CD4049
CD4049 is the I-CORE functional equivalent of CD4049B / HEF4049B: hex inverting buffer, SOP-16, 3–15 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 | CD4049 |
| Function | Hex Inverting Buffer |
| Package | SOP-16 |
| Order codes in stock | CD4049SA16.TR |
| Supply voltage | 3–15 V |
| Operating temperature | −40 to 125 °C |
| Replaces | CD4049B |
| HEF4049B | |
| 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 CD4049 replace CD4049B?
- CD4049 is I-CORE's functional equivalent of CD4049B, HEF4049B in the same SOP-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 CD4049?
- Supply: 3–15 V. Operating temperature: −40 to 125 °C. See the datasheet for full electrical characteristics.
- Is CD4049 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 CD4049-AX-LJ-D059EN (revision 2023-04-B1). The full datasheet PDF is linked above.
General description
The CD4049 provides six inverting buffers with high current output capability suitable for driving TTL or high capacitive loads. Since input voltages in excess of the buffers’ supply voltage are permitted, the buffers may also be used to convert logic levels of up to 15V to standard TTL levels. It operates over a recommended VDD power supply range of 3V to 15V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.
Key features
- Wide supply voltage range from 3V to 15V
- Accepts input voltages in excess of the supply voltage
- 5V, 10V, and 15V parametric ratings
- 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.
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