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Nexperia USA Inc. 74HC573D,653
- Part No.:
- 74HC573D,653
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Latches
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74HC573D,653.pdf
- Description:
- IC D-TYPE TRANSP SGL 8:8 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:6,792
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Product details
Overview
74HC573D,653 from Nexperia is an octal D-type transparent latch with 3-state outputs, used for bus-oriented data latching and I/O port expansion in microprocessor systems. It features independent latch enable (LE, active HIGH) and output enable (OE, active LOW), operates from 2.0 V to 6.0 V, supports -40 °C to +125 °C, and delivers propagation delay as low as 14 ns at VCC = 6.0 V.
For engineers reviewing the 74HC573D,653 datasheet, 74HC573D,653 pinout, 74HC573D,653 application, or 74HC573D,653 equivalent, key selection criteria include 3-state bus drive capability, CMOS-level input compatibility, latch transparency timing, and SO20 package thermal performance in industrial control and embedded interface designs.
Technical Context
The device implements eight independent D-type latches with synchronous parallel loading controlled by LE. When LE is HIGH, Qn follows Dn in real time (transparent mode); when LE transitions LOW, the input state is captured and held. OE operates independently to place all outputs in high-impedance state without affecting latch contents.
Input clamp diodes allow safe interfacing with voltages exceeding VCC using current-limiting resistors. The logic family complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), with HBM ESD rating >2000 V and CDM >1000 V, supporting robust operation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - Enables direct interface with 3.3 V and 5 V logic domains without level shifters. |
| Propagation Delay (Dn→Qn) | 14 ns (typ.) at VCC = 6.0 V, CL = 50 pF - Supports high-speed bus handshaking up to ~35 MHz effective throughput. |
| Output Drive Strength | ±7.8 mA (VOH/VOL) at VCC = 4.5 V - Sufficient to drive 10 LS-TTL loads or 20 CMOS inputs on shared buses. |
| Operating Temperature | -40 °C to +125 °C - Qualified for under-hood automotive modules and industrial PLC backplanes. |
| Power Dissipation | 500 mW max (SO20) - Derates linearly above 109 °C; enables stable operation in thermally constrained PCB layouts. |
| Input Leakage Current | ±0.1 μA (max) at 25 °C - Minimizes static power draw and prevents unintended logic transitions in battery-backed systems. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Meets IEC 61000-4-2 Level 2 requirements for board-level ESD immunity. |
Pinout & Package
74HC573D,653 is supplied in a plastic small outline package (SO20, SOT163-1) with 20 leads and 7.5 mm body width. Pin 1 is index-marked; pins are arranged with inputs (D0–D7, LE, OE) on left side and outputs (Q0–Q7) on right side, enabling clean microprocessor bus routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | 3-state output enable | Active LOW global control: asserts high-impedance on all Qn outputs without altering latch state. |
| 2–9 (D0–D7) | Data inputs | Asynchronous parallel inputs; accept CMOS-level signals; include internal clamp diodes for overvoltage tolerance. |
| 10 (GND) | Ground reference | 0 V return path for all internal logic and output drivers; must be low-impedance for noise immunity. |
| 11 (LE) | Latch enable | Active HIGH control: HIGH enables transparency; LOW-to-HIGH transition captures Dn values into latches. |
| 12–19 (Q0–Q7) | 3-state latch outputs | Non-inverting buffered outputs; tri-state capable; share common OE control for bus arbitration. |
| 20 (VCC) | Supply voltage | Primary power rail (2.0–6.0 V); decoupling capacitor required within 10 mm of pin for transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range | 2.0–6.0 V operation eliminates need for separate voltage rails when interfacing mixed-voltage subsystems. |
| Independent OE/LE control | Allows latched data retention while outputs are disabled-critical for multi-master bus contention management. |
| Input clamp diodes | Enable safe connection to signals up to VCC + 0.5 V using external series resistors, reducing BOM count in legacy system upgrades. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B-ensures reliability in high-noise factory automation environments. |
| Thermal enhanced package | SOT163-1 offers 12.3 mW/K derating above 109 °C, supporting sustained operation in enclosed industrial enclosures. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Expanding GPIO count on a Cortex-M4-based PLC CPU board to drive 8 relay coils and read 8 limit switches via shared 8-bit data bus. IC Role / Device Role / Timing Role: Acts as bidirectional I/O port latch: Dn accepts sensor inputs during OE=HIGH; Qn drives relays during OE=LOW; LE synchronizes capture on rising edge of address strobe. Use Value: Eliminates need for discrete buffers and reduces PCB layer count by consolidating input sampling and output driving into one SO20 device. | Use Scenario: Interfacing a CAN microcontroller to dashboard LED arrays and door lock actuators in a 12 V vehicle platform with 5 V logic domain. IC Role / Device Role / Timing Role: Provides isolated 8-bit output staging between MCU and high-current LED drivers; OE tied to CAN interrupt line to freeze display during message processing. Use Value: Prevents visual flicker during CAN frame transmission by holding LED states constant during critical ISR execution windows. |
| Test Equipment Digital Pattern Generator | Medical Infusion Pump Controller |
Use Scenario: Generating precise digital stimulus waveforms for IC functional testing using FPGA-controlled parallel output. IC Role / Device Role / Timing Role: Latches pattern data from FPGA's high-speed parallel bus; Qn outputs drive DUT pins with deterministic setup/hold timing relative to LE edge. Use Value: Achieves sub-15 ns timing resolution on stimulus edges-enabling validation of setup/hold margins on high-speed memory interfaces. | Use Scenario: Isolating safety-critical motor control logic from non-safety firmware running on a dual-core ARM processor in an IEC 62304-certified pump. IC Role / Device Role / Timing Role: Serves as hardware-enforced output gate: only firmware executing in ASIL-B partition can assert LE; OE remains asserted until safety monitor validates command integrity. Use Value: Adds fail-safe hardware interlock preventing unauthorized motor activation-even if main application firmware is compromised. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC573N | DIP-20 package; no thermal pad; higher RθJA (70 °C/W vs. 55 °C/W for SO20); identical electrical specs. | Suitable for prototyping and through-hole assembly; not recommended for high-density or thermally constrained PCBs. | Select when manual soldering or breadboard evaluation is required; avoid in production boards exceeding 50 mW average power. |
| 74HCT573D,653 | TTL-compatible inputs (VIH = 2.0 V min); otherwise identical pinout, timing, and packaging. | Required when interfacing legacy 5 V TTL peripherals without level shifters; slightly higher ICC at VCC = 5.5 V. | Choose for mixed-logic systems with 74LS/74F devices; use 74HC573D,653 for pure CMOS or 3.3 V–5 V hybrid designs. |
Compared with SN74HC573N and 74HCT573D,653, the 74HC573D,653 provides optimal thermal performance in surface-mount industrial systems, TTL-input compatibility is unnecessary unless interfacing legacy components, and DIP packaging sacrifices board space efficiency and thermal reliability.
Availability
74HC573D,653 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body controllers, automated test equipment, and medical infusion pumps requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC573D,653 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
Nexperia is a global semiconductor expert specializing in high-performance logic, analog, and MOSFET solutions, with manufacturing certified to ISO 9001 and IATF 16949 standards.
The 74HC573 belongs to Nexperia's HC logic family, engineered for low-power, high-noise-immunity digital interfacing in industrial, automotive, and consumer applications where reliability and wide voltage operation are essential.
FAQ
What is the maximum clock frequency supported by the 74HC573D,653?
The 74HC573D,653 does not operate on a clock signal-it is a transparent latch controlled by level-sensitive LE and OE inputs. Its effective data throughput is limited by propagation delay (14 ns typ. at 6.0 V), enabling reliable operation with address/data strobes up to approximately 35 MHz in bus-oriented systems.
Can 74HC573D,653 drive LEDs directly?
Yes-each Qn output can source or sink up to ±7.8 mA at VCC = 4.5 V, sufficient to drive standard 2 mA LEDs with appropriate current-limiting resistors. For higher-current LEDs (>10 mA), external drivers are required due to SO20 package power dissipation limits.
Is the 74HC573D,653 pin-compatible with 74LS573?
No-while both are octal transparent latches, 74LS573 uses TTL input thresholds and has different DC characteristics (e.g., VIH = 2.0 V min, but IIL = -0.4 mA). Direct replacement requires verifying input drive strength and voltage compatibility; 74HCT573D,653 is the TTL-compatible alternative.
Does the 74HC573D,653 require pull-up or pull-down resistors on LE or OE?
Not inherently-LE and OE are CMOS inputs with ±0.1 μA leakage. However, in floating-input scenarios (e.g., unconnected microcontroller pins), weak pull-downs (10–100 kΩ) on OE prevent unintended bus contention, and pull-downs on LE avoid spurious latching during power-up or reset sequences.
74HC573D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- D-Type Transparent Latch
- Circuit:
- 8:8
- Output Type:
- Tri-State
- Voltage - Supply:
- 2V ~ 6V
- Independent Circuits:
- 1
- Delay Time - Propagation:
- 14ns
- Current - Output High, Low:
- 7.8mA, 7.8mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74HC573D,653 FAQ
1.How can I place an order for 74HC573D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC573D,653 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 74HC573D,653 reliable?
The price and inventory of 74HC573D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC573D,653 is usually 5 days.
3.What payment methods are accepted for 74HC573D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC573D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC573D,653?
74HC573D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC573D,653 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 74HC573D,653?
For technical support, including 74HC573D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC573D,653 requirements.
6.How does Aetrix verify that 74HC573D,653 is sourced from the original manufacturer or authorized distributors?
All 74HC573D,653 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 74HC573D,653 meets industry standards.
7.What is the process for return or replacement of 74HC573D,653?
All 74HC573D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC573D,653, 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 74HC573D,653 part is unused and in its original packaging.
Return procedure for 74HC573D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC573D,653 Tags
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SN74HC573APWR
Texas Instruments
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SN74HC573ADWR
Texas Instruments
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SN74AHC573PWR
Texas Instruments
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SN74HCT573DWR
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SN74HC373N
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SN74HC573AN
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74VHC573MTCX
onsemi
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MC74LCX573DTR2G
onsemi
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74AUP1G373GW,125
Nexperia USA Inc.
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SN74LVC1G373DCKR
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SN74LVC1G373DBVR
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NC7SZ373P6X
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