CD74HCT112EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74HCT112EE4 is a dual JK-type flip-flop IC with negative-edge triggering, operating at up to 20 MHz from a 5 V supply. It features two independent JK flip-flop elements in a 16-pin PDIP package with 50 pF load capacitance and 4 mA output sink current. RoHS-compliant and available from stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HCT112EE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual JK flip-flop with negative-edge triggering for reliable synchronous logic design at up to 20 MHz
- HCT family compatibility bridging TTL and CMOS logic levels at 5 V supply
- 16-pin PDIP package enables easy breadboard prototyping and through-hole assembly
- Independent asynchronous preset and clear inputs on each flip-flop element for flexible initialization
Applications
The CD74HCT112EE4 is well suited for digital sequencing, state machine design, and frequency division circuits operating at 5 V. Its TTL-compatible HCT logic family makes it ideal for mixed TTL/CMOS systems where level shifting is required. Common applications include counters, registers, and clock synchronization circuits in industrial control and embedded systems.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | HCT |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | J-K FLIP-FLOP |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.004A |
| Number of Bits | 2 |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Prop. Delay@Nom-Sup | 53ns |
| Propagation Delay (tpd) | 53ns |
| 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 |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Trigger Type | NEGATIVE EDGE |
| fmax-Min | 20MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum operating frequency of CD74HCT112EE4 and at what supply voltage?
The CD74HCT112EE4 operates at a maximum frequency of 20 MHz when powered from a 5 V supply with a 50 pF load capacitance. This makes it suitable for moderate-speed digital logic and synchronous counter designs in 5 V systems.
How does the HCT logic family of CD74HCT112EE4 benefit mixed TTL/CMOS designs?
The HCT family operates at 5 V and accepts TTL-level input thresholds, allowing CD74HCT112EE4 to interface directly between TTL and CMOS logic without external level translators. The output sink current is 4 mA, ensuring compatibility with standard TTL loads.
Which package does CD74HCT112EE4 use and what are its physical assembly advantages?
CD74HCT112EE4 comes in a 16-pin PDIP (Dual-In-Line) package with 2.54 mm pitch, making it easy to insert into breadboards and standard DIP sockets during prototyping. Through-hole mounting provides robust mechanical strength for industrial applications.
When would you choose CD74HCT112EE4 over an edge-triggered D flip-flop in a state machine design?
CD74HCT112EE4 is preferred when independent J and K inputs are needed for conditional toggling or holding of state without external logic gates. Its negative-edge triggering and dual-element arrangement allow 2 independent state bits to be managed in a single 16-pin package at 5 V.
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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.
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