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STMicroelectronics M74HC32RM13TR
- Part No.:
- M74HC32RM13TR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M74HC32RM13TR.pdf
- Description:
- IC GATE OR 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,521
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Product details
Overview
M74HC32RM13TR from STMicroelectronics is a high-speed CMOS quad 2-input OR gate in TSSOP-14 package, operating from 2V to 6V supply, with typical propagation delay of 8ns at 6V, symmetrical output drive (±4mA), and high noise immunity (28% VCC). It serves as a logic-level combinatorial gate in industrial control signal routing.
For engineers reviewing the M74HC32RM13TR datasheet, M74HC32RM13TR pinout, M74HC32RM13TR application, or M74HC32RM13TR equivalent, key selection factors include its rail-to-rail input/output voltage compatibility, guaranteed 4mA output drive at 4.5V/6V, -55°C to +125°C operating range, and TSSOP-14 footprint for space-constrained PCB layouts.
Technical Context
This device implements four independent 2-input OR logic functions using silicon gate C2MOS technology, with buffered outputs enabling stable switching and high noise rejection. Each gate features identical AC/DC electrical characteristics across temperature ranges and supply voltages.
The internal two-stage structure includes input protection diodes and output buffers, supporting robust operation under transient conditions. Input thresholds are fixed at 30% (VIL) and 70% (VIH) of VCC, ensuring predictable logic transition behavior across the full 2–6V operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - supports single-supply operation across 3.3V and 5V logic systems |
| tPD (Typ.) | 8ns at VCC = 6V - enables sub-10ns combinational logic timing in high-speed digital interfaces |
| IOL / IOH | ±4mA min. - drives standard TTL loads and multiple 74HC inputs without fanout limitation |
| VIH / VIL | 3.15V / 1.35V at VCC = 4.5V - ensures reliable logic level recognition with margin against noise |
| Operating Temp | -55°C to +125°C - qualified for extended industrial and automotive under-hood environments |
| ICC (Max) | 1µA at TA = 25°C - ultra-low quiescent current suitable for battery-backed or always-on logic |
| Input Cap | 5pF max. - minimizes capacitive loading on driving stages and preserves signal edge integrity |
Pinout & Package
TSSOP-14 (Thin Shrink Small Outline Package), 4.9 × 6.4 mm body, 0.65 mm pitch, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | 1A, 2A, 3A, 4A | First input of each OR gate - accepts standard CMOS/TTL logic levels |
| 2, 5, 10, 13 | 1B, 2B, 3B, 4B | Second input of each OR gate - electrically identical to A inputs |
| 3, 6, 8, 11 | 1Y, 2Y, 3Y, 4Y | OR output per gate - rail-to-rail swing, ±4mA drive capability |
| 7 | GND | Digital ground reference - must be low-impedance connection to minimize switching noise |
| 14 | VCC | Positive supply - decoupling capacitor (100nF) required within 5mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| Symmetrical output impedance | |IOH| = IOL ≥ 4mA - eliminates skew between rising/falling edges in timing-critical paths |
| Balanced propagation delays | tPLH ≅ tPHL - ensures consistent pulse width preservation across all four gates |
| High noise immunity | VNIH = VNIL = 28% VCC min. - rejects >1.2V noise spikes on 4.5V supply |
| ESD protection | Input diodes rated ±20mA - withstands human-body-model (HBM) ESD events up to 2kV |
| Wide voltage operation | 2V–6V - interoperable with both 3.3V microcontrollers and legacy 5V peripherals |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Combining multiple sensor fault signals into a single OR-ed alert line for centralized diagnostics. IC Role / Device Role / Timing Role: Combinatorial logic gate aggregating discrete status bits with deterministic <10ns latency. Use Value: Eliminates need for software polling; hardware-level fault detection reduces MCU interrupt load and improves response time. | Use Scenario: Merging door-open, trunk-open, and hood-open switch signals to trigger interior lighting activation. IC Role / Device Role / Timing Role: Level-sensitive OR function with rail-to-rail output compatible with 5V lamp driver inputs. Use Value: Enables direct interface to 5V analog switches without level-shifting, reducing BOM count and layout area. |
| Medical Infusion Pump Logic | POS Terminal Power Sequencing |
Use Scenario: OR-ing multiple safety interlock signals (door, pressure, occlusion) before enabling motor drive enable path. IC Role / Device Role / Timing Role: Fail-safe combinatorial gate with -55°C to +125°C qualification for sterilization and ambient operation. Use Value: Meets IEC 62304 Class C requirement for hardware-based redundancy; no firmware dependency for critical path. | Use Scenario: Generating main power-on signal by OR-ing USB host presence, battery OK, and AC adapter detect signals. IC Role / Device Role / Timing Role: Supply-voltage-flexible logic element supporting mixed 3.3V/5V subsystem detection. Use Value: Simplifies power sequencing architecture by replacing discrete diode-OR with controlled, low-leakage CMOS logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC32PW | TSSOP-14, same logic function, but TI-spec ICC = 2µA max. at 25°C vs. ST's 1µA | Qualified to AEC-Q100 Grade 2 (-40°C to +105°C), not Grade 1 (-40°C to +125°C) | Prefer when automotive qualification to Grade 2 suffices and TI supply chain preference applies |
| 74VHC32FT | TSSOP-14, higher speed (tPD = 5.5ns typ. at 5V), but VCC max = 5.5V only | Not rated for 6V operation or -55°C storage; unsuitable for wide-temp industrial use | Choose only for 3.3V/5V systems requiring sub-6ns propagation and where 6V tolerance is unnecessary |
Compared with SN74HC32PW and 74VHC32FT, M74HC32RM13TR offers the widest temperature range (-55°C to +125°C), lowest quiescent current (1µA), and full 6V operation - making it optimal for harsh-environment industrial and extended-range automotive designs where reliability trumps marginal speed gain.
Availability
M74HC32RM13TR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump logic, and POS terminal power sequencing requiring stable component supply over long production lifecycles.
Supply support for M74HC32RM13TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power management ICs, sensors, and discrete components for industrial, automotive, and consumer markets.
M74HC32RM13TR belongs to the M74HC high-speed CMOS logic family, engineered for low-power, high-noise-immunity digital interfacing in extended-temperature industrial and automotive applications.
FAQ
Is M74HC32RM13TR pin-compatible with standard 74LS32?
No. While functionally equivalent as a quad 2-input OR gate, M74HC32RM13TR uses CMOS input thresholds (VIH ≈ 3.15V at 4.5V) versus TTL thresholds (VIH ≈ 2.0V) of 74LS32. Direct replacement requires verifying input voltage compatibility and may need pull-up resistors on open-collector sources.
What is the maximum recommended trace length for clock-like signals routed to M74HC32RM13TR inputs?
For input rise/fall times ≤400ns (at VCC = 6V), traces should be kept under 10 cm with controlled impedance (50Ω) and proper termination if exceeding 5 cm. Capacitive loading must stay below 15pF total (including CIN = 5pF) to maintain specified tPLH/tPHL performance.
Does M74HC32RM13TR support partial power-down (VCC = 0V while inputs active)?
No. Absolute maximum ratings specify VI must remain within -0.5V to VCC + 0.5V. With VCC = 0V, any input above 0.5V violates the -0.5V to +0.5V limit and risks activating internal parasitic diodes, causing excessive current or latch-up. Inputs must be held low during VCC ramp-down.
Can M74HC32RM13TR drive a 50pF load at 10MHz without waveform degradation?
Yes. With CL = 50pF and VCC = 4.5V, tPLH/tPHL remains ≤19ns and output transition time ≤22ns, yielding rise/fall times well under 10% of a 10MHz period (100ns). Measured VOH/VOL remain within spec, confirming clean 10MHz square-wave propagation with margin.
M74HC32RM13TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- OR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Input Logic Level - Low:
- 0.5V ~ 1.8V
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 13ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
M74HC32RM13TR FAQ
1.How can I place an order for M74HC32RM13TR through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HC32RM13TR 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 M74HC32RM13TR reliable?
The price and inventory of M74HC32RM13TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HC32RM13TR is usually 5 days.
3.What payment methods are accepted for M74HC32RM13TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HC32RM13TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74HC32RM13TR?
M74HC32RM13TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HC32RM13TR 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 M74HC32RM13TR?
For technical support, including M74HC32RM13TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HC32RM13TR requirements.
6.How does Aetrix verify that M74HC32RM13TR is sourced from the original manufacturer or authorized distributors?
All M74HC32RM13TR 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 M74HC32RM13TR meets industry standards.
7.What is the process for return or replacement of M74HC32RM13TR?
All M74HC32RM13TR units undergo pre-shipment inspection (PSI). If there is an issue with M74HC32RM13TR, 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 M74HC32RM13TR part is unused and in its original packaging.
Return procedure for M74HC32RM13TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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