Overview
The CD74HCT564M is a high-speed CMOS logic integrated circuit produced by Texas Instruments. It is an Octal Positive-Edge-Triggered D-Type Inverting Flip-Flop with three-state outputs. This device is manufactured using silicon gate CMOS technology, which ensures low power consumption and high performance. The CD74HCT564M is designed to drive bus lines in bus-organized systems, making it ideal for applications requiring robust and reliable data transfer.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 20-SOIC (0.295", 7.50mm Width) | |
| Number of Elements | 1 | |
| Number of Bits per Element | 8 | |
| Clock Frequency | 50 MHz | |
| Max Propagation Delay @ V, Max CL | 14 ns @ 5V, 15pF | |
| Trigger Type | Positive Edge | |
| Current - Output High, Low | 6 mA, 6 mA | |
| Voltage - Supply | 4.5 V ~ 5.5 V | |
| Current - Quiescent (Iq) | 8 µA | |
| Input Capacitance | 10 pF | |
| Operating Temperature | -55°C ~ 125°C (TA) | |
| Mounting Type | Surface Mount |
Key Features
- Buffered inputs
- Common three-state output-enable control
- Three-state outputs
- Bus line driving capability
- Typical propagation delay = 13 ns at VCC= 5 V, CL= 15 pF, TA= 25℃ (clock to output)
- Fanout: 10 LSTTL loads (standard outputs), 15 LSTTL loads (bus driver outputs)
- Wide operating temperature range: –55℃ to 125℃
- Balanced propagation delay and transition times
- Significant power reduction compared to LSTTL Logic ICs
- Direct LSTTL input logic compatibility: VIL= 0.8 V (max), VIH= 2 V (min)
- CMOS input compatibility: I ≤ 1 µA at VOL, VOH
Applications
The CD74HCT564M is ideally suited for interfacing with bus lines in bus-organized systems. It is particularly useful in applications requiring high-speed data transfer, low power consumption, and robust output drive capability. Typical applications include:
- Bus-organized systems
- Data storage and retrieval systems
- High-speed digital circuits
- Embedded systems requiring low power consumption
Q & A
- What is the package type of the CD74HCT564M?
The CD74HCT564M comes in a 20-SOIC (0.295", 7.50mm Width) package.
- What is the maximum clock frequency of the CD74HCT564M?
The maximum clock frequency is 50 MHz.
- What is the propagation delay of the CD74HCT564M?
The typical propagation delay is 13 ns at VCC= 5 V, CL= 15 pF, TA= 25℃ (clock to output).
- What is the operating temperature range of the CD74HCT564M?
The operating temperature range is –55℃ to 125℃.
- What is the supply voltage range for the CD74HCT564M?
The supply voltage range is 4.5 V to 5.5 V.
- Does the CD74HCT564M have three-state outputs?
- What is the fanout capability of the CD74HCT564M?
The CD74HCT564M can drive up to 10 LSTTL loads (standard outputs) and up to 15 LSTTL loads (bus driver outputs).
- Is the CD74HCT564M compatible with LSTTL logic?
- What is the quiescent current of the CD74HCT564M?
The quiescent current (Iq) is 8 µA.
- What is the input capacitance of the CD74HCT564M?
The input capacitance is 10 pF.
