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NXP Semiconductors 74ABT16821ADGG,112
- Part No.:
- 74ABT16821ADGG,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ABT16821ADGG,112.pdf
- Description:
- IC FF D-TYPE DUAL 10BIT 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,502
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Product details
Overview
74ABT16821ADGG,112 from Nexperia is a 20-bit, positive-edge-triggered bus-interface D-type flip-flop with dual independent 10-bit registers and 3-state outputs. It operates at 4.5 V to 5.5 V, delivers ±64 mA/−32 mA output drive, and supports 160 MHz maximum clock frequency across −40 °C to +85 °C. It is used in high-speed data buffering and bus isolation for industrial computing backplanes.
For engineers reviewing the 74ABT16821ADGG,112 datasheet, 74ABT16821ADGG,112 pinout, 74ABT16821ADGG,112 application, or 74ABT16821ADGG,112 equivalent, this device serves as a high-drive, low-noise register for synchronous data capture and 3-state bus control in logic-intensive embedded systems.
Technical Context
The 74ABT16821ADGG,112 implements two independent 10-bit edge-triggered registers, each with dedicated clock (nCP) and active-LOW output enable (nOE). Data is latched on the rising edge of nCP, with setup/hold times specified at 1.8 ns and 1.0 ns respectively.
Its BiCMOS architecture enables simultaneous low static current (≤1.0 mA in 3-state) and high dynamic drive (+64 mA sink, −32 mA source), while multiple VCC/GND pins reduce switching noise and support live insertion/extraction in hot-swap applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 20-bit dual 10-bit positive-edge-triggered D-type flip-flop with 3-state outputs |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL logic rails |
| Max Clock Frequency | 160 MHz - enables high-throughput data staging in bus interfaces |
| Output Drive | +64 mA sink / −32 mA source - drives heavily loaded buses and MOS memory loads |
| Propagation Delay | 1.1–3.7 ns (tPHL/tPLH) - ensures tight timing margins in synchronous designs |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial and automotive under-hood environments |
| ESD Protection | HBM >2000 V, MM >200 V - robust handling during board assembly and field service |
Pinout & Package
TSSOP56 package (SOT364-1): plastic thin shrink small outline, 56 leads, body width 6.1 mm, 1.2 mm max height, lead pitch 0.5 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 28 | 1OE, 2OE | Active-LOW output enable for Register 1 and Register 2 - independently disables all 10 outputs per section to high-impedance state |
| 2–14, 15–27 | 1Q0–1Q9, 2Q0–2Q9 | Registered data outputs - reflect latched D-inputs only when corresponding nOE is LOW |
| 4, 11, 18, 25, 32, 39, 46, 53 | GND | Eight ground terminals - minimize ground bounce and improve signal integrity in high-speed operation |
| 7, 22, 35, 50 | VCC | Four supply voltage inputs - reduce power distribution impedance and suppress switching noise |
| 29, 56 | 1CP, 2CP | Rising-edge clock inputs - trigger simultaneous capture of all 10 D inputs per register |
| 30–34, 36–38, 40–42, 43–45, 47–49, 51–52, 54–55 | 2D0–2D9, 1D0–1D9 | Data inputs - sampled one setup time before each nCP rising edge; no internal latching without clock |
Key Features
| Feature | Design Value |
|---|---|
| Power-up 3-state | Outputs remain in high-impedance state until VCC stabilizes - prevents bus contention during power ramp |
| Live insertion/extraction | BiCMOS I/O structure allows safe hot-plug into powered backplanes without latch-up or damage |
| Latch-up immunity | Exceeds 500 mA per JESD78B Class II Level A - ensures reliability in noisy industrial environments |
| Multiple VCC/GND pins | Four VCC and eight GND pins - lower effective power/ground inductance for clean switching waveforms |
| High-current 3-state buffers | ±64 mA sink/source capability - directly interfaces with legacy TTL, CMOS, and MOS memory loads |
Applications
| Industrial Backplane Buffering | Automotive ECU Data Staging |
|---|---|
Use Scenario: Isolating and synchronizing parallel data between microcontroller subsystems and FPGA-based I/O expansion modules in programmable logic controllers. IC Role / Device Role / Timing Role: Dual-register buffer capturing 20-bit sensor or actuator data on rising clock edges, then presenting it to shared backplane via controlled 3-state outputs. Use Value: Enables deterministic data handoff with sub-4 ns propagation delay and eliminates bus contention using independent OE control per register bank. |
Use Scenario: Temporarily storing CAN message payloads and diagnostic status bits prior to transmission in engine control units operating across extended temperature ranges. IC Role / Device Role / Timing Role: Synchronous 20-bit data latch providing glitch-free hold-and-forward behavior between ASIL-B-compliant MCU peripherals and communication transceivers. Use Value: Delivers latch-up immunity (>500 mA), HBM ESD protection (>2000 V), and −40 °C to +85 °C operation required for under-hood deployment. |
| Computing Memory Interface | Test Equipment Pattern Generation |
Use Scenario: Driving address/data buses between high-speed microprocessors and SRAM or flash memory arrays in test instrumentation and data acquisition systems. IC Role / Device Role / Timing Role: Bus interface register providing level-shifted, high-drive 3-state outputs compatible with 5 V memory devices while isolating processor I/O. Use Value: Supports 160 MHz clocking and ±64 mA drive to meet fast access timing and capacitive load requirements of dense memory layouts. |
Use Scenario: Generating precise, synchronized multi-bit stimulus patterns for IC functional testing where deterministic timing and output impedance control are critical. IC Role / Device Role / Timing Role: Edge-triggered register holding pattern vectors and releasing them onto test bus lines with nanosecond-level timing accuracy and minimal skew. Use Value: Achieves 1.1 ns minimum tPHL and 1.0 ns hold time - enabling sub-2 ns timing resolution in automated test equipment (ATE) digital channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 20-bit bus-interface flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT16821DGGR | Same function and pinout; TI version in TSSOP56; identical 4.5–5.5 V range and ±64 mA drive but higher ICC (max 19 mA vs 1.0 mA in 3-state) | Higher static power draw limits suitability in always-on low-power monitoring nodes | Select if TI supply chain alignment or existing TI reference design reuse is prioritized over ultra-low 3-state quiescent current |
| 74LVT16821ADGG,118 | Nexperia LVT variant: 3.3 V only (2.7–3.6 V), lower drive (±32 mA), faster tPLH (1.0 ns typ), but no 5 V tolerance | Not suitable for mixed-voltage 5 V bus systems; requires level-shifting when interfacing with legacy 5 V peripherals | Prefer for new 3.3 V-only designs requiring lower propagation delay and reduced power at 3.3 V operation |
Compared with SN74ABT16821DGGR and 74LVT16821ADGG,118, the 74ABT16821ADGG,112 uniquely balances 5 V compatibility, ultra-low 3-state ICC (≤1.0 mA), and industrial-grade latch-up/ESD robustness - making it optimal for legacy bus upgrades and harsh-environment buffering where power efficiency and reliability are co-prioritized.
Availability
74ABT16821ADGG,112 is available at Aetrix Electronics and suitable for industrial backplane buffering, automotive ECU data staging, and computing memory interface applications requiring stable component supply and long-term lifecycle assurance.
Supply support for 74ABT16821ADGG,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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
The 74ABT16821ADGG,112 belongs to Nexperia's ABT logic family - engineered for high-speed, high-drive 5 V TTL-compatible bus interfacing with enhanced noise immunity and live-insertion capability.
FAQ
What is the maximum clock frequency supported by the 74ABT16821ADGG,112?
The 74ABT16821ADGG,112 supports a maximum clock frequency of 160 MHz under recommended operating conditions (VCC = 5.0 V ± 0.5 V, −40 °C to +85 °C). This value is guaranteed by the dynamic characteristics table in the official Nexperia datasheet Rev. 03, with typical performance reaching 250 MHz at 25 °C.
Does the 74ABT16821ADGG,112 support live insertion and extraction?
Yes, the 74ABT16821ADGG,112 supports live insertion and extraction due to its BiCMOS I/O structure and built-in power-up 3-state behavior. Its latch-up protection exceeds 500 mA per JESD78B Class II Level A, and ESD ratings (HBM >2000 V) ensure robustness during hot-swap operations in powered backplanes.
What are the key differences between the 74ABT16821ADGG,112 and the 74LVT16821ADGG,118?
The 74ABT16821ADGG,112 operates at 4.5–5.5 V with ±64 mA drive and 160 MHz max frequency, while the 74LVT16821ADGG,118 is a 3.3 V-only part (2.7–3.6 V), offers ±32 mA drive, and achieves faster typical propagation delay (1.0 ns tPLH) but lacks 5 V tolerance and industrial temperature margin.
How many ground and supply pins does the 74ABT16821ADGG,112 have, and why?
The 74ABT16821ADGG,112 has eight GND pins (pins 4, 11, 18, 25, 32, 39, 46, 53) and four VCC pins (pins 7, 22, 35, 50). This distributed power/ground architecture minimizes switching noise, reduces ground bounce, and improves signal integrity in high-speed 20-bit bus applications.
Is the 74ABT16821ADGG,112 pin-compatible with other 56-pin TSSOP logic devices?
The 74ABT16821ADGG,112 uses the SOT364-1 (TSSOP56) package with 0.5 mm pitch and 6.1 mm body width. While pin count matches other TSSOP56 logic ICs, its specific pin assignment - including dual OE/CP pairs and interleaved D/Q banks - is unique to the ABT16821A function and not interchangeable with generic 56-pin logic devices.
74ABT16821ADGG,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 10
- Clock Frequency:
- 250 MHz
- Max Propagation Delay @ V, Max CL:
- 3.3ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 1 mA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TSSOP
74ABT16821ADGG,112 FAQ
1.How can I place an order for 74ABT16821ADGG,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT16821ADGG,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of 74ABT16821ADGG,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT16821ADGG,112 is usually 5 days.
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5.How can I obtain technical support or documentation for 74ABT16821ADGG,112?
For technical support, including 74ABT16821ADGG,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT16821ADGG,112 requirements.
6.How does Aetrix verify that 74ABT16821ADGG,112 is sourced from the original manufacturer or authorized distributors?
All 74ABT16821ADGG,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 74ABT16821ADGG,112 meets industry standards.
7.What is the process for return or replacement of 74ABT16821ADGG,112?
All 74ABT16821ADGG,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT16821ADGG,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 74ABT16821ADGG,112 part is unused and in its original packaging.
Return procedure for 74ABT16821ADGG,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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