CD74HC4020EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74HC4020EE4 is a high-speed CMOS 14-bit binary ripple up-counter from Texas Instruments with 12 accessible output stages and a reset input, housed in a 16-pin PDIP package. It operates in the HC/UH logic family with 50 pF load capacitance, making it suitable for long-cycle frequency division and timing delay circuits. Available in stock globally for embedded timing, clock divider, and event counter applications.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4020EE4 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
- 14-bit binary ripple up-counter with outputs available from 12 stages for flexible frequency division ratios
- Asynchronous reset input for fast counter initialization without waiting for clock cycles
- HC/UH high-speed CMOS logic family with 50 pF load capacitance for robust output drive
- 16-pin PDIP package (JESD-30 R-PDIP-T16) enabling straightforward through-hole PCB prototyping
- Pb-free RoHS-compliant construction (JESD-609 e4) meeting green manufacturing requirements
Applications
The CD74HC4020EE4 is widely used in clock frequency dividers, long-period timers, and oscillator sub-divider circuits in embedded systems, alarm clocks, and digital control panels. Its 14-bit depth allows division ratios up to 16,384, making it ideal for generating long time-base signals from crystal oscillators in low-power timing applications.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | OUTPUT FROM 12 STAGES AVAILABLE |
| Count Direction | UP |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Load/Preset Input | NO |
| Logic IC Type | BINARY COUNTER |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.0052A |
| Mode of Operation | ASYNCHRONOUS |
| Number of Bits | 14 |
| Number of Functions | 1 |
| 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 | 30ns |
| Propagation Delay (tpd) | 210ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| 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 | NEGATIVE EDGE |
| fmax-Min | 24MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC4020EE4:
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDIP16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 7-Bit, Up Direction, CMOS, PDIP14
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 12-Bit, Up Direction, CMOS, PDIP16
Frequently Asked Questions
How many output stages are accessible on the CD74HC4020EE4?
The CD74HC4020EE4 is a 14-bit binary counter but exposes outputs from 12 of the 14 stages on its 16-pin PDIP package. These outputs correspond to divide-by powers of 2 from Q3 to Q14, allowing division ratios from /8 to /16,384. The first two internal stages (Q1, Q2) are internal and not brought out to pins.
What is the reset behavior of the CD74HC4020EE4?
The CD74HC4020EE4 has an asynchronous reset pin (MR, master reset). When MR is taken HIGH, all counter outputs immediately reset to zero regardless of the clock state. This active-HIGH reset allows fast counter initialization, which is essential for synchronizing multiple counter chains or implementing watchdog timeout reset circuits.
What package is the CD74HC4020EE4 available in?
The CD74HC4020EE4 is available in a 16-pin PDIP (Plastic Dual-In-Line Package), JESD-30 code R-PDIP-T16. The PDIP is a through-hole package ideally suited for prototyping on breadboards and for production designs where through-hole soldering is preferred. It also supports socket mounting for easy replacement in maintenance-intensive applications.
What typical applications use the CD74HC4020EE4?
The CD74HC4020EE4 is used in crystal oscillator frequency division chains, long-period digital timers, real-time clock sub-dividers, and wake-up timer circuits for low-power microcontroller systems. The ability to divide a 32.768 kHz crystal to 1 Hz and below makes it a classic choice for digital clock and calendar timing base generation.
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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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