CD74HC4020E Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
CD74HC4020E is a 14-stage binary ripple up-counter IC from Texas Instruments in the HC CMOS logic family. Key specs: 2 V to 6 V supply, 12 stage outputs accessible, 16-pin PDIP package. From stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4020E 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-stage binary up-counter with 12 accessible output stages for flexible frequency division applications
- Wide 2 V to 6 V supply range compatible with both 3.3 V and 5 V CMOS logic systems
- 16-pin PDIP package enabling easy prototyping and breadboard-compatible through-hole assembly
Applications
CD74HC4020E is well suited for frequency division, event counting, and timer generation in embedded systems, clocks, and digital signal processing equipment. Its 14-stage ripple counter provides division ratios from 2 to 16384, making it useful for deriving sub-frequencies from oscillators in communication and instrumentation designs. The wide 2 V to 6 V supply range allows direct integration with battery-powered microcontroller systems and legacy 5 V logic boards.
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) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC4020E:
Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, CDIP16
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
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDIP16
Frequently Asked Questions
How many binary counter stages and accessible output pins does CD74HC4020E provide?
CD74HC4020E has 14 binary ripple counter stages, with 12 output stages directly accessible as device pins. The outputs provide division ratios from 2¹ to 2¹⁴ (up to 16384), enabling a wide range of frequency division and timing functions without requiring external decoding logic in clocking or sequencing circuits.
Over what supply voltage range does CD74HC4020E operate and how does it interface with 3.3 V systems?
CD74HC4020E operates from 2 V to 6 V, allowing direct use with 3.3 V microcontroller I/O as well as traditional 5 V CMOS and TTL systems. At 3.3 V the HC family guarantees valid logic output levels, and at 5 V it delivers higher noise margin and faster propagation, making it versatile across mixed-voltage prototype and production board designs.
What maximum clock input frequency can CD74HC4020E handle at 5 V supply?
At a 5 V supply with a 50 pF load capacitance, CD74HC4020E supports clock input frequencies up to approximately 24 MHz, sufficient for dividing standard oscillator frequencies in embedded timer and communication baud-rate generation circuits. Reducing supply voltage to 3.3 V lowers the maximum clock frequency proportionally, typically to around 16 MHz, which still covers most microcontroller clock divider applications.
When would a designer select CD74HC4020E over a programmable counter like a 74HC163 in a timing circuit?
A designer would choose CD74HC4020E when a fixed binary divide-by-N output is needed without programmable load or synchronous reset, simplifying the circuit to a single IC with no parallel load wiring. The 14-stage architecture provides up to 16384 counts per cycle, which is significantly more than the 74HC163's 4-bit (16-count) range, reducing total IC count in long-period timer designs using a 32.768 kHz crystal clock.
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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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