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Nexperia USA Inc. 74HC597PW,112
- Part No.:
- 74HC597PW,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC597PW,112.pdf
- Description:
- IC 8BIT SHIFT REGISTER 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,383
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Product details
Overview
74HC597PW,112 from Nexperia is an 8-bit parallel-in/serial-out shift register with integrated input flip-flops, featuring dual positive-edge-triggered clocks (STCP for storage, SHCP for shifting), asynchronous master reset (MR), and parallel load (PL). It operates from 2.0 V to 6.0 V, supports -40 °C to +125 °C, and delivers 35 ns propagation delay at 6.0 V - used in industrial I/O expansion, LED matrix controllers, and microcontroller peripheral interfacing where synchronized data capture and serial streaming are required.
For engineers reviewing the 74HC597PW,112 datasheet, 74HC597PW,112 pinout, 74HC597PW,112 application, or 74HC597PW,112 equivalent, this device is selected for its dual-register architecture enabling glitch-free parallel data latching before serial shift, TTL-compatible variants (74HCT597PW), and robust ESD protection (HBM >2000 V) critical for factory-floor embedded control systems.
Technical Context
The 74HC597PW,112 implements a two-stage register pipeline: an 8-bit parallel-access input latch (D0–D7) clocked by STCP, feeding a serial-shift register clocked by SHCP. Both clocks are positive-edge-triggered and fully independent, allowing precise timing separation between data capture and shift operations.
Its functional behavior includes asynchronous MR (active LOW, clears shift register), synchronous PL (active LOW, loads stored data into shift register), and direct DS-to-Q serial path. Input clamp diodes support overvoltage-tolerant interfacing with current-limiting resistors - a key enabler for mixed-voltage system integration.
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 families without level translation. |
| Propagation Delay (SHCP to Q) | 16 ns (typ) at VCC = 6.0 V - supports >24 MHz serial shift rates in high-speed I/O expansion. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor drives. |
| Input Clamp Diodes | Integrated - allows safe connection to signals exceeding VCC when used with external current-limiting resistors. |
| ESD Protection | HBM >2000 V, CDM >1000 V - reduces need for external transient suppression in PCB layouts. |
| Power Dissipation Capacitance | 29 pF - enables accurate dynamic power estimation (PD = CPD × VCC² × fi × N) for thermal design. |
Pinout & Package
TSSOP16 plastic thin shrink small outline package (SOT403-1); 16-pin, 4.4 mm body width, 0.65 mm pitch - optimized for high-density PCB layouts and automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 8) | Ground reference | Primary return path for all internal logic and output currents; must be low-impedance connection. |
| Q (Pin 9) | Serial data output | MSB-first serial output of shift register; compatible with UART RX, SPI MOSI, or cascaded shift-in chains. |
| MR (Pin 10) | Asynchronous master reset | Active-LOW signal that forces Q = LOW regardless of clock state - used for deterministic initialization. |
| SHCP (Pin 11) | Shift register clock | Positive-edge-triggered clock advancing data through shift register; edge-synchronized with DS input. |
| STCP (Pin 12) | Storage register clock | Positive-edge-triggered clock capturing D0–D7 into input latches - decouples sampling from shifting. |
| PL (Pin 13) | Parallel load control | Active-LOW signal transferring latched D0–D7 data into shift register - enables burst-load + serial-stream operation. |
| DS (Pin 14) | Serial data input | Input for serially shifted data; feeds Q on next SHCP edge - supports daisy-chained configurations. |
| D0–D7 (Pins 15,1,2,3,4,5,6,7) | Parallel data inputs | 8-bit wide parallel bus accepting sampled sensor, GPIO, or display data prior to serial transmission. |
| VCC (Pin 16) | Supply voltage | Single 2.0–6.0 V rail powering both logic and output stages; bypass capacitor recommended at pin. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent clock domains | STCP and SHCP allow asynchronous data capture and synchronous serial output - eliminates metastability in multi-clock domain interfaces. |
| Overvoltage-tolerant inputs | Clamp diodes enable safe interfacing with 12 V sensors or legacy 5 V buses using simple series resistors - no external translators needed. |
| Industrial temperature range | -40 °C to +125 °C operation confirmed per JEDEC JESD7A - suitable for motor control enclosures and outdoor metering hardware. |
| Low dynamic power | CPD = 29 pF enables sub-mW active power at 1 MHz - extends battery life in portable diagnostic tools with periodic I/O polling. |
| Asynchronous reset + synchronous load | MR provides immediate Q clearance; PL enables deterministic data injection into shift register mid-operation - critical for error recovery in communication protocols. |
Applications
| Industrial PLC I/O Expansion | LED Matrix Display Controller |
|---|---|
|
Use Scenario: Adding 8-bit digital input capability to a compact programmable logic controller via SPI-connected shift registers. IC Role / Device Role / Timing Role: Captures parallel status of limit switches/sensors on STCP edge, then streams bits serially to MCU via Q output synchronized to SHCP. Use Value: Reduces MCU GPIO count by 8 while maintaining deterministic sampling timing - enables cost-effective scaling of modular I/O racks. |
Use Scenario: Driving 64-LED grid using multiplexed column scanning with row data loaded in parallel and shifted out serially. IC Role / Device Role / Timing Role: Stores row pixel data (D0–D7) on STCP, then shifts it out bit-by-bit on Q to select columns during active row scan period. Use Value: Achieves flicker-free 1 kHz refresh with <35 ns propagation delay - eliminates visible ghosting in high-brightness signage applications. |
| Microcontroller Peripheral Interface | Automotive Body Control Module |
|
Use Scenario: Interfacing 8-channel analog sensor array (e.g., thermistors) to an ARM Cortex-M0+ with limited GPIOs. IC Role / Device Role / Timing Role: Latches ADC-ready flags or digital outputs from sensors on STCP, then shifts status bits to MCU via Q on SHCP for polling. Use Value: Enables full 8-channel status read in ≤8 clock cycles - cuts firmware polling overhead by 8× versus bit-banged GPIO reads. |
Use Scenario: Monitoring door lock switch states and window position sensors in non-safety-critical body electronics. IC Role / Device Role / Timing Role: Samples mechanical switch closures on STCP, buffers data, and shifts status to CAN transceiver controller via Q for diagnostics reporting. Use Value: Meets AEC-Q100 stress test requirements at +125 °C ambient - supports extended lifetime in engine bay proximity installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit parallel-in/serial-out shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT597PW,112 | TTL-compatible inputs (VIH = 2.0 V min at VCC = 4.5 V); identical pinout and function. | Better interoperability with legacy 5 V TTL logic; slightly higher ICC at VCC = 5.5 V. | Select when interfacing with older microcontrollers or logic families lacking CMOS-level drive strength. |
| SN74HC165PWR | Single clock (CLK) instead of dual clocks; no separate STCP/SHCP; uses parallel load (PL) + clock enable (CE). | Lacks independent latching stage - requires precise timing coordination between parallel load and shift phases. | Choose only if board space is constrained and dual-clock timing separation is not required for system stability. |
Compared with 74HCT597PW,112, the original 74HC597PW,112 offers superior noise immunity in mixed-signal environments due to higher VIH/VIL thresholds, while SN74HC165PWR trades architectural flexibility for lower component count - making the 74HC597PW,112 optimal for deterministic, high-reliability I/O expansion.
Availability
74HC597PW,112 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, LED matrix display controllers, microcontroller peripheral interfaces, and automotive body control modules requiring stable component supply across extended temperature ranges.
Supply support for 74HC597PW,112 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 delivering high-performance logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and scalability for industrial and automotive markets.
The 74HC597PW,112 belongs to Nexperia's 74HC logic family - engineered for low-power, high-noise-immunity digital interfacing in space-constrained embedded systems operating across harsh environmental conditions.
FAQ
What is the maximum clock frequency supported by the 74HC597PW,112?
The 74HC597PW,112 supports up to 35 MHz maximum SHCP frequency at VCC = 6.0 V and CL = 15 pF, verified per datasheet Table 7. At 4.5 V, fmax drops to 30 MHz. This rating assumes clean, monotonic clock edges with <13 ns transition time - exceeding this may cause setup/hold violations or metastability in the shift register stage.
Can the 74HC597PW,112 operate reliably at 3.3 V supply?
Yes - the 74HC597PW,112 is fully specified from 2.0 V to 6.0 V, including 3.3 V operation. At VCC = 3.3 V, VIH = 2.31 V (70% of VCC) and VOL = 0.26 V max at 4 mA load, ensuring robust compatibility with 3.3 V microcontrollers and FPGAs without level-shifting circuitry.
How does the PL (parallel load) input interact with the shift register?
PL is an active-LOW synchronous control: when PL = LOW and STCP receives a rising edge, the current contents of the input latches (D0–D7) are transferred into the shift register. This occurs independently of SHCP state - enabling data pre-loading before initiating serial output, which prevents spurious bits on Q during setup.
Is the 74HC597PW,112 pin-compatible with the 74HC165?
No - the 74HC597PW,112 (TSSOP16) has distinct pin assignments: STCP (12), SHCP (11), PL (13), and MR (10) differ from the 74HC165's CLK (2), CLK INH (15), SH/LD (1), and MR (15). Signal routing, PCB layout, and timing control logic are incompatible; direct substitution requires redesign.
74HC597PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Shift Register
- Output Type:
- Push-Pull
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Parallel to Serial
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74HC597PW,112 FAQ
1.How can I place an order for 74HC597PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC597PW,112 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 74HC597PW,112 reliable?
The price and inventory of 74HC597PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC597PW,112 is usually 5 days.
3.What payment methods are accepted for 74HC597PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC597PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC597PW,112?
74HC597PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC597PW,112 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 74HC597PW,112?
For technical support, including 74HC597PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC597PW,112 requirements.
6.How does Aetrix verify that 74HC597PW,112 is sourced from the original manufacturer or authorized distributors?
All 74HC597PW,112 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 74HC597PW,112 meets industry standards.
7.What is the process for return or replacement of 74HC597PW,112?
All 74HC597PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC597PW,112, 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 74HC597PW,112 part is unused and in its original packaging.
Return procedure for 74HC597PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC597PW,112 Tags
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SN74HC164DR
Texas Instruments
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SN74HC595DR
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74HC595D,118
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SN74HC595PWR
Texas Instruments
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74HC165D,653
Nexperia USA Inc.
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SN74LV165APWR
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74HC595BQ,115
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74HC165BQ,115
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CD4094BPWR
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