CD4051
CD4051 is the I-CORE functional equivalent of CD4051B / HEF4051B: 8-channel analog Multiplexer/Demultiplexer, TSSOP-16, 3–9 V, −40 to 125 °C. Factory-original stock in Shenzhen; free samples with shipping paid.
Key specifications
| Manufacturer | I-CORE (Wuxi I-CORE Electronics Co., Ltd.) |
|---|---|
| Part number | CD4051 |
| Function | 8-channel Analog Multiplexer/Demultiplexer |
| Package | TSSOP-16 |
| Order codes in stock | CD4051TA16.TR |
| Supply voltage | 3–9 V |
| Operating temperature | −40 to 125 °C |
| Replaces | CD4051B |
| HEF4051B | |
| Compliance | RoHS (EU 2011/65/EU + 2015/863) and REACH SVHC — third-party lab tested; reports on request |
| Datasheet | PDF, English |
Questions buyers ask
- Can CD4051 replace CD4051B?
- CD4051 is I-CORE's functional equivalent of CD4051B, HEF4051B in the same TSSOP-16 package. Standard parts in this family share the industry pinout, but please compare both datasheets — supply range, timing and absolute maximum ratings — before design-in.
- What is the supply voltage and temperature range of CD4051?
- Supply: 3–9 V. Operating temperature: −40 to 125 °C. See the datasheet for full electrical characteristics.
- Is CD4051 in stock, and can I get a free sample?
- Yes, it is held in stock in Shenzhen. Free samples are available for evaluation, with shipping paid by us. For production orders, SMD parts can be ordered from 1 pc and DIP parts ship in full tubes; orders ship within 2–3 business days after payment.
- Is it original I-CORE product?
- Yes. We supply factory-original I-CORE (Wuxi I-CORE Electronics) parts in sealed reels and tubes. Our ISO 9001, ISO 14001 and ISO 45001 certificates are shown on the home page; RoHS and REACH test reports are available on request.
Datasheet highlights
From the I-CORE English datasheet CD4051-AX-LJ-D009EN (revision 2025-07-B2). The full datasheet PDF is linked above.
General description
The CD4051 is an 8-channel analog multiplexer/demultiplexer with three address inputs (S1 to S3), an active LOW enable input (E), eight independent inputs/outputs (Y0 to Y7) and a common input/output (Z). The device contains eight bidirectional analog switches, each with one side connected to an independent input/output (Y0 to Y7) and the other side connected to a common input/output (Z). With E LOW, one of the eight switches is selected (low-impedance ON-state) by S1 to S3. With E HIGH, all switches are in the high-impedance OFF-state, independent of S1 to S3. If break before make is needed, then it is necessary to use the enable input. VDD and VSS are the supply voltage connections for the digital control inputs (S1 to S3, and E). The VDD to VSS range is 3V to 9V.
Key features
- Wide supply voltage range from 3V to 9V
- Fully static operation
- 5V and 9V parametric ratings
- Standardized symmetrical output characteristics
- Specified from -40℃ to +125℃
Request a quote
We reply within 1 business day. Free samples — shipping on us. Tell us the part number, quantity and your application.