CD74HC4351M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
CD74HC4351M is an 8-channel analog multiplexer/demultiplexer with an integrated latch from Texas Instruments, operating from 2 V to 6 V supply and supporting 180 MHz analog bandwidth. It fits a 20-pin SOIC package and handles both single-ended and differential analog signals in high-speed data acquisition systems.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- CD74HC4351M Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6262(MOQ 1)
- 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 CD74HC4351M?
- 8-channel analog switching with 180 MHz bandwidth allows multiplexing of audio, RF, and video signals without significant signal degradation
- Integrated 3-bit address latch lets the host MCU set a channel and release the bus, reducing I/O pin requirements in dense embedded designs
- Wide 2 V to 10 V (VCC-VEE) supply range supports both single-supply 3.3 V/5 V and dual ±5 V split-supply analog front-end architectures
What is CD74HC4351M used for?
CD74HC4351M is used in data acquisition systems, audio routing matrices, and sensor multiplexing circuits where one ADC must sequentially sample 8 analog inputs. Its integrated address latch reduces the number of MCU GPIO pins required to select the active channel, which is beneficial in resource-constrained embedded controllers. The device also serves in analog test equipment and oscilloscope front-ends where multiple 50 Ω or high-impedance signal sources must be switched at high bandwidth.
What are the specifications of CD74HC4351M?
| Pbfree Code | Yes |
| YTEOL | 3.9 |
| Additional Feature | ALSO OPERATES AT 2V TO 10V (VCC-VEE) SUPPLY |
| Analog IC - Other Type | SINGLE-ENDED MULTIPLEXER |
| Bandwidth-Nom | 180MHz |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Neg Supply Voltage-Nom (Vsup) | -4.5 V |
| Normal Position | NC |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Off-state Isolation-Nom | 73dB |
| On-state Resistance Match-Nom | 10Ω |
| On-state Resistance-Max (Ron) | 240Ω |
| Output | COMMON OUTPUT |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Signal Current-Max | 0.025A |
| Supply Current-Max (Isup) | 0.08mA |
| Supply Voltage-Max (Vsup) | 10V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | YES |
| Switch-off Time-Max | 375ns |
| Switch-on Time-Max | 450ns |
| Switching | BREAK-BEFORE-MAKE |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the CD74HC4351M datasheet?
CD74HC4351M Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC4351M?
Compatible alternatives and drop-in replacements for CD74HC4351M:
Frequently Asked Questions
What analog bandwidth does CD74HC4351M support, and which signal types can it switch without significant loss?
CD74HC4351M provides a nominal analog bandwidth of 180 MHz, making it suitable for switching audio signals up to 20 kHz, baseband IF signals, and video signals up to several tens of megahertz. The low on-resistance of the CMOS switch, typically around 70 Ω at 5 V supply, introduces minimal signal attenuation when driving high-impedance loads. For lower-frequency sensor or ADC multiplexing applications, the 180 MHz bandwidth provides a wide margin that ensures negligible frequency-dependent insertion loss across the entire measurement bandwidth.
How does the integrated address latch in CD74HC4351M simplify microcontroller interfacing?
The 3-bit address latch in CD74HC4351M stores the channel selection internally once the latch-enable (LE) pin is deasserted, freeing the 3 address pins for other MCU tasks after a channel is selected. Without a latch, the MCU must hold the 3 address lines steady for the entire duration of the analog measurement. With the latch, the MCU writes the 3-bit channel address, pulses LE, and can then repurpose those 3 GPIO pins or enter a low-power sleep state while the ADC conversion completes, reducing active CPU time and improving system throughput.
Can CD74HC4351M operate in a dual ±5 V split-supply system for bipolar analog signal routing?
Yes. CD74HC4351M supports a VCC-to-VEE supply range of 2 V to 10 V, which means it can be powered from a +5 V / -5 V split supply (10 V total swing). In this configuration the device passes bipolar analog signals in the -4.5 V to +4.5 V range, covering most op-amp output swings in precision instrumentation. The CMOS switches remain fully on across the entire analog input range within the supply rails, ensuring low distortion when routing differential or AC-coupled audio and measurement signals.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8850 | $0.89 |
| 69+ | $0.7375 | $50.89 |
| 100000+ | $0.6262 | $62620.00 |
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