74HC93 4-Bit Binary Ripple Counter
High-speed CMOS 4-bit binary ripple counter with asynchronous master reset
- Supply Voltage: 0.5 to +7.0V
- DC Input Diode Current: ±20 mA
- DC Output Diode Current: ±20 mA
- Output Current: ±25 mA
- DC VCC or GND Current, per pin: 50 mA
- Storage Temperature Range: -55°C to +150 °C
Top Features:
- Configurable to divide by 2, 8, and 16
- Asynchronous master reset
- Wide operating temperature range: -55°C to 125°C
- Significant power reduction compared to LSTTL logic ICs
The 74HC93 is a high-speed silicon-gate CMOS device that is pin-compatible with low power Schottky TTL. It consists of four master-slave flip-flops internally connected to provide a divide-by-two section and a divide-by-eight section.
Each section has a separate clock input (CP0 and CP1) for state changes, with the ability to operate in various counting modes. The device features a gated AND asynchronous master reset (MR1 and MR2) to override clocks and clear all flip-flops.
Simultaneous frequency divisions are available at the Q0, Q1, Q2, and Q3 outputs, allowing for versatile functionality as a 4-bit or 3-bit ripple counter. It offers balanced propagation delay, transition times, and high noise immunity.
The 74HC93 is designed for a supply voltage range of 2V to 6V operation for HC types and 4.5V to 5.5V for HCT types. It has various compatibility features with input logic, making it a versatile choice for different applications.
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