Texas Instruments 74HCT | Texas Instruments
74HCT series from Texas Instruments
Texas Instruments 74HCT Series Overview
TTL-compatible CMOS logic with 5V fixed supply and TTL-level input thresholds.
The 74HCT from Texas Instruments is a TTL-compatible CMOS logic with 5V fixed supply and TTL-level input thresholds. This series includes 94 variants, each tailored for specific application requirements while sharing a common architecture and design ecosystem.
As part of the High-Speed CMOS Logic (TTL-Compatible) family, these devices provide industry-standard pinouts and well-characterized electrical specifications, enabling straightforward integration into new designs and drop-in replacement in existing systems. Operating from 4.5V to 5.5V supply rails, the 74HCT devices deliver consistent performance across the full operating temperature range.
Octatronics stocks 74HCT variants in multiple package options. Request a quote for volume pricing, check real-time availability, or contact our engineering team for application support and alternative part recommendations.
Key Features
- 4.5V to 5.5V Supply Voltage RangeOperates from 4.5V to 5.5V supply rails for broad system compatibility and flexible power-rail design.
- Industry-Standard PinoutsDrop-in compatible with standard logic family pinouts, simplifying board layout and enabling multi-source procurement.
- Propagation delay ~12ns Switching PerformancePropagation delay ~12ns enable reliable operation in high-frequency digital systems.
- Low Quiescent PowerCMOS technology ensures minimal static power consumption, extending battery life in portable applications.
- Wide Temperature RangeQualified for commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges for diverse deployment environments.
Target Applications
- Mixed TTL/CMOS systems
- Legacy system upgrades
- Industrial automation
- Consumer electronics
Compare 74HCT Variants
Side-by-side comparison of 10 product variants from Texas Instruments
| Parameter | CD74HCT4053PWRE4 | CD74HCT368E | CD74HCT193E | SN74HCT74NG4 | SN74HCT74PWT | SN74HCT74PW | SN74HCT74N | SN74HCT74DT | SN74HCT74DRG4 | SN74HCT74DE4 |
|---|---|---|---|---|---|---|---|---|---|---|
| Package / Case | - | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) | 14-TSSOP (0.173", 4.40mm Width) | 14-TSSOP (0.173", 4.40mm Width) | 14-DIP (0.300", 7.62mm) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) |
| Max Frequency | - | - | - | 46 MHz | 46 MHz | 46 MHz | 46 MHz | 46 MHz | 46 MHz | 46 MHz |
| Operating Temperature | - | -55°C ~ 125°C (TA) | -55°C ~ 125°C | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Current Output High Low | - | 4mA, 4mA | - | 4mA, 4mA | 4mA, 4mA | 4mA, 4mA | 4mA, 4mA | 4mA, 4mA | 4mA, 4mA | 4mA, 4mA |
| Current Quiescent Iq | - | - | - | 4 µA | 4 µA | 4 µA | 4 µA | 4 µA | 4 µA | 4 µA |
| Function | - | - | - | Set(Preset) and Reset | Set(Preset) and Reset | Set(Preset) and Reset | Set(Preset) and Reset | Set(Preset) and Reset | Set(Preset) and Reset | - |
| Input Capacitance | - | - | - | 3 pF | 3 pF | 3 pF | 3 pF | 3 pF | 3 pF | 3 pF |
| Max Propagation Delay V Max Cl | - | - | - | 25ns @ 5.5V, 50pF | 25ns @ 5.5V, 50pF | 25ns @ 5.5V, 50pF | 25ns @ 5.5V, 50pF | 25ns @ 5.5V, 50pF | 25ns @ 5.5V, 50pF | 25ns @ 5.5V, 50pF |
| Number of Bits Per Element | - | 2, 4 (Hex) | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of Elements | - | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Output Type | - | 3-State | - | Complementary | Complementary | Complementary | Complementary | Complementary | Complementary | Complementary |
| Supplier Device Package | - | 16-PDIP | 16-PDIP | 14-PDIP | 14-TSSOP | 14-TSSOP | 14-PDIP | 14-SOIC | 14-SOIC | 14-SOIC |
| Supply Voltage | - | 4.5V ~ 5.5V | 4.5 V ~ 5.5 V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Trigger Type | - | - | Positive Edge | Positive Edge | Positive Edge | Positive Edge | Positive Edge | Positive Edge | Positive Edge | Positive Edge |
| Type | - | - | - | D-Type | D-Type | D-Type | D-Type | D-Type | D-Type | D-Type |
| Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote |
Base Numbers
| Base Number | Description | Variants | Status | Action |
|---|---|---|---|---|
| 74HCT161 | 74HCT161 variants from Texas Instruments | 1 MPNs | Active | View Details |
| 74HCT240 | 74HCT240 variants from Texas Instruments | 1 MPNs | Active | View Details |
| 74HCT259 | 74HCT259 variants from Texas Instruments | 1 MPNs | Active | View Details |
| CD74HCT | Texas Instruments CD74HCT devices are 5 V high-speed CMOS logic parts with TTL-compatible inputs for gates, inverters, flip-flops, counters, and interface logic. | 150 MPNs | Active | View Details |
Technical Specifications
Compare key 74HCT specifications across available variants. All parameters are typical values at 25 degC unless otherwise noted.
Electrical Characteristics
Operating Conditions
Frequently Asked Questions
Common technical questions about the 74HCT series.