CD74HC157EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
CD74HC157EE4 is a quad 2-input multiplexer HC CMOS logic IC by Texas Instruments. Key specs: 2 V to 6 V supply, 4 independent 2-input MUX channels, 16-pin DIP. From $0.30 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC157EE4 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 CD74HC157EE4?
- 4 independent 2-input multiplexer channels in a single 16-pin DIP package, reducing component count in data bus selection circuits
- HC CMOS technology delivers propagation delay under 15 ns at 5 V with typical output source/sink current of 5.2 mA, enabling high-speed logic designs
- Wide supply range of 2 V to 6 V ensures compatibility with both 3.3 V and 5 V logic systems without additional level translation
- 50 pF load capacitance rating and CMOS rail-to-rail output levels support long PCB trace driving in industrial and consumer digital designs
What is CD74HC157EE4 used for?
The CD74HC157EE4 is commonly used in data bus multiplexing, address line selection, and signal routing circuits where one of two 4-bit data sources must be selected based on a single control input. It suits applications such as memory bank switching, keyboard matrix scanning, and embedded controller I/O expansion on boards where DIP packages are preferred for ease of prototyping or field replacement. The HC-speed CMOS family also makes it compatible with FPGA GPIO interfaces and microcontroller data buses running at 3.3 V or 5 V.
What are the specifications of CD74HC157EE4?
| YTEOL | 0 |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MULTIPLEXER |
| Max I(ol) | 0.0052A |
| Number of Bits | 2 |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Number of Outputs | 1 |
| Output Polarity | TRUE |
| 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) | 0.16mA |
| Prop. Delay@Nom-Sup | 10ns |
| Propagation Delay (tpd) | 190ns |
| 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 |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| 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 |
Where can I find the CD74HC157EE4 datasheet?
CD74HC157EE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC157EE4?
Compatible alternatives and drop-in replacements for CD74HC157EE4:
Multiplexer, HC/UH Series, 4-Func, 2 Line Input, 1 Line Output, True Output, CMOS, PDIP16
Frequently Asked Questions
How many data channels does the CD74HC157EE4 provide and how are they organized?
The CD74HC157EE4 contains 4 independent 2-input multiplexer channels in a single package, each selecting between one of two 1-bit data inputs based on a shared select control line. This quad configuration allows an entire 4-bit data word to be switched between two sources simultaneously, making it highly efficient for 4-bit bus selection in memory controllers, address decoders, and logic design projects that must choose between two data paths.
What propagation delay and output current can the CD74HC157EE4 deliver in a 5 V logic system?
In a 5 V supply circuit with a 50 pF load capacitance, the CD74HC157EE4 typically achieves a propagation delay of under 15 ns, placing it in the HC (High-speed CMOS) performance tier. Its maximum output low-level sink current is 5.2 mA, and the corresponding source current mirrors that level, sufficient to drive standard CMOS or TTL-compatible inputs on moderately loaded data buses without additional buffering.
Can the CD74HC157EE4 be used in a 3.3 V system alongside 5 V TTL logic components?
Yes, the CD74HC157EE4 supports supply voltages from 2 V to 6 V, so it can operate at 3.3 V in modern systems. However, when mixing it with 5 V TTL components, the inputs should not exceed the supply voltage plus 0.5 V, so direct connection to 5 V TTL outputs in a 3.3 V powered system requires a level shifter. At 5 V, it is fully TTL input-compatible and drives standard HC or TTL loads without issue.
In what package is the CD74HC157EE4 available, and why is that package choice relevant for legacy PCB repairs?
The CD74HC157EE4 is packaged in a 16-pin PDIP (Plastic Dual In-Line Package) with 2.54 mm pin pitch, making it drop-in compatible with standard DIP-16 IC sockets. This through-hole format is directly usable in breadboards and legacy PCBs manufactured before surface-mount technology became dominant. For field repairs of older industrial equipment, PLCs, or test instruments, DIP packages can be replaced with standard desoldering tools without specialized SMD rework stations.
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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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