Overview
The SN74HC393NE4, produced by Texas Instruments, is a dual 4-bit binary counter integrated circuit. This device is part of the 74HC series and is designed to provide two independent 4-bit binary counters in a single package. Each counter has its own clock input and a direct clear function, making it versatile for various counting applications. The SN74HC393NE4 operates over a wide voltage range of 2V to 6V, making it suitable for a variety of electronic systems.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage) | 2 | 5 | 6 | V |
| VIH (High-level Input Voltage) | 1.5 (VCC=2V), 3.15 (VCC=4.5V), 4.2 (VCC=6V) | - | - | V |
| VIL (Low-level Input Voltage) | 0.5 (VCC=2V), 1.35 (VCC=4.5V), 1.8 (VCC=6V) | - | - | V |
| ICC (Quiescent Current) | - | - | 80 | μA |
| fclock (Clock Frequency) | 6 (VCC=2V), 31 (VCC=4.5V), 36 (VCC=6V) | - | - | MHz |
| tw (Pulse Duration) | 80 (VCC=2V), 16 (VCC=4.5V), 14 (VCC=6V) | - | - | ns |
| tsu (Setup Time, CLR Inactive) | 25 (VCC=2V), 5 (VCC=4.5V and 6V) | - | - | ns |
| TA (Operating Free-Air Temperature) | -40 | - | 85 | °C |
Key Features
- Wide operating voltage range of 2V to 6V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption: 80μA max ICC
- Typical propagation delay time (tpd) of 13ns
- ±4mA output drive at 5V
- Low input current of 1μA max
- Dual 4-bit binary counters with individual clocks and direct clear for each counter
- Asynchronous reset
- Negative edge triggered
- Can significantly improve system densities by reducing counter package count by 50%
Applications
The SN74HC393NE4 is suitable for a variety of applications requiring binary counting, such as:
- Digital counters in electronic meters and displays
- Timing and sequencing circuits
- Frequency dividers
- Event counters in industrial control systems
- General-purpose counting in digital systems
Q & A
- What is the operating voltage range of the SN74HC393NE4?
The operating voltage range is from 2V to 6V.
- How many LSTTL loads can the outputs of the SN74HC393NE4 drive?
The outputs can drive up to 10 LSTTL loads.
- What is the maximum quiescent current (ICC) of the SN74HC393NE4?
The maximum quiescent current is 80μA.
- What is the typical propagation delay time (tpd) of the SN74HC393NE4?
The typical propagation delay time is 13ns.
- What is the clock frequency range of the SN74HC393NE4?
The clock frequency ranges from 6 MHz at 2V to 36 MHz at 6V.
- What is the trigger type of the SN74HC393NE4 counters?
The counters are negative edge triggered.
- Does the SN74HC393NE4 have asynchronous reset?
Yes, the SN74HC393NE4 has asynchronous reset for each 4-bit counter.
- What is the operating temperature range of the SN74HC393NE4?
The operating temperature range is from -40°C to 85°C.
- What package types are available for the SN74HC393NE4?
The SN74HC393NE4 is available in 14-pin PDIP, SOP, and other package types.
- Is the SN74HC393NE4 RoHS compliant?
Yes, the SN74HC393NE4 is RoHS compliant.
