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NXP Semiconductors 74ABT652AD,118
- Part No.:
- 74ABT652AD,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74ABT652AD,118.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 24SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,625
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Product details
Overview
74ABT652AD,118 from NXP Semiconductors is an octal non-inverting bus transceiver/register with 3-state outputs, dual independent clocking (CPAB/CPBA), and bidirectional bus management via OEAB/OEBA and SAB/SBA controls. It operates from 4.5 V to 5.5 V, delivers ±64 mA/−32 mA output drive, and supports real-time or registered data transfer between A and B buses in industrial control backplanes.
For engineers reviewing the 74ABT652AD,118 datasheet, 74ABT652AD,118 pinout, 74ABT652AD,118 application, or 74ABT652AD,118 equivalent, key selection criteria include its 24-pin SO24 package, 300 MHz maximum clock frequency, live insertion capability, power-up 3-state behavior, and BiCMOS process enabling low static/dynamic power with high-speed bus interfacing.
Technical Context
The 74ABT652AD,118 integrates eight D-type flip-flops per bus side, enabling independent storage of A- or B-bus data on LOW-to-HIGH clock transitions. Its dual select (SAB/SBA) and output enable (OEAB/OEBA) logic allows simultaneous or staggered register loading and real-time multiplexed bus transfer without contention.
BiCMOS architecture delivers TTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V), 3.7 ns typical tPLH propagation delay (CPAB→Bn), and robust ESD protection (HBM > 2000 V, MM > 200 V), making it suitable for noise-prone industrial backplane environments requiring latch-up immunity (>500 mA per JESD78B Class II).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with standard 5 V TTL/CMOS systems and stable operation across industrial temperature range. |
| Max Clock Frequency | 300 MHz - Enables high-throughput data routing in fast parallel bus architectures such as ISA or custom control backplanes. |
| Output Drive | +64 mA / −32 mA - Supports direct driving of multiple TTL loads or termination-resistor networks without external buffers. |
| Propagation Delay | 1.5–5.6 ns - Guarantees sub-6 ns timing margins for synchronous bus handshaking at 100+ MHz clock rates. |
| Operating Temperature | −40 °C to +85 °C - Validated for use in extended-temperature industrial enclosures and motor control cabinets. |
| ESD Protection | HBM > 2000 V, MM > 200 V - Meets IEC 61000-4-2 Level 3 requirements for handling and board-level reliability. |
| Latch-up Immunity | >500 mA per JESD78B Class II - Prevents destructive latch-up during transient overvoltage events in shared-bus systems. |
Pinout & Package
74ABT652AD,118 is housed in a plastic small outline package (SO24) with 24 leads, 7.5 mm body width, and standard 1.27 mm lead pitch (SOT137-1). The package supports surface-mount reflow and is compatible with IPC-7351B footprint standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CPAB | A-to-B clock input | Triggers latching of A-bus data into B-side registers on LOW-to-HIGH transition; enables synchronous A→B data capture. |
| 2 SAB | A-to-B select input | Controls whether A-bus data passes through in real time (SAB = H) or is stored (SAB = L) before transfer to B bus. |
| 3 OEAB | A-to-B output enable | Active-HIGH control enabling B-side outputs to drive A bus; when LOW, B outputs enter high-impedance state. |
| 4–11 A0–A7 | A-side I/O terminals | Bidirectional data lines for A bus; function as inputs when receiving from B bus or outputs when driving B bus. |
| 12 GND | Ground reference | Primary 0 V return path for all internal logic and output drivers; must be low-inductance connection in high-speed layouts. |
| 13–20 B0–B7 | B-side I/O terminals | Bidirectional data lines for B bus; operate identically to A0–A7 but under CPBA/SBA/OEBA control. |
| 21 OEBA | B-to-A output enable | Active-LOW control enabling A-side outputs to drive B bus; when HIGH, A outputs are disabled (3-state). |
| 22 SBA | B-to-A select input | Determines real-time (SBA = H) or registered (SBA = L) transfer of B-bus data to A bus. |
| 23 CPBA | B-to-A clock input | Triggers latching of B-bus data into A-side registers on LOW-to-HIGH transition; enables synchronous B→A capture. |
| 24 VCC | Positive supply | 5 V nominal supply rail; decoupling capacitor (100 nF ceramic) required within 5 mm of pin for noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Independent A/B registers | Enables concurrent storage of data from both buses, allowing time-shifted read/write operations without bus arbitration logic. |
| Multiplexed real-time + stored data | Permits dynamic switching between live pass-through and previously captured data-critical for diagnostic snapshot and replay functions. |
| Power-up 3-state | Outputs remain high-impedance until VCC stabilizes, preventing bus contention during system power sequencing. |
| Live insertion/extraction support | Allows hot-swap of daughter cards in backplane systems without disrupting adjacent slots or requiring full system reset. |
| BiCMOS process | Combines bipolar speed and CMOS low static power, achieving 250 µA ICC (outputs HIGH) and 30 mA ICC (outputs LOW) at 5.5 V. |
Applications
| Industrial Backplane Interface | Programmable Logic Controller (PLC) I/O Module |
|---|---|
|
Use Scenario: Bidirectional data exchange between CPU module and distributed I/O modules across a 24-bit parallel backplane. IC Role / Device Role / Timing Role: Bus transceiver/register managing synchronized A↔B transfers with clocked register hold for deterministic scan-cycle timing. Use Value: Eliminates need for separate latches and direction-control logic, reducing component count by 3 ICs per slot while maintaining <5 ns timing skew. |
Use Scenario: Isolating and buffering field I/O signals (digital inputs/outputs) from the PLC's main processor bus. IC Role / Device Role / Timing Role: Registered interface providing glitch-free sampling of sensor inputs and controlled update of actuator outputs on clock edges. Use Value: Enables precise timestamping of input changes and synchronized output updates aligned to PLC scan cycle, improving deterministic control loop performance. |
| Test Equipment Data Acquisition Card | Legacy System Bus Extender |
|
Use Scenario: Capturing high-speed parallel data from DUTs (e.g., memory testers, FPGA debug ports) into onboard FIFO or DRAM buffers. IC Role / Device Role / Timing Role: Real-time bus capture with optional register staging to decouple acquisition rate from host readout bandwidth. Use Value: Supports 300 MHz burst capture while allowing slower microcontroller-based readout, increasing effective test throughput by 2.3× vs. unregistered transceivers. |
Use Scenario: Interfacing modern microcontrollers to legacy 8086/80286-based subsystems using 16-bit multiplexed address/data buses. IC Role / Device Role / Timing Role: Direction-controlled transceiver with register hold to resolve timing mismatches between fast MCU and slow legacy peripherals. Use Value: Resolves setup/hold violations on AD0–AD15 lines by registering data before presenting to legacy bus, eliminating timing-critical PCB trace length matching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transceiver/register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVT652PW,118 | Lower supply voltage (2.7–3.6 V), 3.3 V logic compatible; 200 MHz max fmax; 32 mA drive only. | Suitable for mixed-voltage 3.3 V/5 V systems but not drop-in for 5 V-only designs requiring >200 MHz operation. | Select when migrating to lower-power 3.3 V domains where 5 V tolerance is unnecessary and cost-per-pin is prioritized. |
| SN74ABT16652DLR | 16-bit version in SSOP48; identical 5 V operation, 300 MHz fmax, same BiCMOS process; no pin compatibility. | Used in wider bus systems (e.g., PCI-X add-in cards); requires PCB redesign due to doubled pin count and different package. | Choose for new 16-bit bus designs needing identical timing and drive strength-avoid for 8-bit footprint-constrained upgrades. |
Compared with 74LVT652PW,118 and SN74ABT16652DLR, the 74ABT652AD,118 uniquely balances 5 V robustness, 300 MHz speed, and SO24 compactness for retrofitting legacy 8-bit industrial backplanes without voltage translation or layout change.
Availability
74ABT652AD,118 is available at Aetrix Electronics and suitable for industrial backplane interfaces, PLC I/O modules, test equipment data acquisition cards, and legacy system bus extenders requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74ABT652AD,118 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 is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The 74ABT652AD,118 belongs to NXP's ABT logic family, engineered for high-speed, low-power 5 V bus interfacing in industrial control and instrumentation systems where reliability under electrical stress and thermal variation is critical.
FAQ
What is the operating voltage range for the 74ABT652AD,118?
The 74ABT652AD,118 operates from 4.5 V to 5.5 V DC. This range ensures compatibility with standard 5 V TTL systems while accommodating supply tolerances and ripple in industrial power supplies. Operation outside this range may cause functional failure or permanent damage, as specified in the Absolute Maximum Ratings table.
Does the 74ABT652AD,118 support live insertion in backplane applications?
Yes, the 74ABT652AD,118 supports live insertion and extraction per its datasheet features. Its power-up 3-state behavior and robust ESD protection (HBM > 2000 V) prevent bus contention and electrostatic damage during hot-swap events in modular backplane systems.
How does the 74ABT652AD,118 handle bidirectional data flow between A and B buses?
The 74ABT652AD,118 uses separate control pins-OEAB/OEBA for output enable and SAB/SBA for select-to independently manage direction and real-time vs. registered transfer. For example, setting OEAB = HIGH and OEBA = LOW enables A→B real-time transfer, while asserting CPAB clocks A data into B-side registers for later use.
What is the maximum clock frequency supported by the 74ABT652AD,118?
The 74ABT652AD,118 supports a maximum clock frequency of 300 MHz under recommended operating conditions (VCC = 5.0 V ± 0.5 V, Tamb = −40 °C to +85 °C). This value is validated in the Dynamic Characteristics table and applies to CPAB and CPBA inputs for register loading operations.
Is the 74ABT652AD,118 pin-compatible with other packages in the 74ABT652A family?
No, the 74ABT652AD,118 (SO24/SOT137-1) is not pin-compatible with the SSOP24 (74ABT652ADB) or TSSOP24 (74ABT652APW) variants. While all share identical logic functionality and pin numbering, their physical footprints differ significantly in body width (7.5 mm vs. 5.3 mm vs. 4.4 mm) and lead pitch compliance, requiring distinct PCB layouts.
74ABT652AD,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SO
74ABT652AD,118 FAQ
1.How can I place an order for 74ABT652AD,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT652AD,118 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 74ABT652AD,118 reliable?
The price and inventory of 74ABT652AD,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT652AD,118 is usually 5 days.
3.What payment methods are accepted for 74ABT652AD,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT652AD,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT652AD,118?
74ABT652AD,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT652AD,118 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 74ABT652AD,118?
For technical support, including 74ABT652AD,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT652AD,118 requirements.
6.How does Aetrix verify that 74ABT652AD,118 is sourced from the original manufacturer or authorized distributors?
All 74ABT652AD,118 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 74ABT652AD,118 meets industry standards.
7.What is the process for return or replacement of 74ABT652AD,118?
All 74ABT652AD,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT652AD,118, 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 74ABT652AD,118 part is unused and in its original packaging.
Return procedure for 74ABT652AD,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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