20-pin TSSOP (Thin Shrink Small Outline Package). It is optimized for asynchronous two-way communication between data buses, making it suitable for a wide range of applications. The device operates within a voltage range of 2V to 5.5V, ensuring compatibility with various system designs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage Range) | –0.5 | 7 | V | |
| VI (Input Voltage Range) | –0.5 | 7 | V | |
| VO (Output Voltage Range) | –0.5 | VCC + 0.5 | V | |
| IOH (Continuous Output Current) | ±25 | mA | ||
| Tstg (Storage Temperature Range) | –65 | 150 | °C | |
| RθJA (Junction-to-Ambient Thermal Resistance) | 122.3 | °C/W | ||
| tPLH (Propagation Delay Time, A or B to B or A) | 4 | 5.5 | 6.5 | ns (at VCC = 5V, CL = 15pF) |
Key Features
- Operating voltage range: 2V to 5.5V
- Latch-up performance exceeds 250mA per JESD 17
- 3-state outputs for bus driving or signal isolation
- High-speed operation: tPLH/tPHL = 4ns/5.5ns (max) at VCC = 5V, CL = 15pF
- Low power consumption
- ESD protection: Human body model (HBM) per ANSI/ESDA/JEDEC JS-001
Applications
- Servers
- PCs and notebooks
- Network switches
- Wearable health and fitness devices
- Telecom infrastructures
- Electronic points of sale
Q & A
- What is the operating voltage range of the SN74AHC245PWRG4? The operating voltage range is 2V to 5.5V.
- What is the maximum continuous output current for this device? The maximum continuous output current is ±25 mA.
- What is the junction-to-ambient thermal resistance for the TSSOP package? The junction-to-ambient thermal resistance is 122.3 °C/W.
- What is the propagation delay time for this device at VCC = 5V and CL = 15pF? The propagation delay time (tPLH/tPHL) is 4ns/5.5ns (max).
- Does the SN74AHC245PWRG4 have ESD protection? Yes, it has ESD protection according to the Human body model (HBM) per ANSI/ESDA/JEDEC JS-001.
- What are the common applications of the SN74AHC245PWRG4? Common applications include servers, PCs and notebooks, network switches, wearable health and fitness devices, telecom infrastructures, and electronic points of sale.
- What package type is the SN74AHC245PWRG4 available in? It is available in a 20-pin TSSOP package.
- What is the storage temperature range for this device? The storage temperature range is –65°C to 150°C.
- Does the SN74AHC245PWRG4 have 3-state outputs? Yes, it has 3-state outputs for bus driving or signal isolation.
- What is the latch-up performance of the SN74AHC245PWRG4? The latch-up performance exceeds 250mA per JESD 17.
