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STMicroelectronics M74HC27RM13TR
- Part No.:
- M74HC27RM13TR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M74HC27RM13TR.pdf
- Description:
- IC GATE NOR 3CH 3-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,015
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Product details
Overview
M74HC27RM13TR from STMicroelectronics is a high-speed CMOS triple 3-input NOR gate in TSSOP-14 package, operating from 2V to 6V supply, with typical propagation delay of 9ns at 6V, symmetrical output drive (±4mA), and guaranteed high noise immunity (28% VCC). It serves as a logic-level combinatorial gate in industrial control sequencers requiring fast, low-power discrete logic functions.
For engineers reviewing the M74HC27RM13TR datasheet, M74HC27RM13TR pinout, M74HC27RM13TR application, or M74HC27RM13TR equivalent, key selection criteria include verified 3-input NOR functionality, TSSOP-14 footprint compatibility, rail-to-rail input/output voltage tolerance, -55°C to +125°C operating range, and quiescent current ≤1µA at 25°C.
Technical Context
The device implements three independent 3-input NOR gates using silicon gate C2MOS technology, each with buffered output stages to ensure stable switching and high noise margin. Input protection circuits guard against ESD and transient overvoltage, supporting robust operation in noisy industrial environments.
Propagation delays are balanced (tPLH ≅ tPHL), and output impedance is symmetrical (|IOH| = IOL ≥ 4mA), enabling predictable timing behavior in synchronous logic trees and state-machine feedback paths without skew-induced glitches.
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.) | 9ns at VCC = 6V - enables sub-100MHz combinational logic paths in timing-critical designs |
| IOL / IOH | ≥4mA - drives standard TTL/CMOS loads without external buffering |
| VNIH / VNIL | ≥28% VCC - rejects common-mode noise up to ±1.68V at 6V supply |
| ICC (Max) | 1µA at TA = 25°C - suitable for battery-backed or ultra-low-power standby logic |
| Operating Temp | -55°C to +125°C - qualified for extended industrial and automotive under-hood applications |
| Input Capacitance | 5pF - minimizes loading on preceding drivers and reduces dynamic power |
Pinout & Package
TSSOP-14 (Thin Shrink Small Outline Package), 4.9 × 6.4 mm body, 0.65 mm pitch, 14-pin surface-mount, moisture sensitivity level 1 (MSL1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 9 | 1A, 2A, 3A | First input of each NOR gate - accepts 0–VCC logic levels with ±20µA leakage |
| 2, 4, 10 | 1B, 2B, 3B | Second input of each NOR gate - electrically identical to A inputs, no internal differentiation |
| 5, 11, 13 | 1C, 2C, 3C | Third input of each NOR gate - fully compatible with standard 74-series input thresholds |
| 6, 8, 12 | 1Y, 2Y, 3Y | Active-low NOR outputs - sink/source ≥4mA, VOL ≤0.26V at 4mA (VCC=4.5V) |
| 7 | GND | Logic ground reference - must be connected directly to system ground plane |
| 14 | VCC | Positive supply - bypassing with 100nF ceramic capacitor required within 5mm |
Key Features
| Feature | Design Value |
|---|---|
| Triple 3-input NOR function | Three independent gates in one package - reduces board space vs. discrete gate ICs or SOT-23 arrays |
| Pin-compatible with 74-series 27 | Direct drop-in replacement for legacy 74LS27/74F27 in upgrade paths without layout change |
| High noise immunity | VIH/VIL thresholds fixed at 28% VCC - eliminates marginal switching near VCC/2 in noisy environments |
| Buffered output stage | Internal driver buffers isolate input logic from capacitive load variations - ensures consistent tPLH/tPHL across load conditions |
| ESD-protected inputs | Withstands ≥2kV HBM - eliminates need for external TVS diodes in moderate ESD zones |
Applications
| Industrial PLC Input Decoding | Automotive Body Control Module Logic |
|---|---|
Use Scenario: Decoding multiple sensor status signals (door open, seatbelt latch, ignition state) into a single enable line for interior lighting activation. IC Role / Device Role / Timing Role: Combinatorial NOR gate performing real-time 3-signal OR-NOT logic before latching. Use Value: Eliminates microcontroller GPIO overhead and provides deterministic <9ns response to safety-critical inputs. | Use Scenario: Generating fault-lockout signals when any two of three redundant CAN transceiver error flags are asserted. IC Role / Device Role / Timing Role: Hardware-level fault arbitration block operating outside MCU firmware control loop. Use Value: Ensures fail-safe behavior even during MCU reset or software hang, meeting ASIL-B timing constraints. |
| Test Equipment Signal Gating | Legacy System Bus Interface Logic |
Use Scenario: Enabling/disabling analog multiplexer channels based on simultaneous trigger, calibration, and enable signals. IC Role / Device Role / Timing Role: Synchronous gating element synchronizing signal routing with test sequence state machine. Use Value: Provides sub-10ns setup/hold margin for 100MHz sampling clocks without FPGA logic resource usage. | Use Scenario: Adapting 5V TTL bus handshaking signals (RDY, WAIT, BUSY) to modern 3.3V microcontroller GPIOs. IC Role / Device Role / Timing Role: Level-shifting logic translator preserving original 74-series timing relationships. Use Value: Maintains backward compatibility with legacy ISA/PC-104 timing budgets while reducing system power by 60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple 3-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC27DR | Same logic function, SOIC-14 package, 2kV HBM ESD rating vs. 4kV for M74HC27RM13TR | Larger footprint; less suitable for dense PCB layouts where TSSOP-14 saves >30% area | Select when board reworkability or wave-solder compatibility is prioritized over miniaturization |
| 74AHC27PW,118 | Higher speed (tPD = 5.2ns typ. at 5V), lower ICC (0.1µA max), but narrower VCC range (2–5.5V) | Not rated for 6V operation - invalid for 6V industrial sensors or legacy 5V+ systems | Select only in new 3.3V/5V designs requiring maximum speed and lowest static power |
Compared with SN74HC27DR and 74AHC27PW,118, the M74HC27RM13TR uniquely balances 6V tolerance, TSSOP-14 miniaturization, and industrial temperature support - making it optimal for retrofitting legacy 5V systems into space-constrained, wide-voltage industrial enclosures.
Availability
M74HC27RM13TR is available at Aetrix Electronics and suitable for industrial PLC input decoding, automotive body control modules, test equipment signal gating, and legacy system bus interface logic requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for M74HC27RM13TR 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 industrial, automotive, and consumer applications.
The M74HC27 belongs to ST's high-speed CMOS logic family, engineered specifically for pin-compatible upgrades of legacy 74-series devices while delivering lower power, wider voltage range, and enhanced noise immunity in industrial control and instrumentation.
FAQ
Is M74HC27RM13TR compatible with 5V TTL logic inputs?
Yes. Its VIH and VIL thresholds (e.g., 3.15V/1.35V at VCC = 4.5V) exceed standard TTL input requirements, and it accepts input voltages up to VCC + 0.5V. When powered at 5V, it reliably interfaces with 74LS and 74F series outputs without level shifters.
What is the maximum capacitive load this device can drive reliably?
At VCC = 4.5V and TA = 25°C, the device maintains VOL ≤ 0.26V while sourcing/sinking 4mA. With CL = 50pF (per AC specs), it supports typical PCB trace + input capacitance loads up to ~75pF while staying within 10% timing degradation - verified via propagation delay measurements in the datasheet.
Does this part require external pull-up or pull-down resistors on unused inputs?
No. Unused inputs must be tied to VCC or GND to prevent floating states and increased ICC. The datasheet explicitly prohibits leaving inputs unconnected due to potential shoot-through current and undefined output states - internal protection diodes do not eliminate this requirement.
Can M74HC27RM13TR operate at 2.0V and still meet its specified propagation delay?
Yes. At VCC = 2.0V, tPLH/tPHL is specified as 30–115ns (max) over temperature. While slower than the 9ns typical at 6V, it remains fully functional and meets all DC and AC specs in the 2–6V range - validated across -55°C to +125°C per Recommended Operating Conditions table.
M74HC27RM13TR 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:
- NOR Gate
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- 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
M74HC27RM13TR FAQ
1.How can I place an order for M74HC27RM13TR through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HC27RM13TR 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 M74HC27RM13TR reliable?
The price and inventory of M74HC27RM13TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HC27RM13TR is usually 5 days.
3.What payment methods are accepted for M74HC27RM13TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HC27RM13TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74HC27RM13TR?
M74HC27RM13TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HC27RM13TR 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 M74HC27RM13TR?
For technical support, including M74HC27RM13TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HC27RM13TR requirements.
6.How does Aetrix verify that M74HC27RM13TR is sourced from the original manufacturer or authorized distributors?
All M74HC27RM13TR 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 M74HC27RM13TR meets industry standards.
7.What is the process for return or replacement of M74HC27RM13TR?
All M74HC27RM13TR units undergo pre-shipment inspection (PSI). If there is an issue with M74HC27RM13TR, 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 M74HC27RM13TR part is unused and in its original packaging.
Return procedure for M74HC27RM13TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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