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STMicroelectronics M74HC259YRM13TR
- Part No.:
- M74HC259YRM13TR
- Manufacturer:
- STMicroelectronics
- Category:
- Latches
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M74HC259YRM13TR.pdf
- Description:
- IC ADDRESSABLE LATCH 8BIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,495
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Product details
Overview
M74HC259YRM13TR from STMicroelectronics is an automotive-grade 8-bit addressable latch with 3-bit address decoding, single data input, active-low enable, and asynchronous clear. It operates from 2 V to 6 V, delivers 20 ns typical propagation delay at 6 V, supports ±4 mA output drive, and features AEC-Q100 qualified SO16 packaging for under-hood control modules.
For engineers reviewing the M74HC259YRM13TR datasheet, M74HC259YRM13TR pinout, M74HC259YRM13TR application, or M74HC259YRM13TR equivalent, key selection criteria include addressable latch behavior vs. 3-to-8 decoder mode, automotive temperature range (-40 °C to +125 °C), SO16 mechanical compatibility, and ESD robustness (HBM 1.5 kV).
Technical Context
The M74HC259YRM13TR implements dual-mode operation: when ENABLE is low, it latches data onto one of eight outputs selected by A/B/C address lines; when ENABLE is high and CLEAR is low, all outputs reset to logic low. Its C2MOS silicon gate process enables rail-to-rail input thresholds and symmetrical output drive.
Propagation delays are balanced (tPLH ≈ tPHL) across DATA→Q, ADDRESS→Q, ENABLE→Q, and CLEAR→Q paths, with worst-case tPHL/tPLH ≤ 48 ns at 6 V and -55 °C to +125 °C. Input hysteresis and 28 % VCC noise immunity ensure reliable operation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 2 V to 6 V - supports battery-backed 3.3 V and legacy 5 V logic systems without level shifters |
| tPD (typ.) | 20 ns at VCC = 6 V - enables reliable timing in 25 MHz address/data strobe cycles |
| IOL / IOH (min) | 4 mA - drives standard TTL loads or multiple 74HC inputs without fanout limitation |
| VNIH / VNIL (min) | 28 % VCC - rejects >1.68 V noise on 6 V rails, critical for engine control unit signal integrity |
| ICC (max) | 4 µA at TA = 25 °C - enables ultra-low static power in always-on vehicle subsystems |
| ESD HBM | 1.5 kV - meets automotive assembly line handling requirements per AEC-Q100 |
| Temperature Range | -40 °C to +125 °C - qualified for powertrain and body control module mounting locations |
Pinout & Package
Package: SO16 (Small Outline Integrated Circuit, 16-pin, 3.9 mm body width, 1.27 mm pitch), automotive-grade, ECOPACK® compliant, tape-and-reel packaging (M13TR).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 (A, B, C) | Address inputs | Select one of eight latch outputs; decoded internally with no external logic required |
| 4–7, 9–12 (Q0–Q7) | Latch outputs | Eight independent CMOS outputs retaining state until updated via address/enable sequence |
| 13 (D) | Data input | Single-bit serial data source routed to addressed latch on ENABLE falling edge |
| 14 (ENABLE) | Active-low latch enable | Low pulse captures D value into addressed latch; high state freezes all outputs |
| 15 (CLEAR) | Asynchronous clear | Low forces all Q outputs low regardless of ENABLE state; used for system reset |
| 8 (GND) | Ground reference | Return path for all internal logic and output currents; must be low-impedance |
| 16 (VCC) | Positive supply | Primary power rail; decoupling capacitor required within 10 mm for stable switching |
Key Features
| Feature | Design Value |
|---|---|
| Addressable latch + decoder duality | Enables both memory-mapped I/O expansion and 3-to-8 signal routing in same footprint |
| Automotive qualification | AEC-Q100 Grade 1 compliance ensures reliability in engine bay and chassis-mounted ECUs |
| Balanced propagation delays | tPLH ≈ tPHL minimizes skew between rising/falling edges in timing-critical control signals |
| High noise immunity | 28 % VCC input hysteresis prevents false triggering from coupled transients in 12 V vehicle harnesses |
| Low quiescent current | 4 µA max ICC allows integration into wake-up circuits without compromising battery drain budgets |
Applications
| Engine Control Unit I/O Expansion | Body Control Module Output Latching |
|---|---|
Use Scenario: Expanding microcontroller GPIO count to manage solenoid drivers, sensor enable lines, and diagnostic LEDs in modern ICE powertrains. IC Role / Device Role / Timing Role: Addressable latch holding commanded states for fuel injector drivers and cam phaser controls during MCU interrupt latency windows. Use Value: Eliminates need for discrete flip-flops or larger CPLDs while maintaining deterministic update timing under 50 ns. | Use Scenario: Holding door lock actuator, window motor, and interior lighting states in body control modules with limited MCU pins. IC Role / Device Role / Timing Role: Non-volatile latch storing last commanded position during ignition cycle transitions and sleep/wake events. Use Value: Prevents unintended actuation during MCU reset sequences; CLEAR input synchronizes all outputs on power-up. |
| Instrument Cluster Display Backlight Control | ADAS Camera Power Sequencing |
Use Scenario: Driving segmented LED backlight arrays in digital instrument clusters requiring independent brightness zones. IC Role / Device Role / Timing Role: Address-selectable output enabling per-segment enable/disable without PWM resource contention on main SoC. Use Value: Reduces firmware overhead by offloading static segment enable logic from real-time display controller. | Use Scenario: Sequencing power rails and enable signals for multi-sensor ADAS camera modules during vehicle startup. IC Role / Device Role / Timing Role: Conditional reset (CLEAR) and addressable latch behavior coordinate staggered sensor initialization to avoid inrush current peaks. Use Value: Ensures camera ISPs and image sensors power up in defined order, preventing I²C bus lockups or register corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar addressable latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC259DR | SO16 package, -40 °C to +85 °C commercial temp range, no AEC-Q100 qualification | Suitable for non-automotive industrial panels or consumer test equipment | Select when automotive qualification and extended temperature margin are not required |
| 74LVX259M | Lower VCC range (2.0 V to 3.6 V), 3.3 V only operation, 10 ns tPD at 3.3 V | Optimized for battery-powered portable instrumentation with 3.3 V logic domains | Select when system uses 3.3 V rails exclusively and requires faster propagation than HC family |
Compared with SN74HC259DR and 74LVX259M, the M74HC259YRM13TR uniquely combines automotive temperature range, AEC-Q100 qualification, and full 2–6 V operation-making it the only choice for under-hood microcontroller I/O expansion where reliability across thermal cycling and voltage transients is mandatory.
Availability
M74HC259YRM13TR is available at Aetrix Electronics and suitable for engine control units, body control modules, instrument clusters, and ADAS camera power sequencers requiring stable component supply across automotive production lifecycles.
Supply support for M74HC259YRM13TR 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, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for automotive, industrial, and consumer markets.
The M74HC259 belongs to ST's high-speed CMOS logic family, engineered specifically for automotive and industrial control applications demanding robust latch behavior, wide supply tolerance, and guaranteed operation across extreme ambient temperatures.
FAQ
What is the function of the CLEAR input when ENABLE is high?
When ENABLE is high (inactive), asserting CLEAR low forces all eight Q0–Q7 outputs to logic low, regardless of prior latch state or address/data inputs. This provides a synchronous system reset capability independent of address decoding, essential for safe power-up initialization in automotive ECUs.
Can the M74HC259YRM13TR operate reliably at 2.0 V supply?
Yes - the device is fully specified down to 2.0 V, with guaranteed tPD ≤ 210 ns, VIH ≥ 1.5 V, and VOL ≤ 0.1 V at 20 µA load. This enables direct interface with low-power microcontrollers and battery-monitoring ICs operating in brown-out conditions common in 12 V vehicle electrical systems.
How does the M74HC259YRM13TR differ from standard 74HC259 variants?
The "Y" suffix and "RM13TR" packaging denote AEC-Q100 Grade 1 qualification, extended -40 °C to +125 °C operation, enhanced ESD protection (HBM 1.5 kV), and automotive-specific screening per AEC-Q001/Q002. These differences ensure long-term reliability in under-hood environments where standard HC259 parts may fail prematurely.
Is the SO16 package RoHS and REACH compliant?
Yes - the M74HC259YRM13TR uses ST's ECOPACK®-compliant SO16 package, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Full material declarations and substance reports are available through ST's official product portal using the order code M74HC259YRM13TR.
M74HC259YRM13TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- D-Type, Addressable
- Circuit:
- 1:8
- Output Type:
- Standard
- Voltage - Supply:
- 2V ~ 6V
- Independent Circuits:
- 1
- Delay Time - Propagation:
- 15ns
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
M74HC259YRM13TR FAQ
1.How can I place an order for M74HC259YRM13TR through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HC259YRM13TR 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 M74HC259YRM13TR reliable?
The price and inventory of M74HC259YRM13TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HC259YRM13TR is usually 5 days.
3.What payment methods are accepted for M74HC259YRM13TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HC259YRM13TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74HC259YRM13TR?
M74HC259YRM13TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HC259YRM13TR 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 M74HC259YRM13TR?
For technical support, including M74HC259YRM13TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HC259YRM13TR requirements.
6.How does Aetrix verify that M74HC259YRM13TR is sourced from the original manufacturer or authorized distributors?
All M74HC259YRM13TR 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 M74HC259YRM13TR meets industry standards.
7.What is the process for return or replacement of M74HC259YRM13TR?
All M74HC259YRM13TR units undergo pre-shipment inspection (PSI). If there is an issue with M74HC259YRM13TR, 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 M74HC259YRM13TR part is unused and in its original packaging.
Return procedure for M74HC259YRM13TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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