Overview
The CD74HC374M96E4 is a high-speed CMOS logic octal D-type flip-flop produced by Texas Instruments. This device is part of the HC and HCT series, known for their high noise immunity and low power consumption. The CD74HC374M96E4 features eight edge-triggered flip-flops with 3-state outputs, making it suitable for a variety of digital logic applications. The device operates over a wide temperature range and can drive multiple LSTTL loads, enhancing its versatility in different circuit designs.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC Supply Voltage | 2 | 6 | V | ||
| VIH High Level Input Voltage | VCC = 5 V | 3.15 | 4.2 | V | |
| VIL Low Level Input Voltage | VCC = 5 V | 1.35 | 1.8 | V | |
| VOH High Level Output Voltage | IOH = -20 μA, VCC = 5 V | 4.4 | V | ||
| VOL Low Level Output Voltage | IOL = 20 μA, VCC = 5 V | 0.1 | V | ||
| fMAX Maximum Clock Frequency | VCC = 5 V | 25 | 30 | MHz | |
| tPLH Propagation Delay Clock to Output | CL = 50 pF, VCC = 5 V | 33 | 41 | 50 | ns |
| tSU Setup Time Data to Clock | VCC = 5 V | 12 | 15 | 18 | ns |
| tH Hold Time Data to Clock | VCC = 5 V | 5 | ns |
Key Features
- Buffered inputs
- Common three-state output enable control
- Three-state outputs
- Bus line driving capability
- Typical propagation delay (clock to Q) = 15 ns at VCC = 5 V, CL = 15 pF, TA = 25℃
- Fanout (over temperature range): Standard outputs - 10 LSTTL loads, Bus driver outputs - 15 LSTTL loads
- Wide operating temperature range: –55℃ to 125℃
- Balanced propagation delay and transition times
- Significant power reduction compared to LSTTL Logic ICs
- HC types: 2-V to 6-V operation, High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5 V
- HCT types: 4.5-V to 5.5-V Operation, Direct LSTTL input logic compatibility
Applications
- Digital logic circuits requiring edge-triggered flip-flops
- Bus-oriented systems where three-state outputs are necessary
- High-speed data storage and retrieval applications
- Clock distribution and synchronization in digital systems
- General-purpose digital logic in various electronic devices
Q & A
- What is the typical propagation delay of the CD74HC374M96E4?
The typical propagation delay (clock to Q) is 15 ns at VCC = 5 V, CL = 15 pF, and TA = 25℃.
- What is the operating voltage range for the CD74HC374M96E4?
The device operates over a voltage range of 2 V to 6 V for HC types and 4.5 V to 5.5 V for HCT types.
- How many LSTTL loads can the CD74HC374M96E4 drive?
The device can drive up to 10 LSTTL loads for standard outputs and up to 15 LSTTL loads for bus driver outputs.
- What is the maximum clock frequency for the CD74HC374M96E4?
The maximum clock frequency is 30 MHz at VCC = 5 V.
- What is the setup time for data to clock for the CD74HC374M96E4?
The setup time for data to clock is 12 ns to 18 ns at VCC = 5 V.
- What is the hold time for data to clock for the CD74HC374M96E4?
The hold time for data to clock is 5 ns.
- What are the key features of the three-state output enable control?
The three-state output enable control allows the outputs to be in a high-impedance state when OE is HIGH, and it is independent of the register operation.
- What are the typical applications of the CD74HC374M96E4?
The device is typically used in digital logic circuits, bus-oriented systems, high-speed data storage, clock distribution, and general-purpose digital logic.
- What is the operating temperature range of the CD74HC374M96E4?
The device operates over a temperature range of –55℃ to 125℃.
- How does the CD74HC374M96E4 reduce power consumption compared to LSTTL Logic ICs?
The device significantly reduces power consumption compared to LSTTL Logic ICs due to its CMOS technology.
