CD74ACT109ME4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
CD74ACT109ME4 is a dual positive-edge-triggered J-K flip-flop with individual set and reset controls in a 16-pin SOIC package, operating at up to 100 MHz clock frequency with 24 mA output sink current. The ACT-family logic is compatible with both CMOS and TTL signal levels for high-speed digital sequencing applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74ACT109ME4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6966(MOQ 720)
- 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 CD74ACT109ME4?
- Dual positive-edge-triggered J-K flip-flops in a single 16-pin package
- Maximum clock frequency 100 MHz for high-speed sequential logic
- Individual asynchronous set and reset on each flip-flop
- 24 mA output sink current per channel at 50 pF load
- ACT-family logic with TTL-compatible inputs and CMOS outputs
- 16-pin SOIC surface-mount package for compact board designs
- AEC-Q100 automotive grade E4 qualification
- 5 V supply operation with wide noise margin
What is CD74ACT109ME4 used for?
CD74ACT109ME4 is used in digital counter, shift register, and state-machine circuits within microprocessor-based systems requiring high-speed clocking up to 100 MHz. Its dual-flip-flop configuration with independent set/reset enables frequency division, handshaking protocols, and edge-detect logic in industrial control and communication interface cards. The E4 automotive qualification makes it suitable for body control modules and infotainment systems where reliable sequential logic is required over the -40°C to +125°C temperature range.
What are the specifications of CD74ACT109ME4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | ACT |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | J-KBAR FLIP-FLOP |
| Max Frequency@Nom-Sup | 100000000Hz |
| Max I(ol) | 0.024A |
| Number of Bits | 2 |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 11.1ns |
| Propagation Delay (tpd) | 10.3ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 100MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Where can I find the CD74ACT109ME4 datasheet?
CD74ACT109ME4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74ACT109ME4?
Compatible alternatives and drop-in replacements for CD74ACT109ME4:
J-Kbar Flip-Flop, ACT Series, 2-Func, Positive Edge Triggered, 2-Bit, Complementary Output, CMOS, PDSO16
Frequently Asked Questions
At what maximum clock frequency can CD74ACT109ME4 operate reliably?
CD74ACT109ME4 supports clock frequencies up to 100 MHz, making it suitable for high-speed digital state machines and frequency dividers in 5 V logic systems. This speed advantage over standard CMOS flip-flops is provided by the ACT BiCMOS process, which also delivers 24 mA output sink current at 50 pF load capacitance.
How does the J-K flip-flop topology in CD74ACT109ME4 differ from a D-type flip-flop for counter circuit designs?
The J-K flip-flop has two independent data inputs (J and K) plus asynchronous set and reset pins, enabling toggle, hold, set, and clear modes without glue logic, compared to a D flip-flop's single data input. In CD74ACT109ME4, this versatility allows a single 16-pin package to implement a 2-bit synchronous counter or divide-by-N circuit clocked at up to 100 MHz.
Can CD74ACT109ME4 interface directly with 3.3 V microcontroller GPIO outputs driving TTL-level signals?
Yes, the ACT family accepts TTL-compatible input levels, so a 3.3 V GPIO output that swings between 0 V and 3.3 V satisfies the logic thresholds of CD74ACT109ME4 operating from a 5 V supply. The 24 mA output drive then allows the flip-flop to fan out to multiple 5 V TTL or CMOS loads at 50 pF each.
What package and pin count does CD74ACT109ME4 use, and is it suitable for automated PCB assembly?
The device is housed in a 16-pin SOIC (Small Outline IC) surface-mount package with a 1.27 mm lead pitch, making it fully compatible with standard pick-and-place and reflow soldering assembly processes. The SOIC-16 footprint is a widely available and low-cost format used throughout industrial and automotive PCB designs.
Is CD74ACT109ME4 qualified for automotive use, and what temperature range does it cover?
Yes, the E4 suffix denotes AEC-Q100 Grade 1 automotive qualification with an operating range of -40°C to +125°C. This rating ensures reliable sequential logic operation in automotive body control modules, motor control state machines, and infotainment bus arbitration circuits exposed to wide thermal excursions.
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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 |
|---|---|---|
| 720+ | $0.6966 | $501.55 |
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