Overview
The 74HC393D is a high-speed CMOS 4-bit binary counter produced by Toshiba Semiconductor and Storage. It is fabricated using silicon gate C2MOS technology, which allows for high-speed operation similar to LSTTL while maintaining the low power dissipation characteristic of CMOS devices. This integrated circuit contains two independent counter circuits, enabling counting or frequency division of up to eight binary bits with a single IC. The counter changes state on the negative-going transition of the clock pulse and can be reset to '0' by a high signal at the CLR input, regardless of other inputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 2.0 to 6.0 | V |
| Maximum Clock Frequency | 72 MHz (typ.) at VCC = 5 V | MHz |
| Power Dissipation | 4.0 µA (max) at Ta = 25 °C | µA |
| Propagation Delay Time (CK-QA) | 19 to 95 ns | ns |
| Propagation Delay Time (CLR-Qn) | 38 to 110 ns | ns |
| Input Capacitance | 10 pF | pF |
| Operating Temperature Range | -40 to 125 °C | °C |
| Package Type | SOIC14 (SOT108-1) | |
| Mounting Type | Surface Mount | |
| Logic Type | Binary Counter | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Wide operating temperature range: -40 to 125 °C
- High speed: up to 72 MHz (typ.) at VCC = 5 V
- Low power dissipation: ICC = 4.0 µA (max) at Ta = 25 °C
- Balanced propagation delays: tPLH ≈ tPHL
- Wide operating voltage range: VCC(opr) = 2.0 V to 6.0 V
- High noise immunity
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V
- Two independent 4-bit binary counters with individual clocks and master resets
Applications
The 74HC393D is versatile and can be used in various applications, including:
- Frequency division and counting circuits
- Automotive and industrial control systems
- Consumer electronics and mobile devices
- Computing and power management systems
- Any application requiring high-speed binary counting or frequency division
Q & A
- What is the 74HC393D?
The 74HC393D is a high-speed CMOS 4-bit binary counter IC produced by Toshiba Semiconductor and Storage. - What is the operating voltage range of the 74HC393D?
The operating voltage range is from 2.0 V to 6.0 V. - What is the maximum clock frequency of the 74HC393D?
The maximum clock frequency is 72 MHz (typ.) at VCC = 5 V. - How does the counter reset?
The counter can be reset to '0' by a high signal at the CLR input, regardless of other inputs. - What is the operating temperature range of the 74HC393D?
The operating temperature range is from -40 to 125 °C. - What type of package does the 74HC393D come in?
The 74HC393D comes in a SOIC14 (SOT108-1) package. - Is the 74HC393D RoHS compliant?
Yes, the 74HC393D is lead free and RoHS compliant. - What is the propagation delay time for the 74HC393D?
The propagation delay time ranges from 19 to 95 ns depending on the conditions. - Does the 74HC393D have ESD protection?
Yes, it has ESD protection with HBM exceeding 2000 V and CDM exceeding 1000 V. - How many independent counters are in the 74HC393D?
The 74HC393D contains two independent 4-bit binary counters.
