Part A
74HC14D,653
Nexperia USA Inc.
- Lifecycle
- Active
- Stock
- 3794 PCS
- Package
- SOIC-14
- Series
- Logique - portes et Onduleurs
Replacement verdict
Compatible functional replacement candidate
The 74HC14D,653 and 74HC132D,652 are both hex Schmitt-trigger devices in the same SO-14 package with identical supply voltage and temperature ranges, making them strong functional replacement candidates. However, the 74HC14D,653 provides inverting outputs while the 74HC132D,652 provides non-inverting outputs with integrated NAND gate logic, so the replacement is valid only when the surrounding circuit design accounts for this logic polarity difference.
Package Type
High match
Supply Voltage Range
High match
Output Logic Function
Not compatible
Propagation Delay
Validation required
Parts at a glance
Part B
74HC132D,652
NXP semiconducteurs
- Lifecycle
- Active
- Stock
- 4717 PCS
- Series
- Logique - portes et Onduleurs
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 74HC14D,653 | 74HC132D,652 | Why it matters |
|---|---|---|---|
| Logic Function | Hex Inverting Schmitt Trigger | Quad 2-Input NAND Schmitt Trigger | Defines the fundamental logic operation; these are not functionally interchangeable as the 74HC14 inverts a single input while the 74HC132 performs NAND on two inputs. |
| Number of Gates | 6 | 4 | Affects how many independent signal channels are available in a single package, impacting board layout and component count. |
| Number of Inputs per Gate | 1 | 2 | Determines the logic capability per gate; a 2-input NAND can implement functions not possible with a single-input inverter. |
| Output Logic Polarity | Inverting | Inverting (NAND) | Both invert, but the 74HC132 only inverts when both inputs are HIGH, changing the truth table and circuit behavior. |
| Schmitt Trigger Hysteresis | Yes | Yes | Hysteresis provides noise immunity and clean switching for slow or noisy input signals; both devices include this feature. |
| Supply Voltage Range | 2.0 V to 6.0 V | 2.0 V to 6.0 V | Defines compatible power rails; both support the standard HC family range for 3.3 V and 5 V systems. |
| Propagation Delay (typical at 5 V) | 13 ns | 14 ns | Influences maximum operating frequency and timing margins in high-speed digital circuits. |
| Output Drive Current | ±4 mA | ±4 mA | Determines fan-out and ability to drive loads such as LEDs or other logic inputs. |
| Package Type | SO14 (SOIC-14) | SO14 (SOIC-14) | Physical footprint and pin count must match for direct PCB replacement; both use the same 14-pin SOIC package. |
| Pin Count | 14 | 14 | Pin count affects package compatibility and PCB layout; identical pin count allows the same footprint but pin functions differ. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74HC14D,653 | 74HC132D,652 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Active |
| Series | 74HC | - |
| Logic Type | Inverter | - |
| Number of Circuits | 6 | - |
| Number of Inputs | 1 | - |
| Features | Schmitt Trigger | - |
| Voltage - Supply | 2V ~ 6V | - |
| Current - Quiescent (Max) | 2 µA | - |
| Current - Output High Low | 5.2mA, 5.2mA | - |
| Logic Level - Low | 0.3V ~ 1.2V | - |
| Logic Level - High | 1.5V ~ 4.2V | - |
| Max Propagation Delay @ V Max CL | 21ns @ 6V, 50pF | - |
| Operating Temperature | -40°C ~ 125°C | - |
| Mounting Type | Surface Mount | - |
Frequently asked questions
What are the main functional differences between the 74HC14D,653 and the 74HC132D,652?
The 74HC14D,653 contains six independent inverting Schmitt-trigger buffers, while the 74HC132D,652 contains four independent 2-input NAND Schmitt-trigger gates. Both provide hysteresis on their inputs, but the 74HC14D,653 inverts the signal and the 74HC132D,652 performs a NAND logic function with Schmitt-trigger inputs.
Are the 74HC14D,653 and 74HC132D,652 pin-compatible?
No. The 74HC14D,653 is a 14-pin SOIC device with six inverters, and the 74HC132D,652 is a 14-pin SOIC device with four 2-input NAND gates. Although both use the same 14-pin SOIC package, their internal gate functions and pin assignments differ, so they are not direct pin-for-pin substitutes.
Can the 74HC14D,653 be used as a drop-in replacement for the 74HC132D,652 in an existing design?
No. The 74HC14D,653 provides inverting Schmitt-trigger buffers, whereas the 74HC132D,652 provides 2-input NAND Schmitt-trigger gates. The logic function, input count, and pinout differ, so a direct replacement is not possible without redesigning the circuit and verifying timing, loading, and logic requirements.
What are the typical supply voltage and logic family specifications for both devices?
Both the 74HC14D,653 and 74HC132D,652 are HC-family CMOS devices typically specified for a supply voltage range of 2.0 V to 6.0 V, with standard 74HC input and output characteristics. Exact limits, propagation delays, and Schmitt-trigger threshold voltages should be confirmed from the respective manufacturer datasheets.
Do both devices provide Schmitt-trigger inputs with hysteresis?
Yes. The 74HC14D,653 and 74HC132D,652 both feature Schmitt-trigger inputs with hysteresis, which improves noise immunity and allows slow or noisy input signals to be cleaned up. The hysteresis behavior is a key characteristic of both parts, though the specific threshold voltages and hysteresis widths should be verified from the manufacturer datasheets.
Which device is better for debouncing a mechanical switch?
Both can be used for switch debouncing because both have Schmitt-trigger inputs. The 74HC14D,653 is often used as an inverting debouncer, while the 74HC132D,652 can be used where a NAND-based debounce or logic gating function is required. The choice depends on whether inversion or NAND logic is needed in the surrounding circuit.
What package and mounting type do the 74HC14D,653 and 74HC132D,652 use?
Both the 74HC14D,653 and 74HC132D,652 are typically offered in a 14-pin SOIC package for surface-mount assembly. The package code "D" in these part numbers generally indicates SOIC, and the suffix numbers reflect manufacturer-specific ordering or packing information. Always confirm the exact package drawing and land pattern from the manufacturer datasheet.
Are the 74HC14D,653 and 74HC132D,652 interchangeable in terms of logic function?
No. The 74HC14D,653 provides six inverters with Schmitt-trigger inputs, while the 74HC132D,652 provides four 2-input NAND gates with Schmitt-trigger inputs. They are not logic-function interchangeable, and any substitution requires a full review of the circuit's logic, pinout, and timing requirements.