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Texas Instruments SN74ABT16823DGGR
- Part No.:
- SN74ABT16823DGGR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74ABT16823DGGR.pdf
- Description:
- IC FF D-TYPE DUAL 9BIT 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,814
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Product details
Overview
SN74ABT16823DGGR from Texas Instruments is an 18-bit bus-interface D-type flip-flop with 3-state outputs, designed for high-speed bidirectional bus driving in industrial and embedded systems. It operates from 4.5 V to 5.5 V, supports 150 MHz clock frequency, delivers ±32 mA/±64 mA output drive, and features independent clock-enable and clear control per 9-bit section.
For engineers reviewing the SN74ABT16823DGGR datasheet, SN74ABT16823DGGR pinout, SN74ABT16823DGGR application, or SN74ABT16823DGGR equivalent, this device is selected for wide-bus buffering, I/O port expansion, and parity-enabled bidirectional data transfer where high-drive, low-ground-bounce, and power-up high-impedance behavior are critical.
Technical Context
The SN74ABT16823DGGR implements two independent 9-bit D-type flip-flop sections, each with dedicated CLK, CLKEN, CLR, and OE controls. Its EPIC-IIB BiCMOS architecture enables fast propagation (tPLH/tPHL ≤ 6.8 ns), low output ground bounce (<1 V), and distributed VCC/GND pinning to suppress switching noise.
It supports flow-through pin mapping for optimized PCB layout, retains data during output disable (OE high), and enters high-impedance state at VCC < 2.1 V during power sequencing-enabling safe hot-insertion and rail-order independence without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | 18-bit D-type flip-flop with dual 9-bit sections, 3-state outputs |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5-V TTL and CMOS buses |
| Max Clock Frequency | 150 MHz - supports high-throughput data latching in backplane and memory interface applications |
| Output Drive | –32 mA IOH, +64 mA IOL - drives heavy capacitive loads (e.g., >50 pF) without external buffers |
| Propagation Delay | tPLH/tPHL ≤ 6.8 ns @ VCC = 5 V, TA = 25°C, CL = 50 pF - ensures timing margin in fast synchronous designs |
| Power-Up State | Outputs enter high-impedance when VCC < 2.1 V - prevents bus contention during power ramp |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and communications equipment |
Pinout & Package
TSSOP-56 (DGG) package: 12.0 mm × 4.4 mm × 1.2 mm body, 0.5 mm pitch, lead-free NiPdAu finish, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1CLR, 2CLR | Asynchronous clear input (active-low) | Forces Q outputs low independently of clock; resets respective 9-bit section |
| 1CLK, 2CLK | Clock input (positive-edge triggered) | Samples D inputs on rising edge; synchronized with corresponding CLKEN |
| 1CLKEN, 2CLKEN | Clock enable input (active-low) | Disables clock buffer when high; holds Q outputs unchanged |
| 1OE, 2OE | Output enable input (active-low) | Places 9 outputs in high-impedance state without affecting internal latch state |
| 1D1–1D9, 2D1–2D9 | Data inputs | Parallel 18-bit data path; each D feeds corresponding Q on enabled clock edge |
| 1Q1–1Q9, 2Q1–2Q9 | 3-state output terminals | High-drive, low-ground-bounce outputs; support bus sharing and hot-swap isolation |
| VCC, GND | Power and ground pins | Distributed across package (12 VCC, 12 GND) - minimizes simultaneous switching noise |
Key Features
| Feature | Design Value |
|---|---|
| High-Drive Outputs | –32 mA / +64 mA drive strength eliminates need for external bus transceivers in medium-load systems |
| Flow-Through Pinout | Input-to-output signal routing across package edges simplifies layer stacking and reduces trace crossovers |
| Power-Up High-Z | Automatic high-impedance state below 2.1 V VCC prevents bus conflicts during power sequencing |
| Low Ground Bounce | VOLP < 1 V @ 5 V, 25°C - maintains signal integrity under heavy simultaneous switching |
| ESD Protection | ≥2000 V HBM, ≥200 V MM - exceeds MIL-STD-883 requirements for robust board-level handling |
Applications
| Industrial Backplane Interface | Memory-Mapped I/O Expansion |
|---|---|
Use Scenario: Interfacing microcontroller local bus to multi-slot industrial backplane with long trace runs and stubs. IC Role / Device Role / Timing Role: Bidirectional 18-bit data register with independent clock-enable per segment for staggered address/data handshaking. Use Value: High-drive outputs maintain signal integrity over 15-cm traces; power-up high-Z prevents backplane contention during cold start. |
Use Scenario: Expanding GPIO count on a PLC CPU module using parallel I/O ports mapped into memory space. IC Role / Device Role / Timing Role: Latched 18-bit input/output port with asynchronous reset and output enable for software-controlled direction switching. Use Value: Dual 9-bit sections allow separate control of input and output banks; tPHL ≤ 6.0 ns meets 150 MHz bus timing budgets. |
| Parity-Enabled Data Bus | Hot-Swappable Module Interface |
Use Scenario: Adding even-parity generation and checking to a 16-bit data bus in telecom line cards. IC Role / Device Role / Timing Role: 18-bit register holding 16 data bits + 2 parity bits; CLKEN used to gate parity update cycles. Use Value: Independent CLKEN per section allows time-multiplexed parity calculation without halting main data flow. |
Use Scenario: Isolating a field-replaceable compute module from the system backplane during insertion/removal. IC Role / Device Role / Timing Role: Buffering all 18 signals between module and backplane; OE tied to hot-swap controller for controlled enable/disable. Use Value: Power-up high-Z and robust ESD rating ensure no damage or bus fault during live insertion; 0.5 mm pitch supports compact connector routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus-interface flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT16223DGGR | 18-bit registered transceiver (non-inverting); includes direction control instead of dual CLKEN/CLR | Better suited for true bidirectional data flow with single-direction control; lacks independent section reset | Select when bus direction switching dominates over independent section latching |
| SN74ALVTH16823DGGR | Lower voltage (2.3–3.6 V), lower drive (–24/+24 mA), higher speed (tPD ≤ 4.2 ns), same pinout | Targets 3.3-V systems with tighter timing margins; not 5-V tolerant | Select for modern low-voltage designs requiring reduced power and faster settling |
Compared with SN74ABT16823DGGR, SN74ABT16223DGGR trades section-level control for integrated direction logic, while SN74ALVTH16823DGGR shifts to 3.3-V operation with improved speed but reduced drive and voltage range-making SN74ABT16823DGGR optimal for legacy 5-V industrial bus interfaces requiring robust section isolation and high-current drive.
Availability
SN74ABT16823DGGR is available at Aetrix Electronics and suitable for industrial backplanes, memory-mapped I/O expansion, parity-enabled data buses, and hot-swappable module interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74ABT16823DGGR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of expertise in high-reliability industrial and automotive IC design.
The SN74ABT16823DGGR belongs to TI's Widebus™ family of high-speed bus-interface logic, engineered specifically for noise-immune, high-drive data transfer in industrial control, telecom infrastructure, and test equipment.
FAQ
What is the maximum clock frequency supported by the SN74ABT16823DGGR?
The SN74ABT16823DGGR supports a maximum clock frequency of 150 MHz across its full operating temperature range (–40°C to +85°C) and supply voltage range (4.5 V to 5.5 V). This specification is validated per the recommended operating conditions and confirmed in the switching characteristics table of the official datasheet (SCBS217C, Rev. January 1997).
Does the SN74ABT16823DGGR have built-in power-up protection?
Yes, the SN74ABT16823DGGR automatically enters a high-impedance output state when VCC is below 2.1 V, ensuring bus isolation during power-up and power-down sequences. This behavior is intrinsic to the device's BiCMOS design and requires no external circuitry-critical for preventing bus contention in multi-rail systems.
Can the SN74ABT16823DGGR be used as two independent 9-bit registers?
Yes, the SN74ABT16823DGGR is explicitly architected as two independent 9-bit D-type flip-flop sections, each with dedicated CLK, CLKEN, CLR, and OE inputs. The function table and logic diagram confirm fully decoupled operation-allowing one section to latch data while the other holds or clears, enabling flexible partitioned buffering.
What is the output drive capability of the SN74ABT16823DGGR?
The SN74ABT16823DGGR provides –32 mA high-level output current (IOH) and +64 mA low-level output current (IOL) at VCC = 4.5 V. These values are specified under recommended operating conditions and verified in the electrical characteristics table-enabling direct drive of heavily loaded buses without external buffers.
Is the SN74ABT16823DGGR pin-compatible with other packages in the ABT16823 family?
The SN74ABT16823DGGR (TSSOP-56) shares identical pinout and functionality with the SSOP-56 (DL) variant, as confirmed by the shared logic diagram, pin numbering, and function table in the datasheet. However, it is not pin-compatible with the ceramic WD package (used for SN54ABT16823), which has different mechanical dimensions and thermal characteristics.
SN74ABT16823DGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 9
- Clock Frequency:
- 150 MHz
- Max Propagation Delay @ V, Max CL:
- 5.5ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 500 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TSSOP
SN74ABT16823DGGR FAQ
1.How can I place an order for SN74ABT16823DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT16823DGGR 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 SN74ABT16823DGGR reliable?
The price and inventory of SN74ABT16823DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT16823DGGR is usually 5 days.
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Once your SN74ABT16823DGGR 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 SN74ABT16823DGGR?
For technical support, including SN74ABT16823DGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT16823DGGR requirements.
6.How does Aetrix verify that SN74ABT16823DGGR is sourced from the original manufacturer or authorized distributors?
All SN74ABT16823DGGR 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 SN74ABT16823DGGR meets industry standards.
7.What is the process for return or replacement of SN74ABT16823DGGR?
All SN74ABT16823DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT16823DGGR, 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 SN74ABT16823DGGR part is unused and in its original packaging.
Return procedure for SN74ABT16823DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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