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onsemi 74ABT16652CMTD
- Part No.:
- 74ABT16652CMTD
- Manufacturer:
- onsemi
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ABT16652CMTD.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,407
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Product details
Overview
74ABT16652CMTD from Fairchild Semiconductor is a 16-bit bus transceiver with dual D-type registers, 3-STATE outputs, ±64 mA sink/source drive capability, and guaranteed pin-to-pin skew ≤2.5 ns. It supports real-time bidirectional data transfer or registered storage between A and B buses in industrial control backplanes and memory-mapped I/O interfaces.
For engineers reviewing the 74ABT16652CMTD datasheet, pinout, applications, or equivalent options, key selection criteria include 5V operation (4.5–5.5 V), 200 MHz max clock frequency, independent byte-level control, nondestructive hot insertion support, and TSSOP-56 package compatibility with JEDEC MO-153.
Technical Context
The 74ABT16652CMTD integrates two independent 8-bit register banks (A and B), each with dedicated clock (CPABn/CPBAn), select (SABn/SBAn), and output enable (OEABn/OEBAn) controls. Its multiplexed architecture allows simultaneous real-time transfer and stored-data routing without external logic.
It operates strictly at 5V (4.5–5.5 V), delivers 32 mA source / 64 mA sink per I/O, guarantees tPLH/tPHL ≤4.9 ns (CL = 50 pF), and maintains high-impedance glitch-free behavior during power-up/down - critical for hot-swap-capable backplane systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | +4.5 V to +5.5 V - ensures compatibility with legacy 5V TTL/CMOS systems and robust noise margin. |
| Max Clock Frequency | 200 MHz - enables high-speed synchronous bus bridging in real-time industrial controllers. |
| Output Drive | 64 mA sink / 32 mA source - drives heavy capacitive loads (e.g., long PCB traces or multiple inputs) without external buffers. |
| Propagation Delay | ≤4.9 ns (tPLH/tPHL, CL = 50 pF) - supports tight timing budgets in 200 MHz clock domains. |
| Pin-to-Pin Skew | ≤2.5 ns (tOSLH/tOSHL, CL = 250 pF) - preserves data validity across all 16 bits under high-load conditions. |
| Hot Insertion | Nondestructive - allows live replacement in powered-backplane systems without latchup or damage. |
| Operating Temperature | −40°C to +85°C - qualified for extended industrial environments including factory automation and telecom shelves. |
Pinout & Package
74ABT16652CMTD is housed in a 56-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, 6.1 mm wide, with 0.5 mm lead pitch - optimized for high-density PCB layouts while maintaining thermal and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Data Register A I/O | Bidirectional bus interface with 3-STATE control; stores or passes data depending on CPABn/OEABn/SABn states. |
| B0–B15 | Data Register B I/O | Bidirectional bus interface with 3-STATE control; independently controllable from A-side logic. |
| CPABn, CPBAn | Register Clock Inputs | Edge-triggered clocks (LOW→HIGH) that latch data into respective A or B registers regardless of OE/SEL state. |
| SABn, SBAn | Multiplexer Select Inputs | Control real-time vs. registered data path selection for A↔B transfer modes. |
| OEABn, OEBAn | Output Enable Inputs | Active-low enables 3-STATE output drivers; high-impedance state prevents bus contention during idle or transition. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit registers | Enables asynchronous buffering of A and B buses - critical for protocol translation between mismatched subsystems. |
| Multiplexed real-time + stored data paths | Eliminates need for external multiplexers in bus arbitration logic, reducing component count and layout complexity. |
| Guaranteed output skew ≤2.5 ns | Ensures deterministic setup/hold timing across full 16-bit word - essential for reliable capture in high-speed FPGA or ASIC interfaces. |
| High-impedance glitch-free power sequencing | Prevents bus corruption during system power-up/down - required for fault-tolerant industrial control modules. |
| Nondestructive hot insertion | Allows field-replaceable module upgrades without powering down entire chassis - reduces maintenance downtime. |
Applications
| Industrial Backplane Interface | Memory-Mapped I/O Bridge |
|---|---|
Use Scenario: Interfacing microcontroller-based I/O modules to a shared 16-bit parallel backplane in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional transceiver with register staging to isolate CPU writes from peripheral reads and prevent bus contention. Use Value: Enables deterministic 200 MHz data handoff between CPU and distributed I/O cards using only one IC per slot. | Use Scenario: Connecting an FPGA's general-purpose I/O bank to legacy 5V parallel peripherals (e.g., ADCs, DACs, display controllers). IC Role / Device Role / Timing Role: Level-shifting, bus driving, and registered sampling node - synchronizes asynchronous peripheral signals to FPGA clock domain. Use Value: Provides 64 mA sink drive to meet legacy peripheral input thresholds while eliminating external pull-ups or buffers. |
| Hot-Swappable Module Hub | Real-Time Data Multiplexer |
Use Scenario: Central hub in modular test equipment where daughterboards are inserted/removed during operation. IC Role / Device Role / Timing Role: Bus isolator and register buffer - maintains stable bus state during card insertion/removal via nondestructive hot insertion. Use Value: Prevents system reset or data corruption when swapping analog input or digital output modules under power. | Use Scenario: Routing sensor data streams from multiple sources (A-bus) to either real-time processing (B-bus) or buffered logging (internal register → B-bus on demand). IC Role / Device Role / Timing Role: Dual-path multiplexer with storage - selects between live sensor feed or time-stamped snapshot based on control logic. Use Value: Reduces FPGA resource usage by offloading time-domain multiplexing and snapshot capture to dedicated hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit registered transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT16652DGGR | TSSOP-56 package, identical AC/DC specs, TI-branded with same ABT logic family and pinout. | No functional difference; validated for same 5V industrial bus applications. | Select when sourcing from TI-authorized channels or requiring TI-specific qualification documentation. |
| 74FCT16652CTPAG | FCT-family variant: lower ICCZ (0.5 mA vs. 1.0 mA), slightly higher VOL (0.6 V @ 64 mA), same pinout and function. | Better suited for low-quiescent-power systems; marginally reduced noise immunity due to higher VOL. | Choose for power-sensitive designs where <1 mA standby current is critical and 0.6 V VOL meets downstream threshold requirements. |
Compared with SN74ABT16652DGGR and 74FCT16652CTPAG, the 74ABT16652CMTD offers identical timing and drive strength with Fairchild's specific hot-insertion hardening and skew guarantee - making it preferred for mission-critical backplane systems requiring proven field reliability.
Availability
74ABT16652CMTD is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory-mapped I/O bridges, hot-swappable module hubs, and real-time data multiplexers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74ABT16652CMTD 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
Fairchild Semiconductor was a leading designer of high-performance analog and logic ICs, acquired by ON Semiconductor in 2016; its ABT logic family remains widely deployed in industrial and telecom infrastructure.
The 74ABT16652CMTD belongs to Fairchild's ABT (Advanced BiCMOS Technology) logic series - engineered for 5V systems demanding high speed, strong drive, and robust bus integrity in harsh environments.
FAQ
What is the maximum operating frequency of the 74ABT16652CMTD?
The 74ABT16652CMTD supports a maximum clock frequency of 200 MHz under standard AC test conditions (VCC = 5.0 V, CL = 50 pF). This rating applies to both CPABn and CPBAn inputs and is verified across the full industrial temperature range (−40°C to +85°C), enabling use in high-speed synchronous bus architectures without derating.
Does the 74ABT16652CMTD support hot insertion?
Yes, the 74ABT16652CMTD features nondestructive hot insertion capability - confirmed in the Fairchild datasheet DS011599. This means the device can be safely inserted or removed from a live 5V backplane without causing latchup, bus contention, or permanent damage, provided voltage and current limits per Absolute Maximum Ratings are observed.
What is the output drive strength of the 74ABT16652CMTD?
The 74ABT16652CMTD provides 32 mA source current and 64 mA sink current per I/O pin (A0–A15, B0–B15) at VCC = 5.0 V. This drive strength is specified under DC Electrical Characteristics and enables direct interfacing with legacy TTL loads, long traces, or multiple CMOS inputs without external buffers.
Is the 74ABT16652CMTD pin-compatible with other 16-bit transceivers?
The 74ABT16652CMTD shares identical pinout and function with SN74ABT16652DGGR (TI) and 74FCT16652CTPAG (IDT), both in TSSOP-56 packages. However, only SN74ABT16652DGGR is documented as pin-to-pin compatible; 74FCT16652CTPAG requires verification of VOL and ICCZ margins in target systems before substitution.
What package type does the 74ABT16652CMTD use?
The 74ABT16652CMTD uses a 56-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, 6.1 mm wide, with 0.5 mm lead pitch. This package is distinct from the SSOP variant (74ABT16652CSSC) and is optimized for high-density PCB assembly while maintaining thermal performance in industrial applications.
74ABT16652CMTD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74ABT
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- 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:
- 56-TSSOP
74ABT16652CMTD FAQ
1.How can I place an order for 74ABT16652CMTD through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT16652CMTD 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 74ABT16652CMTD reliable?
The price and inventory of 74ABT16652CMTD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT16652CMTD is usually 5 days.
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74ABT16652CMTD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT16652CMTD 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 74ABT16652CMTD?
For technical support, including 74ABT16652CMTD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT16652CMTD requirements.
6.How does Aetrix verify that 74ABT16652CMTD is sourced from the original manufacturer or authorized distributors?
All 74ABT16652CMTD 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 74ABT16652CMTD meets industry standards.
7.What is the process for return or replacement of 74ABT16652CMTD?
All 74ABT16652CMTD units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT16652CMTD, 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 74ABT16652CMTD part is unused and in its original packaging.
Return procedure for 74ABT16652CMTD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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