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NXP Semiconductors 74LVT652PW,112
- Part No.:
- 74LVT652PW,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVT652PW,112.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,334
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Product details
Overview
74LVT652PW,112 from NXP Semiconductors (formerly Philips) is a 3.3V octal transceiver/register with non-inverting 3-State outputs, dual independent registers for A/B buses, bus-hold inputs, and ±64mA/–32mA drive capability. It enables real-time or stored data multiplexing between 8-bit parallel buses in mixed-voltage systems interfacing to 5V logic.
For engineers reviewing the 74LVT652PW,112 datasheet, 74LVT652PW,112 pinout, 74LVT652PW,112 application, or 74LVT652PW,112 equivalent, key selection criteria include its 2.6 ns An→Bn propagation delay at 3.3V, 3.3V supply with 5V-tolerant I/O, power-up 3-State behavior, and TSSOP-24 package compatibility with high-density PCB layouts.
Technical Context
The 74LVT652PW,112 integrates eight bidirectional data channels with D-type flip-flops per side, enabling simultaneous storage and real-time transfer via separate CPAB/CPBA clocks and SAB/SBA select controls. Its BiCMOS process delivers low static current (0.13 mA in 3-State) and high-speed operation up to 180 MHz at 2.7V.
It supports mixed-voltage system interfacing through TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2.0 V), 5.5 V absolute max input voltage, and bus-hold circuitry eliminating external pull-ups on unused A-side inputs. Power-up reset ensures outputs enter 3-State before VCC stabilizes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - Enables stable operation in modern 3.3V systems while tolerating supply ripple. |
| Propagation Delay (An→Bn) | 2.6 ns typical at VCC = 3.3V, CL = 50pF - Supports high-speed inter-bus communication without timing bottlenecks. |
| Output Drive | +64 mA / –32 mA - Drives heavy capacitive loads or multiple TTL inputs without external buffers. |
| I/O Voltage Tolerance | Input voltage range up to 5.5 V - Allows direct connection to legacy 5V buses without level shifters. |
| Bus-Hold Current | ±75 µA to ±150 µA on A-side inputs - Maintains valid logic states on floating inputs, removing need for external pull resistors. |
| Power-Up Behavior | 3-State output during power ramp - Prevents bus contention at power-on before system initialization completes. |
| ESD Protection | 2000 V HBM, 200 V MM - Meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
74LVT652PW,112 is housed in a 24-pin plastic TSSOP (Thin Shrink Small Outline Package), Type I, body width 4.4 mm (SOT355-1), optimized for high-density surface-mount assembly and thermal performance in compact designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 24) | Positive supply voltage | 3.3V main power rail; decoupling capacitor required near this pin for noise suppression. |
| GND (Pin 12) | Ground reference | 0V return path for all internal circuits and I/O; must be low-impedance connection. |
| CPAB (Pin 1), CPBA (Pin 23) | A→B and B→A clock inputs | Edge-triggered clocks controlling register loading; Low-to-High transition latches data into respective registers. |
| SAB (Pin 2), SBA (Pin 22) | A→B and B→A select inputs | Determine whether output data comes from real-time bus or stored register content. |
| OEAB (Pin 3), OEBA (Pin 21) | A→B and B→A output enable | OEAB active-High enables A→B direction; OEBA active-Low enables B→A direction - supports asymmetric control. |
| A0–A7 (Pins 4–11) | A-side bidirectional I/O | 8-bit data port with bus-hold on inputs; functions as input (to register) or 3-State output (from register or bus). |
| B0–B7 (Pins 13–20) | B-side bidirectional I/O | 8-bit data port without bus-hold; operates as input or 3-State output under clock/select/enable control. |
Key Features
| Feature | Design Value |
|---|---|
| Independent A/B registers | Enables concurrent storage of two 8-bit data sets, supporting ping-pong buffering or dual-bus synchronization. |
| Multiplexed real-time/stored data routing | Select pins (SAB/SBA) dynamically choose between live bus data or registered values - no software overhead needed. |
| 5V-tolerant I/O with TTL levels | Interoperates directly with 5V CMOS/TTL systems without level translators, reducing BOM count and layout complexity. |
| Live insertion/extraction support | Allows hot-swap capability in backplane or modular systems where boards are inserted/removed under power. |
| Latch-up immunity & ESD robustness | Exceeds JEDEC Std 17 (500 mA latch-up) and MIL-STD-883 (2000 V HBM), ensuring reliability in noisy industrial environments. |
Applications
| Industrial Backplane Interface | Memory Expansion Bridge |
|---|---|
|
Use Scenario: Connecting a 3.3V microcontroller bus to a legacy 5V peripheral backplane with strict timing and signal integrity requirements. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver and data register, synchronizing asynchronous bus domains using independent clocking. Use Value: Eliminates discrete level shifters and external latches while maintaining sub-3ns propagation delay and preventing bus contention during power sequencing. |
Use Scenario: Extending address/data bus width between a 32-bit host processor and 16-bit SRAM modules operating at different voltage rails. IC Role / Device Role / Timing Role: Octal register-based bus repeater that stores and forwards data with precise edge-aligned timing control. Use Value: Provides deterministic setup/hold timing (ts(H) = 0.9 ns min) and supports 180 MHz clocking, enabling reliable memory access at maximum system bandwidth. |
| Hot-Swappable Module Adapter | Configurable I/O Expansion Hub |
|
Use Scenario: Enabling safe insertion/removal of daughter cards in telecom line cards where bus signals must remain isolated until fully seated. IC Role / Device Role / Timing Role: 3-State-controlled isolation gate with power-up reset and live-insertion tolerance. Use Value: Guarantees outputs remain high-impedance during mechanical mating, avoiding short-circuits or glitches on shared backplane lines. |
Use Scenario: Providing flexible GPIO expansion for an FPGA-based controller managing multiple sensor interfaces with varying voltage domains. IC Role / Device Role / Timing Role: Reconfigurable 8-bit I/O port with register storage, selectable data source (real-time or stored), and programmable direction control. Use Value: Reduces FPGA pin count by offloading bus management logic and supports dynamic reconfiguration without firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transceiver/register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74ALVT652D,118 | Same pinout and function but uses ALVT (Advanced LVT) process - lower ICCZ (0.08 mA vs. 0.13 mA) and improved noise margin. | Preferred in ultra-low-power or high-noise industrial settings where quiescent current and EMI immunity are critical. | Select when minimizing standby power or enhancing noise rejection is prioritized over cost. |
| SN74LVC8T245RHLR | 3.3V dual-supply translator (VCCA=3.3V, VCCB=1.8–5.5V); no internal registers; no bus-hold; push-pull outputs only. | Used for simple level translation without storage; lacks clocked register functionality and real-time/mux capability. | Choose only if application requires voltage translation across wider VCC ranges and does not need register-based data staging. |
Compared with 74LVT652PW,112, the 74ALVT652D,118 offers lower static power but identical functionality and pinout, whereas the SN74LVC8T245RHLR provides broader voltage flexibility but omits registers, bus-hold, and multiplexed data routing - making it unsuitable for applications requiring stored-data arbitration or floating-input stability.
Availability
74LVT652PW,112 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory expansion bridges, hot-swappable module adapters, and configurable I/O expansion hubs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 74LVT652PW,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
NXP Semiconductors, formerly Philips Semiconductors, is a global leader in high-performance analog and logic ICs, delivering robust, automotive-qualified, and industrial-grade semiconductor solutions.
The 74LVT652PW,112 belongs to NXP's LVT (Low-Voltage TTL) logic family, designed specifically for high-speed, mixed-voltage digital systems requiring 3.3V core operation with 5V interface compatibility and enhanced drive strength.
FAQ
What is the maximum clock frequency supported by the 74LVT652PW,112?
The 74LVT652PW,112 supports a maximum clock frequency of 180 MHz at VCC = 2.7 V and –40°C to +85°C ambient temperature. At nominal 3.3V operation, the typical maximum frequency is 150 MHz. These values are measured under standard AC test conditions (CL = 50 pF, tR/tF = 2.5 ns) and reflect guaranteed timing margins for reliable register loading in high-speed bus applications.
Does the 74LVT652PW,112 require external pull-up resistors on its A-side inputs?
No, the 74LVT652PW,112 does not require external pull-up resistors on its A0–A7 inputs because it features integrated bus-hold circuitry. This function maintains the last-valid logic state on floating A-side inputs with ±75 µA to ±150 µA overdrive current, eliminating the need for external components and reducing board space and BOM cost.
Can the 74LVT652PW,112 interface directly with a 5V microcontroller bus?
Yes, the 74LVT652PW,112 can interface directly with a 5V microcontroller bus. Its inputs tolerate up to 5.5 V DC, and its TTL-compatible switching thresholds (VIL = 0.8 V, VIH = 2.0 V) ensure reliable recognition of 5V logic levels. Outputs drive to VOH ≥ 2.4 V at –8 mA and VOL ≤ 0.5 V at 64 mA, meeting 5V TTL fanout requirements.
What is the purpose of the OEBA pin being active-Low on the 74LVT652PW,112?
The OEBA (Output Enable B-to-A) pin on the 74LVT652PW,112 is active-Low to support asymmetric bus control protocols where B→A data flow is enabled by asserting a low signal - aligning with common industry conventions for bidirectional bus arbitration. This allows independent, polarity-matched enable control for each direction without requiring external inverters.
Is the 74LVT652PW,112 pin-compatible with other packages of the same part number?
Yes, the 74LVT652PW,112 is pin-compatible with other 24-pin variants including the SO24 (74LVT652D) and SSOP24 (74LVT652DB) packages. All share identical pin configuration, electrical characteristics, and functional behavior - differing only in physical dimensions and thermal performance. This enables drop-in replacement across form factors during design iteration or supply chain optimization.
74LVT652PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVT
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TSSOP
74LVT652PW,112 FAQ
1.How can I place an order for 74LVT652PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT652PW,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 74LVT652PW,112 reliable?
The price and inventory of 74LVT652PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT652PW,112 is usually 5 days.
3.What payment methods are accepted for 74LVT652PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT652PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVT652PW,112?
74LVT652PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT652PW,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 74LVT652PW,112?
For technical support, including 74LVT652PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT652PW,112 requirements.
6.How does Aetrix verify that 74LVT652PW,112 is sourced from the original manufacturer or authorized distributors?
All 74LVT652PW,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 74LVT652PW,112 meets industry standards.
7.What is the process for return or replacement of 74LVT652PW,112?
All 74LVT652PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT652PW,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 74LVT652PW,112 part is unused and in its original packaging.
Return procedure for 74LVT652PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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