CD74HC4520MG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC4520MG4 is a dual 4-bit binary up counter from Texas Instruments in the HC CMOS logic family, operating at up to 20 MHz with 50 pF load in a 16-pin SOIC package. It features synchronous reset and load capability with positive or negative edge triggering. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC4520MG4 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
What are the key features of CD74HC4520MG4?
- Dual independent 4-bit binary up counters in one 16-pin SOIC package, enabling 8-bit counting or two parallel 4-bit counters with minimal PCB area
- Maximum count frequency of 20 MHz at 50 pF load supports high-speed digital counting and frequency division applications
- Supports both positive and negative edge triggering with synchronous preset/load input for flexible integration into diverse digital system architectures
What is CD74HC4520MG4 used for?
The CD74HC4520MG4 is widely used in digital frequency dividers, event counters, and timer circuits in industrial control and consumer electronics. Its dual 4-bit structure allows cascading to form 8-bit or wider counters for pulse counting applications up to 20 MHz clock rates. The 16-pin SOIC package and HC CMOS logic family ensure compatibility with 2 V to 6 V supply systems used in microcontroller-based designs and FPGA peripheral circuits.
What are the specifications of CD74HC4520MG4?
| YTEOL | 0 |
| Additional Feature | NEGATIVE EDGE TRIGGER TYPE ALSO POSSIBLE |
| Count Direction | UP |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Load/Preset Input | YES |
| Logic IC Type | BINARY COUNTER |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.004A |
| Mode of Operation | SYNCHRONOUS |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 50mA |
| Prop. Delay@Nom-Sup | 72ns |
| Propagation Delay (tpd) | 360ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| 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 | 24MHz |
| 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 |
Where can I find the CD74HC4520MG4 datasheet?
CD74HC4520MG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC4520MG4?
Compatible alternatives and drop-in replacements for CD74HC4520MG4:
Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16
Frequently Asked Questions
How fast can the CD74HC4520MG4 count and what load capacitance is this rating based on?
The CD74HC4520MG4 can count at a maximum frequency of 20 MHz when driving a 50 pF load capacitance. This makes it suitable for dividing clock signals, counting encoder pulses, or frequency measurement in digital systems operating at standard CMOS logic levels from 2 V to 6 V.
Can CD74HC4520MG4 be cascaded to create an 8-bit counter and how is that achieved?
Yes, the two independent 4-bit counters in the CD74HC4520MG4 can be cascaded by connecting the carry output of the first counter to the clock input of the second, forming a single 8-bit counter. This cascaded configuration counts from 0 to 255 and operates at clock rates up to approximately 20 MHz, depending on propagation delay across both stages.
What edge triggering options does CD74HC4520MG4 support and how does this affect system design flexibility?
The CD74HC4520MG4 supports both positive edge and negative edge triggering through separate clock and enable inputs, allowing designers to choose the active clock edge without additional inverter logic. This dual-edge capability reduces external component count by at least 1 inverter per counter channel when interfacing with systems that use falling-edge clocking.
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Why Buy from FindMyChip
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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