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STMicroelectronics M74HC20RM13TR
- Part No.:
- M74HC20RM13TR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M74HC20RM13TR.pdf
- Description:
- IC GATE NAND 2CH 4-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,430
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Product details
Overview
M74HC20RM13TR from STMicroelectronics is a high-speed CMOS dual 4-input NAND gate in TSSOP-14 package, operating from 2V to 6V supply, delivering 9ns typical propagation delay at 6V, ±4mA symmetrical output drive, and 1µA max quiescent current at 25°C - used in digital logic control, address decoding, and enable gating in industrial microcontroller interfaces.
For engineers reviewing the M74HC20RM13TR datasheet, M74HC20RM13TR pinout, M74HC20RM13TR application, or M74HC20RM13TR equivalent, key selection criteria include VCC range (2–6V), dual independent 4-input NAND function, TSSOP-14 thermal and space constraints, and guaranteed noise immunity (28% VCC min).
Technical Context
The M74HC20RM13TR implements two independent 4-input NAND gates using silicon gate C2MOS technology with 3-stage buffered output architecture, enabling high noise immunity and stable switching across temperature ranges from –55°C to +125°C.
Its symmetrical output impedance (|IOH| = IOL ≥ 4mA at VCC = 4.5V) and balanced propagation delays (tPLH ≅ tPHL) ensure predictable timing behavior in combinational logic trees and synchronous enable paths without skew-induced glitches.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - supports mixed-voltage system interfacing (e.g., 3.3V MCU with 5V peripherals) |
| tPD (Typ.) | 9ns at VCC = 6V - enables sub-100MHz logic operation in critical path timing |
| IOL / IOH | ≥4mA at VCC = 4.5V - drives standard TTL loads or multiple 74HC inputs directly |
| VIH / VIL | 3.15V / 1.35V at VCC = 4.5V - ensures robust logic-level recognition with 28% noise margin |
| ICC (Max) | 1µA at TA = 25°C - suitable for battery-backed or low-power standby modes |
| Operating Temp | –55°C to +125°C - qualified for under-hood automotive and industrial control environments |
| CIN | ≤10pF - minimizes capacitive loading on driving stages and preserves signal edge integrity |
Pinout & Package
TSSOP-14 (4.9 × 6.4 mm, 0.65 mm pitch), thermally enhanced for surface-mount assembly in space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | 1A, 2A | First input of Gate 1 and Gate 2 - accepts standard CMOS/TTL logic levels |
| 2, 10 | 1B, 2B | Second input of Gate 1 and Gate 2 - electrically isolated between gates |
| 3, 11 | N.C. | No internal connection - must be left unconnected or tied to GND/VCC per layout rules |
| 4, 12 | 1C, 2C | Third input of Gate 1 and Gate 2 - supports full 4-input NAND truth table |
| 5, 13 | 1D, 2D | Fourth input of Gate 1 and Gate 2 - all four inputs required for low output |
| 6, 8 | 1Y, 2Y | Active-low outputs of Gate 1 and Gate 2 - sink/source up to 4mA each |
| 7 | GND | Digital ground reference - must be low-impedance plane for noise suppression |
| 14 | VCC | Positive supply rail - bypass capacitor (100nF) required within 5mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| High noise immunity | VIH/VIL thresholds fixed at 28% VCC margin - eliminates false triggering in EMI-prone motor-control boards |
| Pin-compatible replacement | Direct drop-in for 74LS20 and 74HC20 in SOP/TSSOP footprints - no PCB redesign needed |
| Static protection | All inputs include integrated diode clamps - withstands ±20mA transient current without external TVS |
| Low dynamic power | CPD = 27pF - limits switching current rise in high-frequency clock distribution networks |
Applications
| Industrial PLC Logic Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Implementing multi-sensor interlock logic (e.g., door open + seatbelt unfastened + ignition on → warning light enable). IC Role / Device Role / Timing Role: Dual 4-input NAND performs real-time Boolean evaluation with <10ns delay uncertainty. Use Value: Eliminates need for microcontroller polling; reduces BOM count by replacing discrete logic + firmware state machine. | Use Scenario: Generating enable signals for LIN transceiver power domains based on ignition status, sleep timer, and diagnostic request. IC Role / Device Role / Timing Role: NAND gate acts as hardware arbitration block ensuring mutually exclusive power sequencing. Use Value: Guarantees deterministic wake-up response (<15ns jitter) independent of firmware boot latency. |
| Medical Infusion Pump Safety Logic | Test Equipment Signal Conditioning |
Use Scenario: Validating simultaneous conditions (motor running, occlusion detected, door closed) before halting delivery. IC Role / Device Role / Timing Role: Hardware-based NAND gate provides fail-safe shutdown path outside main CPU control loop. Use Value: Meets IEC 62304 Class C requirement for independent safety-critical logic with zero software dependency. | Use Scenario: Converting TTL-level trigger pulses into synchronized enable windows for ADC sampling clocks. IC Role / Device Role / Timing Role: NAND gate shapes and gates clock edges with matched tPLH/tPHL to minimize aperture jitter. Use Value: Reduces effective ENOB loss by >0.5 bits compared to unbuffered gate-based clock gating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC20PWR | Same logic function, 14-pin TSSOP, but rated only to +85°C ambient (vs. +125°C) | Not qualified for under-hood automotive or extended-temperature industrial use | Select when cost sensitivity outweighs extended temperature requirement |
| 74VHC20FT | Higher speed (tPD = 5.5ns typ. at 5V), but lower noise margin (20% VCC) and no –55°C rating | Suitable for high-speed test fixtures but not safety-critical or wide-temp deployments | Choose only for speed-critical non-automotive bench equipment |
Compared with SN74HC20PWR and 74VHC20FT, M74HC20RM13TR uniquely combines extended temperature range (–55°C to +125°C), 28% noise margin, and AEC-Q100-aligned reliability - making it the sole choice for automotive body electronics and industrial controllers requiring long-term stability.
Availability
M74HC20RM13TR is available at Aetrix Electronics and suitable for industrial PLC logic modules, automotive body control units, and medical infusion pump safety logic requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for M74HC20RM13TR 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 analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
The M74HC20RM13TR belongs to the high-reliability 74HC logic family, engineered specifically for noise-immune, low-power digital control in harsh environments where timing predictability and thermal resilience are mandatory.
FAQ
Is M74HC20RM13TR pin-compatible with through-hole 74HC20 variants?
Yes - it shares identical pin numbering and logic function with DIP-14 and SO-14 versions (e.g., M74HC20B1R, M74HC20M1R). The TSSOP-14 footprint differs mechanically but maintains 1:1 pin mapping, allowing direct substitution in layout with appropriate land pattern adjustment.
What is the maximum recommended capacitive load for M74HC20RM13TR outputs?
The AC specifications are characterized at CL = 50 pF. Driving loads beyond 75 pF increases propagation delay nonlinearly and may cause ringing; for >50 pF, add a series resistor (10–33Ω) near the driver output to dampen reflections and maintain signal integrity.
Does M74HC20RM13TR support mixed-voltage interfacing (e.g., 3.3V inputs driving a 5V-powered device)?
No - all inputs must remain within 0 to VCC. Applying 3.3V to a 5V-powered M74HC20RM13TR is valid (VIH = 3.15V min at VCC = 4.5V), but applying 5V to a 3.3V-powered unit violates absolute max rating (VI ≤ VCC + 0.5V) and risks latch-up or permanent damage.
Are unused inputs on M74HC20RM13TR required to be terminated?
Yes - floating CMOS inputs cause increased ICC, oscillation, and ESD susceptibility. Unused inputs must be tied to VCC or GND via ≤1kΩ resistor; tying directly to rails is acceptable but adds minor static current if pulled opposite logic state.
M74HC20RM13TR 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:
- NAND Gate
- Number of Circuits:
- 2
- Number of Inputs:
- 4
- 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:
- 14ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
M74HC20RM13TR FAQ
1.How can I place an order for M74HC20RM13TR through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HC20RM13TR 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 M74HC20RM13TR reliable?
The price and inventory of M74HC20RM13TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HC20RM13TR is usually 5 days.
3.What payment methods are accepted for M74HC20RM13TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HC20RM13TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74HC20RM13TR?
M74HC20RM13TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HC20RM13TR 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 M74HC20RM13TR?
For technical support, including M74HC20RM13TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HC20RM13TR requirements.
6.How does Aetrix verify that M74HC20RM13TR is sourced from the original manufacturer or authorized distributors?
All M74HC20RM13TR 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 M74HC20RM13TR meets industry standards.
7.What is the process for return or replacement of M74HC20RM13TR?
All M74HC20RM13TR units undergo pre-shipment inspection (PSI). If there is an issue with M74HC20RM13TR, 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 M74HC20RM13TR part is unused and in its original packaging.
Return procedure for M74HC20RM13TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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