Overview
The CD74HC273M96 is a high-speed octal D-Type flip-flop integrated circuit manufactured by Texas Instruments. It is part of the HC and HCT series, known for their low power consumption and compatibility with CMOS and TTL logic. This device is fabricated using silicon-gate CMOS technology, ensuring low power consumption and high noise immunity. The CD74HC273M96 features eight D-Type flip-flops, each controlled by a common clock (CLK) and a common reset (CLR) input. Information at the D input is transferred to the Q outputs on the positive-going edge of the clock pulse, and resetting is accomplished by a low voltage level independent of the clock.
Key Specifications
| Parameter | HC Types | HCT Types |
|---|---|---|
| Operating Voltage Range | 2 V to 6 V | 4.5 V to 5.5 V |
| Maximum Clock Frequency | Up to 30 MHz (at VCC = 5 V) | Up to 25 MHz (at VCC = 5 V) |
| Propagation Delay (Clock to Output) | 26 ns to 38 ns (at VCC = 5 V, CL = 50 pF) | 30 ns to 38 ns (at VCC = 5 V, CL = 50 pF) |
| Propagation Delay (CLR to Output) | 26 ns to 38 ns (at VCC = 5 V, CL = 50 pF) | 32 ns to 40 ns (at VCC = 5 V, CL = 50 pF) |
| Set-up Time (Data to Clock) | 10 ns to 15 ns (at VCC = 5 V) | 10 ns to 15 ns (at VCC = 5 V) |
| Hold Time (Data to Clock) | 3 ns | 3 ns |
| CLR Pulse Width | 10 ns to 15 ns (at VCC = 5 V) | 10 ns to 15 ns (at VCC = 5 V) |
| Input Leakage Current | ±1 μA (at VCC = 5 V) | ±1 μA (at VCC = 5 V) |
| Quiescent Device Current | 8 μA to 160 μA (at VCC = 5 V) | 8 μA to 160 μA (at VCC = 5 V) |
| Operating Temperature Range | -55℃ to 125℃ | -55℃ to 125℃ |
| Package Type | SOIC (20 pins) | SOIC (20 pins) |
Key Features
- Common clock and asynchronous controller reset
- Positive edge triggering
- Buffered inputs
- Fanout capability: up to 10 LSTTL loads or 15 LSTTL loads for bus driver outputs
- Wide operating temperature range: -55℃ to 125℃
- Balanced propagation delay and transition times
- Significant power reduction compared to LSTTL logic ICs
- High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V for HC types
- Direct LSTTL input logic compatibility for HCT types: VIL = 0.8 V (max), VIH = 2 V (min)
Applications
- Digital counters and registers
- Data storage and transfer circuits
- Sequential logic circuits
- Timing and clocking circuits
- General-purpose digital logic applications where low power consumption and high noise immunity are required
Q & A
- What is the CD74HC273M96 used for?
The CD74HC273M96 is used in digital circuits as an octal D-Type flip-flop, suitable for applications such as digital counters, registers, and sequential logic circuits.
- What is the operating voltage range of the CD74HC273M96?
The operating voltage range for the HC types is 2 V to 6 V, and for the HCT types, it is 4.5 V to 5.5 V.
- What is the maximum clock frequency of the CD74HC273M96?
The maximum clock frequency is up to 30 MHz for HC types and up to 25 MHz for HCT types at VCC = 5 V.
- How many flip-flops does the CD74HC273M96 contain?
The device contains eight D-Type flip-flops.
- What is the propagation delay from clock to output?
The propagation delay from clock to output ranges from 26 ns to 38 ns for HC types and 30 ns to 38 ns for HCT types at VCC = 5 V and CL = 50 pF.
- What is the hold time for data to clock?
The hold time for data to clock is 3 ns.
- What is the input leakage current?
The input leakage current is ±1 μA at VCC = 5 V.
- What is the quiescent device current?
The quiescent device current ranges from 8 μA to 160 μA at VCC = 5 V.
- What is the operating temperature range of the CD74HC273M96?
The operating temperature range is -55℃ to 125℃.
- What package type is the CD74HC273M96 available in?
The CD74HC273M96 is available in a 20-pin SOIC package.
