Overview
The M74HC125RM13TR is a high-speed CMOS quad bus buffer with 3-state outputs, manufactured by STMicroelectronics. This device is fabricated using silicon gate C2MOS technology and is designed to provide low power dissipation and high noise immunity. It features four independent buffers, each with a 3-state output that can be placed in a high impedance state using the output enable input. The M74HC125RM13TR is pin and function compatible with the 74 series 125 and is suitable for a wide range of digital signal applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | -0.5 to +7 | V |
| DC Input Voltage (VI) | -0.5 to VCC + 0.5 | V |
| DC Output Voltage (VO) | -0.5 to VCC + 0.5 | V |
| Propagation Delay Time (tPLH, tPHL) | 8ns (Typ.) at VCC = 6V | ns |
| High Impedance Output Enable Time (tPZL, tPZH) | 36ns (Typ.) at VCC = 6V | ns |
| High Impedance Output Disable Time (tPLZ, tPHZ) | 48ns (Typ.) at VCC = 6V | ns |
| Operating Temperature Range (TA) | -40 to +85°C | °C |
| Maximum Power Dissipation (ICC) | 4μA (Max.) at TA=25°C | μA |
| Output Current (IOH, IOL) | 6mA (Min.) | mA |
Key Features
- High speed with propagation delay times as low as 8ns at VCC = 6V.
- Low power dissipation with ICC = 4μA (Max.) at TA=25°C.
- High noise immunity with VNIH = VNIL = 28% VCC (Min.).
- Symmetrical output impedance with |IOH| = IOL = 6mA (Min.).
- Wide operating voltage range: VCC (OPR) = 2V to 6V.
- Pin and function compatible with 74 series 125.
- All inputs equipped with protection circuits against static discharge and transient excess voltage.
Applications
- Digital signal buffering and isolation.
- Bus systems where 3-state outputs are required.
- Low power digital circuits.
- High-speed digital logic applications.
- Systems requiring high noise immunity.
Q & A
- What is the M74HC125RM13TR? The M74HC125RM13TR is a high-speed CMOS quad bus buffer with 3-state outputs manufactured by STMicroelectronics.
- What is the operating voltage range of the M74HC125RM13TR? The operating voltage range is from 2V to 6V.
- What is the propagation delay time of the M74HC125RM13TR? The propagation delay time is as low as 8ns at VCC = 6V.
- How much power does the M74HC125RM13TR dissipate? The maximum power dissipation is 4μA at TA=25°C.
- What is the output current capability of the M74HC125RM13TR? The output current capability is |IOH| = IOL = 6mA (Min.).
- Is the M74HC125RM13TR protected against static discharge? Yes, all inputs are equipped with protection circuits against static discharge and transient excess voltage.
- What are the typical applications of the M74HC125RM13TR? Typical applications include digital signal buffering, bus systems, low power digital circuits, and high-speed digital logic applications.
- What is the temperature range for the M74HC125RM13TR? The operating temperature range is from -40°C to +85°C.
- Is the M74HC125RM13TR still in production? No, the M74HC125RM13TR is obsolete and no longer manufactured.
- What are the substitutes for the M74HC125RM13TR? Direct substitutes are available, but specific part numbers should be checked with the manufacturer or distributor.
