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STMicroelectronics M74HC563RM13TR
- Part No.:
- M74HC563RM13TR
- Manufacturer:
- STMicroelectronics
- Category:
- Latches
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
M74HC563RM13TR.pdf
- Description:
- IC D-TYPE TRANSP SGL 8:8 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,773
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Product details
Overview
M74HC563RM13TR from STMicroelectronics is an octal D-type inverting latch with 3-state outputs, designed for bus-oriented digital systems requiring bidirectional data isolation and level translation. It operates across 2V–6V, delivers 13ns typical propagation delay at 6V, supports ±6mA symmetrical output drive, and features high noise immunity (28% VCC min). Used in microcontroller address/data bus latching and memory interface control.
For engineers reviewing the M74HC563RM13TR datasheet, M74HC563RM13TR pinout, M74HC563RM13TR application, or M74HC563RM13TR equivalent, key selection criteria include its inverting latch behavior, 3-state OE-controlled output disable, TSSOP-20 package compatibility, and guaranteed operation from –55°C to +125°C.
Technical Context
The M74HC563 implements eight independent D-type latches with active-low Latch Enable (LE) and active-low Output Enable (OE), enabling simultaneous data capture and bus release. Its C2MOS silicon gate process ensures low static current (4µA max at 25°C) and rail-to-rail input voltage tolerance (0 to VCC).
Propagation delays are balanced (tPLH ≅ tPHL), and output transition times remain consistent across supply voltages (6–15ns typ. at 4.5V/6V). The device supports wide input rise/fall time ranges (up to 1000ns at 2V), easing integration with legacy TTL and CMOS logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - enables interoperability with 3.3V and 5V logic domains without level shifters |
| tPD (typ) | 13ns at VCC = 6V - supports >30 MHz bus clocking in latch-controlled data paths |
| IOL / IOH | ±6mA min - drives standard CMOS loads and interfaces directly with 74HC/74AHC inputs |
| VIH / VIL | 3.15V / 1.35V min at VCC = 4.5V - ensures robust noise margin (>1.1V) in industrial environments |
| ICC (max) | 40µA at –40°C to +85°C - suitable for low-power battery-backed or always-on control logic |
| Operating Temp | –55°C to +125°C - qualified for automotive under-hood and industrial motor-control applications |
| Output Leakage | ±5µA max at VCC = 6V - prevents unintended bus contention during high-impedance state |
Pinout & Package
TSSOP-20 package (6.5mm × 4.4mm, 0.65mm pitch), thermally enhanced for surface-mount assembly in space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE | Active-low 3-state output enable - disables all Q0–Q7 outputs to high-Z when high |
| 2–9 | D0–D7 | Inverting data inputs - Qn = NOT(Dn) when LE is high |
| 11 | LE | Active-high latch enable - captures and holds inverted D-input values on falling edge |
| 12–19 | Q0–Q7 | Inverting 3-state outputs - reflect inverted D-inputs when LE high and OE low |
| 10 | GND | Ground reference - must be connected to system 0V plane with low-inductance path |
| 20 | VCC | Positive supply - decoupling capacitor (100nF ceramic) required within 5mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| Inverting latch function | Qn = NOT(Dn) latched on LE high → eliminates external inverters in feedback or address decode paths |
| Symmetrical output drive | |IOH| = IOL ≥ 6mA - ensures matched rise/fall times and reduces signal skew on shared buses |
| High noise immunity | VNIH = VNIL ≥ 28% VCC - suppresses EMI-induced glitches in noisy factory-floor or automotive harness environments |
| Wide voltage operation | 2V–6V supply range - allows single part to serve both 3.3V FPGA I/O banks and 5V legacy peripherals |
| ESD protection | Input diodes rated for ±20mA - withstands contact discharge per IEC 61000-4-2 Level 3 (8kV air / 4kV contact) |
Applications
| Microcontroller Bus Interface | Memory Address Latching |
|---|---|
|
Use Scenario: Isolating and latching 8-bit address/data multiplexed bus signals between an MCU and external SRAM or peripheral IC. IC Role / Device Role / Timing Role: Inverting latch capturing address nibble on LE assertion; OE controls bus release during read/write cycles. Use Value: Eliminates timing-critical external inverters and reduces PCB layer count by integrating inversion and 3-state control in one TSSOP-20 device. |
Use Scenario: Holding upper address bits stable during extended memory access cycles in 8051 or Z80-based embedded systems. IC Role / Device Role / Timing Role: Latching A8–A15 address lines while data transfers occur on AD0–AD7; OE synchronized with MEMWR/MEMRD strobes. Use Value: Guarantees setup/hold compliance (ts = 3ns min, th = 5ns min at 6V) for legacy parallel memory interfaces operating up to 20MHz. |
| Industrial I/O Expansion | Programmable Logic Glue |
|
Use Scenario: Buffering and isolating digital I/O signals from PLC backplane to field sensors/actuators in harsh EMI environments. IC Role / Device Role / Timing Role: Providing noise-immune, high-Z-capable data path between isolated CAN or RS-485 controller and local GPIO expander. Use Value: 28% VCC noise margin and –55°C to +125°C rating ensure reliable operation in uncontrolled cabinet temperatures and electrically noisy factory settings. |
Use Scenario: Implementing custom address decoding or status flag aggregation in FPGA/CPLD-based control boards with limited macrocell resources. IC Role / Device Role / Timing Role: Acting as programmable register stage - LE tied to FPGA control signal, OE driven by state machine for dynamic bus arbitration. Use Value: Reduces FPGA logic utilization by offloading synchronous latch+3-state functions, freeing LUTs for complex algorithmic logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal inverting latch with 3-state output applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC563N | PDIP-20 only; higher ICC (80µA max at 125°C); no TSSOP option | Limited to through-hole prototyping or legacy board rework; unsuitable for high-density SMT production | Select when mechanical compatibility with existing DIP sockets is required and thermal derating is acceptable |
| 74AHC563PW | Faster tPD (6.5ns typ at 5V); higher IOL (8mA); VCC = 2–5.5V only | Better suited for high-speed 5V-only systems but incompatible with 6V operation or extended temperature range | Choose for new 5V designs demanding sub-10ns latency where –55°C operation is not needed |
Compared with SN74HC563N and 74AHC563PW, the M74HC563RM13TR uniquely combines TSSOP-20 packaging, full –55°C to +125°C qualification, and 6V operation-making it optimal for compact, ruggedized industrial controllers where long-term supply stability and thermal resilience are critical.
Availability
M74HC563RM13TR is available at Aetrix Electronics and suitable for microcontroller bus interfacing, memory address latching, and industrial I/O expansion requiring stable component supply across extended temperature and voltage ranges.
Supply support for M74HC563RM13TR 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, specializing in automotive, industrial, and power management ICs with strong emphasis on reliability and longevity.
The M74HC563 belongs to ST's high-speed CMOS logic family, engineered for drop-in replacement of legacy 74-series devices while delivering lower power, wider voltage range, and enhanced ESD robustness for modern embedded systems.
FAQ
Is the M74HC563RM13TR pin-compatible with standard 74HC563 devices?
Yes - it shares identical pinout and logic function with industry-standard 74HC563 variants, including SN74HC563N and 74AHC563. The 'RM13TR' suffix denotes TSSOP-20 packaging with tape-and-reel delivery, preserving full electrical and mechanical interchangeability with other 20-pin versions.
What is the maximum clock frequency supported for reliable latch operation?
The device does not operate on a clock signal; it is edge-triggered by LE. With tW(L) = 7ns min at 6V, it supports LE pulse rates up to ~70 MHz in ideal conditions. For bus applications, practical limit is determined by system-level timing margins - typically ≤20 MHz for robust 3-state bus arbitration with hold-time compliance.
Can OE and LE be tied together for simplified control?
No - OE is active-low and LE is active-high; tying them directly causes functional conflict. To achieve combined control, use an inverter between OE and LE, or drive OE from a microcontroller GPIO configured to assert low when LE is high, ensuring correct sequencing of latch capture before output enable.
Does the M74HC563RM13TR support hot-swap or live-insertion?
No - it lacks hot-swap protection circuitry such as slew-rate limiting or undervoltage lockout. Connecting or disconnecting while powered risks latch-up due to input overvoltage transients. Use external series resistors and TVS diodes if live insertion is required in system design.
M74HC563RM13TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74HC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- D-Type Transparent Latch
- Circuit:
- 8:8
- Output Type:
- Tri-State
- Voltage - Supply:
- 2V ~ 6V
- Independent Circuits:
- 1
- Delay Time - Propagation:
- 12ns
- Current - Output High, Low:
- 7.8mA, 7.8mA
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
M74HC563RM13TR FAQ
1.How can I place an order for M74HC563RM13TR through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HC563RM13TR 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 M74HC563RM13TR reliable?
The price and inventory of M74HC563RM13TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HC563RM13TR is usually 5 days.
3.What payment methods are accepted for M74HC563RM13TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HC563RM13TR transactions.
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4.How is shipping managed for M74HC563RM13TR?
M74HC563RM13TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HC563RM13TR 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 M74HC563RM13TR?
For technical support, including M74HC563RM13TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HC563RM13TR requirements.
6.How does Aetrix verify that M74HC563RM13TR is sourced from the original manufacturer or authorized distributors?
All M74HC563RM13TR 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 M74HC563RM13TR meets industry standards.
7.What is the process for return or replacement of M74HC563RM13TR?
All M74HC563RM13TR units undergo pre-shipment inspection (PSI). If there is an issue with M74HC563RM13TR, 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 M74HC563RM13TR part is unused and in its original packaging.
Return procedure for M74HC563RM13TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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