Alternatives to Texas Instruments SN74HCT240N
Texas Instruments SN74HCT240N and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for Texas Instruments SN74HCT240N
 SN74HCT240NTexas Instruments | CD74HCT240ETexas Instruments | SN74HC240NTexas Instruments | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Both parts use the 20-pin PDIP (0.300", 7.62mm) footprint with identical pin assignments (only differing in indexing nomenclature of 0-3 vs 1-4).Both devices share the same physical 20-PDIP dimensions and plastic through-hole mounting.The CD74HCT240E operates on the exact same 4.5V to 5.5V supply voltage with TTL-compatible input levels and inverting 3-state output characteristics. | Both devices use the exact same 20-pin PDIP layout and signal-to-pin assignments.Both devices are standard 20-PDIP plastic packages with identical mechanical footprints.The HC series has CMOS-compatible input levels (which require higher logic high thresholds) compared to the HCT series TTL-compatible thresholds, though it supports a wider supply voltage range. | ||
 AI Summary | SN74HCT240N by Texas Instruments: Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-PDIP. | The CD74HCT240E is a direct parametric equivalent and drop-in replacement originating from the acquired Harris Semiconductor line. It features identical logical behavior, package footprint, and pinout while expanding the operating temperature range.
| The SN74HC240N is the high-speed CMOS equivalent of the target device. It is a drop-in physical replacement, but uses CMOS logic levels instead of TTL, meaning it requires higher input voltages to register a logical HIGH.
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| Lifecycle Status | Active | Unknown | Unknown | |
| Market Availability | In stock | Unknown | Unknown | |
| REACH | REACH | Unknown | Unknown | |
| RoHS | RoHS | Unknown | Unknown | |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 SN74HCT74NTexas Instruments | In stock | Active | 3Alternatives availableSee Alternatives |
| SN74HCT74ANTexas Instruments | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
| SN74HC14NTexas Instruments | In stock | Active | 6Alternatives availableSee Alternatives |
| SN74HC04NTexas Instruments | In stock | Active | 3Alternatives availableSee Alternatives |
 SN74LS240Nonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 SN74HCT244DWRTexas Instruments | In stock | Active | 7Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments SN74HCT240N is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.
The closest qualified second sources for the Texas Instruments SN74HCT240N are the CD74HCT240E (Texas Instruments) and the SN74HC240N (Texas Instruments), out of 5 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the SN74HCT240N are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The SN74HCT240N (Texas Instruments) is a part in the Logic category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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