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onsemi MC74VHCT132ADT
- Part No.:
- MC74VHCT132ADT
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC74VHCT132ADT.pdf
- Description:
- IC GATE NAND
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Product details
Overview
MC74VHCT132ADT from ON Semiconductor is a quad 2-input NAND Schmitt trigger IC in TSSOP-14 package, designed for noise-immune signal conditioning in 5V TTL-compatible digital systems. It features 4.9ns typical propagation delay at VCC = 5V, ±25mA output drive, TTL-level inputs (VIL = 0.8V, VIH = 2.0V), full 5V CMOS output swing, and operates from 4.5V to 5.5V.
For engineers reviewing the MC74VHCT132ADT datasheet, pinout, applications, or equivalent options, key selection criteria include Schmitt-trigger hysteresis (VT+ = 2.0V, VT– = 0.5V at VCC = 4.5V), input tolerance up to 7V, power-down protection, and compatibility with mixed-voltage interfacing between 3.3V and 5V domains.
Technical Context
The MC74VHCT132ADT implements four independent Schmitt-trigger NAND gates using silicon-gate CMOS technology, achieving bipolar-equivalent speed while retaining CMOS low static power. Each gate has asymmetric hysteresis (VH = 0.40V typ at VCC = 4.5V) and buffered output stages for high noise immunity.
Its input structure tolerates voltages from –0.5V to +7.0V regardless of supply, enabling safe interfacing with overvoltage or hot-insertion scenarios. The device supports 5V-only operation per recommended conditions (VCC = 4.5–5.5V), with outputs fully compatible with TTL logic thresholds and capable of driving standard CMOS loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 4.9ns typical at VCC = 5V, CL = 15pF - enables reliable timing in high-speed 5V logic interfaces. |
| Hysteresis Voltage | 0.40V typical at VCC = 4.5V - provides robust noise rejection for slow-rising signals like mechanical switch inputs. |
| Input Thresholds | VT+ = 2.0V, VT– = 0.5V at VCC = 4.5V - ensures clean switching on noisy or slowly transitioning waveforms. |
| Output Drive | ±25mA per pin - sufficient to directly drive multiple TTL inputs or small capacitive loads without buffering. |
| Supply Range | 4.5V to 5.5V - strictly 5V-system optimized; not rated for 3.3V-only operation. |
| Input Voltage Range | –0.5V to +7.0V - allows safe connection to 3.3V systems or transient-prone lines without level-shifting circuitry. |
| Quiescent Current | 2µA max at TA = 25°C - enables ultra-low standby power in battery-backed or always-on monitoring circuits. |
Pinout & Package
MC74VHCT132ADT is housed in a 14-lead TSSOP package (Case 948G–01), 4.4mm wide, 0.65mm lead pitch, with exposed pad optional per manufacturer design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | Input A of NAND gate 1–4 | Schmitt-triggered input with hysteresis; accepts TTL/CMOS levels and tolerates up to 7V. |
| 2, 5, 10, 13 | Input B of NAND gate 1–4 | Identical Schmitt-trigger input behavior as Pin 1; dual-input NAND logic function per gate. |
| 3, 6, 8, 11 | Output Y of NAND gate 1–4 | Full-rail CMOS output (VOH ≥ 4.4V, VOL ≤ 0.1V at IOL = 50µA); drives TTL and CMOS loads. |
| 7 | GND | Ground reference for all logic and power domains; must be connected before VCC during power-up. |
| 14 | VCC | Positive supply (4.5–5.5V); powers internal logic and output buffers; decoupling capacitor required. |
Key Features
| Feature | Design Value |
|---|---|
| Quad Schmitt NAND Function | Four independent 2-input NAND gates with hysteresis - eliminates need for external RC networks in debouncing or waveform shaping. |
| TTL-Compatible Inputs | VIL = 0.8V / VIH = 2.0V - seamless integration into legacy 5V TTL systems without level translation. |
| 7V Input Tolerance | Inputs withstand –0.5V to +7.0V regardless of VCC - enables direct interface to 3.3V microcontrollers or noisy industrial sensors. |
| Power-Down Protection | Inputs remain protected when VCC = 0V - prevents latch-up or damage during hot insertion or partial power-down sequences. |
| High Noise Immunity | VOLP ≤ 0.8V (dynamic), balanced tPLH/tPHL - ensures stable output under EMI-rich environments like motor control or power supply feedback loops. |
Applications
| Switch Debouncing | Level Translation |
|---|---|
Use Scenario: Mechanical pushbutton or relay contact interfacing to a 5V microcontroller input requiring clean, bounce-free logic transitions. IC Role / Device Role / Timing Role: Schmitt-trigger NAND gate configured as inverter with hysteresis - converts slow, noisy contact closure into sharp, jitter-free digital edge. Use Value: Eliminates need for external RC filters or firmware debouncing; reduces BOM count and improves system reliability across temperature. | Use Scenario: Interfacing a 3.3V FPGA I/O bank to a 5V peripheral bus where bidirectional voltage translation is not required. IC Role / Device Role / Timing Role: Unidirectional level shifter - accepts 3.3V logic highs (≥2.0V) as valid VIH and delivers full 5V CMOS output swing. Use Value: Enables direct connection without active translators; leverages 7V input tolerance to prevent damage from overshoot or undershoot. |
| Noise-Immune Signal Conditioning | Slow-Rise Clock Distribution |
Use Scenario: Cleaning up analog-sourced or long-trace digital signals in industrial PLC input modules subject to EMI and ground bounce. IC Role / Device Role / Timing Role: Input buffer with hysteresis - rejects sub-threshold noise spikes while preserving intended logic transitions. Use Value: Improves system MTBF by preventing false triggering; specified VOLP ≤ 0.8V and VIHD ≥ 3.5V ensure margin against dynamic noise. | Use Scenario: Distributing a slow-rising oscillator signal (e.g., from crystal oscillator or RC network) to multiple synchronous logic blocks. IC Role / Device Role / Timing Role: Waveform squaring element - converts gradual analog-like edges into rail-to-rail digital clock edges with controlled rise/fall times. Use Value: Ensures deterministic setup/hold timing for downstream flip-flops; eliminates metastability risk from ambiguous input thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger NAND applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LV132APWR | Lower VCC range (2–5.5V); LV logic family; 3.3V-optimized; no 7V input tolerance. | Better suited for mixed-voltage 3.3V/5V systems where supply flexibility matters more than overvoltage robustness. | Select when operating below 4.5V or requiring wider supply range; avoid if interfacing to >5.5V sources. |
| 74HC132D,653 | Standard HC family; no TTL input compatibility; VIH = 3.15V min at VCC = 4.5V; no 7V input rating. | Requires clean 5V logic sources; unsuitable for direct TTL or overvoltage interfacing. | Select only in pure 5V CMOS designs with well-controlled inputs; verify VIH/VIL margins with actual source drivers. |
Compared with SN74LV132APWR and 74HC132D,653, the MC74VHCT132ADT uniquely combines TTL input compatibility, 7V input tolerance, and guaranteed 4.5–5.5V operation - making it the preferred choice for legacy 5V industrial control, sensor interface, and robust debouncing applications where signal integrity under stress is critical.
Availability
MC74VHCT132ADT is available at Aetrix Electronics and suitable for industrial control panels, sensor interface modules, and legacy 5V embedded systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for MC74VHCT132ADT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
ON Semiconductor is a global semiconductor manufacturer specializing in power management, analog, sensor, and logic solutions for automotive, industrial, and cloud infrastructure applications.
The VHCT logic family was designed specifically for TTL-to-CMOS bridging in 5V systems, emphasizing speed, noise immunity, and robust input protection - aligning precisely with the requirements of industrial automation and legacy equipment upgrades.
FAQ
What is the maximum input voltage the MC74VHCT132ADT can tolerate?
The MC74VHCT132ADT inputs tolerate voltages from –0.5V to +7.0V regardless of VCC level. This specification is absolute-rated and verified per ON Semiconductor's datasheet (Rev. 2, p.115). It enables safe interfacing with 3.3V systems, open-collector sources, or transient-prone lines without external clamping diodes - a key differentiator versus standard HC or HCT families.
Does the MC74VHCT132ADT support 3.3V-only operation?
No, the MC74VHCT132ADT does not support 3.3V-only operation. Its recommended operating VCC range is strictly 4.5V to 5.5V (per datasheet p.115). While inputs accept 3.3V logic levels due to TTL compatibility (VIH = 2.0V), the device itself requires a 5V supply to meet all AC/DC specifications including propagation delay, output drive, and hysteresis voltage.
Can the MC74VHCT132ADT be used as a line receiver for slow input signals?
Yes, the MC74VHCT132ADT is explicitly designed as a line receiver for slow input signals. Its Schmitt-trigger inputs provide hysteresis (VH = 0.40V typ), allowing clean threshold crossing even with input rise/fall times exceeding microseconds - as confirmed in the functional description (p.113) and Figure 5(a) of the datasheet. This makes it ideal for switch debouncing and long-cable signal reception.
What is the output drive capability of the MC74VHCT132ADT?
The MC74VHCT132ADT provides ±25mA DC output current per pin (per Absolute Maximum Ratings table, p.115). At VCC = 5V and IOL = 8mA, VOL is guaranteed ≤ 0.44V; at IOH = –8mA, VOH is guaranteed ≥ 3.66V. This drive strength supports fan-out to multiple TTL loads or moderate capacitive loads without external buffers.
Is the MC74VHCT132ADT pin-compatible with the standard MC74VHC00?
Yes, the MC74VHCT132ADT pin configuration and basic gate function match the MC74VHC00 quad NAND, but with Schmitt-trigger inputs instead of standard CMOS inputs. As stated on page 113: "Pin configuration and function are the same as the MC74VHC00, but the inputs have hysteresis." This allows drop-in replacement in layouts where noise immunity or slow-edge handling is added post-design.
MC74VHCT132ADT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
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- Supplier Device Package:
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MC74VHCT132ADT FAQ
1.How can I place an order for MC74VHCT132ADT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHCT132ADT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC74VHCT132ADT reliable?
The price and inventory of MC74VHCT132ADT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHCT132ADT is usually 5 days.
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Once your MC74VHCT132ADT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC74VHCT132ADT?
For technical support, including MC74VHCT132ADT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHCT132ADT requirements.
6.How does Aetrix verify that MC74VHCT132ADT is sourced from the original manufacturer or authorized distributors?
All MC74VHCT132ADT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC74VHCT132ADT meets industry standards.
7.What is the process for return or replacement of MC74VHCT132ADT?
All MC74VHCT132ADT units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHCT132ADT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC74VHCT132ADT part is unused and in its original packaging.
Return procedure for MC74VHCT132ADT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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