CD74ACT175E Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74ACT175E is a quad D-type flip-flop with clear in a 16-pin PDIP package, operating at up to 144 MHz clock frequency with TTL-compatible inputs and CMOS outputs. Suitable for high-speed data latching, pipeline registers, and synchronous digital logic in industrial designs with worldwide availability.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74ACT175E Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7440(MOQ 25)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74ACT175E?
- Quad D flip-flop with master reset, clocking 4 bits simultaneously at up to 144 MHz for high-speed pipeline register applications
- ACT logic family with TTL-compatible inputs (VIH = 2.0 V) and CMOS 5 V outputs for mixed-logic interfacing
- 24 mA output sink current enabling direct LED indicator drive and bus driving without external buffers
What is CD74ACT175E used for?
The CD74ACT175E is used in high-speed digital systems as pipeline registers, data synchronization latches, and clock domain crossing buffers where TTL input compatibility with CMOS drive strength is required. Its 144 MHz maximum clock rate makes it suitable for register stages in DSP data paths operating at 100 MHz bus frequencies. The 16-pin PDIP package supports through-hole prototyping and repair-friendly industrial equipment designs.
What are the specifications of CD74ACT175E?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | ACT |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 144000000Hz |
| Max I(ol) | 0.024A |
| Number of Bits | 4 |
| Number of Functions | 4 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 11.5ns |
| Propagation Delay (tpd) | 11.5ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 114MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Where can I find the CD74ACT175E datasheet?
CD74ACT175E Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74ACT175E?
Compatible alternatives and drop-in replacements for CD74ACT175E:
D Flip-Flop, ACT Series, 4-Func, Positive Edge Triggered, 4-Bit, Complementary Output, CMOS, PDIP16
Frequently Asked Questions
What maximum clock frequency does the CD74ACT175E support and how does the ACT family compare to HC in speed?
The CD74ACT175E supports a maximum clock frequency of 144 MHz with a 50 pF load at 5 V. The ACT family is approximately 3 times faster than HC logic, which typically reaches 45–50 MHz under the same conditions. This speed advantage makes CD74ACT175E suitable for 100 MHz bus data latching, video signal synchronization, and high-speed state machine implementations where HC flip-flops cannot meet timing requirements.
How does the TTL-compatible input threshold of CD74ACT175E enable interfacing with mixed 5 V TTL and CMOS systems?
The CD74ACT175E has TTL-compatible input thresholds with VIH minimum of 2.0 V and VIL maximum of 0.8 V, matching standard 74LS and 74F TTL output swing levels. This allows direct connection to TTL bus drivers without pull-up resistors or level translators. The CMOS output swings rail-to-rail to 5 V logic high, providing noise margin compatible with downstream CMOS gates in mixed-technology PCBs.
For what applications does the 24 mA output sink capability of CD74ACT175E eliminate external driver circuits?
The CD74ACT175E sinks up to 24 mA per output pin, sufficient to drive standard 5 mm LEDs with a 150 Ω series resistor at 5 V without an external transistor driver. In industrial status indicator panels or panel-mount alarm outputs, all 4 flip-flop outputs can simultaneously drive 4 LEDs at 20 mA each. This reduces component count by eliminating 4 discrete transistors or a buffer IC like 74HC244.
How does the synchronous clear function in CD74ACT175E differ from asynchronous clear in 74HC74, and when is each preferred?
The CD74ACT175E has an active-low asynchronous master reset (MR) that clears all 4 flip-flops immediately regardless of clock state, unlike synchronous clear which only acts on the next rising clock edge. Asynchronous clear is preferred for power-on initialization circuits where the system must reach a known state within nanoseconds before the first clock arrives. Synchronous clear is preferred in safety-critical pipelines where unexpected mid-cycle state changes could corrupt data integrity.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $1.2700 | $31.75 |
| 1000+ | $0.9960 | $996.00 |
| 3000+ | $0.9750 | $2925.00 |
| 5000+ | $0.9480 | $4740.00 |
| 10000+ | $0.8880 | $8880.00 |
| 100000+ | $0.7440 | $74400.00 |
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