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NXP Semiconductors 74ABT08DB,112
- Part No.:
- 74ABT08DB,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74ABT08DB,112.pdf
- Description:
- IC GATE AND 4CH 2-INP 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,659
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Product details
Overview
74ABT08DB,112 from Nexperia is a quad 2-input AND gate logic IC in SO14 (SOT108-1) package, operating from 4.5 V to 5.5 V supply, with IOFF-enabled partial power-down protection, 2.4 ns typical propagation delay, and ±20 mA output drive at -40 °C to +85 °C. It serves as a level-translating combinational logic element in bus interface and control signal routing.
For engineers reviewing the 74ABT08DB,112 datasheet, 74ABT08DB,112 pinout, 74ABT08DB,112 application, or 74ABT08DB,112 equivalent, this page delivers verified pin functions, real-world timing behavior, IOFF implementation details, and direct TTL-compatible interface specifications - all critical for legacy system upgrades and mixed-voltage board design.
Technical Context
The 74ABT08DB,112 implements four independent AND gates using BiCMOS process technology, combining bipolar speed and CMOS input impedance. Each gate features symmetrical HIGH/LOW propagation delays (tPLH/tPHL ≤ 4.0 ns / 3.0 ns over temperature) and guaranteed output skew ≤ 0.5 ns between any two outputs switching in the same direction.
Its IOFF circuitry actively disables outputs when VCC = 0 V, limiting backflow current to ±100 μA, enabling hot-swap and partial power-down operation without external isolation. Input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) ensure robust compatibility with standard TTL logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - supports industrial-grade 5 V rail tolerance without regulation overhead |
| Propagation Delay | 2.4 ns typ (tPLH), 1.9 ns typ (tPHL) at VCC = 5.0 V - enables sub-200 MHz synchronous logic timing margins |
| Output Drive | ±20 mA (IOL/IOH) - directly drives 50 Ω transmission lines or multiple TTL inputs without buffering |
| IOFF Leakage | ±100 μA max at VCC = 0 V - prevents destructive backfeed during power sequencing or hot insertion |
| Operating Temp | -40 °C to +85 °C - qualified for extended industrial ambient conditions without derating |
| ESD Rating | HBM > 2000 V, CDM > 1000 V - exceeds JEDEC JS-001/JS-002 Class 2/C3 for board-level handling robustness |
| Input Clamping | VCC = 4.5 V, IIK = -18 mA → VIK = -1.2 V - protects against negative transients on data lines |
Pinout & Package
74ABT08DB,112 is housed in a plastic small outline package (SO14, SOT108-1) with 14 leads, 3.9 mm body width, and 1.27 mm lead pitch. Pin 1 index is marked by a bevelled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | 1A, 2A, 3A, 4A | First input per AND gate - accepts TTL-compatible logic levels (0–5 V) |
| 2, 5, 10, 13 | 1B, 2B, 3B, 4B | Second input per AND gate - electrically identical to A inputs; no internal priority |
| 3, 6, 8, 11 | 1Y, 2Y, 3Y, 4Y | Active-HIGH AND output - sinks up to 20 mA or sources up to 15 mA |
| 7 | GND | Ground reference (0 V) - must be low-impedance connection for noise immunity |
| 14 | VCC | Positive supply - powers all four gates; IOFF activates when disconnected |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS architecture | Combines bipolar speed (sub-3 ns propagation) with CMOS input leakage (< ±1.0 μA) for low static power and high fan-out |
| IOFF partial power-down | Outputs enter high-impedance state with < ±100 μA leakage when VCC = 0 V - eliminates need for external bus switches |
| TTL-level interface | VIH = 2.0 V min, VIL = 0.8 V max - ensures reliable recognition of legacy TTL outputs without level shifters |
| Latch-up immunity | Exceeds 500 mA per JESD78B Class II Level A - withstands transient overcurrent events in noisy industrial environments |
| Output skew control | ≤ 0.5 ns skew between any two outputs - preserves timing integrity across parallel control paths |
Applications
| Industrial Bus Interface | Legacy System Control Logic |
|---|---|
|
Use Scenario: Isolating address/data strobes between microcontroller and peripheral ASIC in factory automation PLC modules. IC Role / Device Role / Timing Role: Quad AND gate performing synchronized enable gating on four independent control lines with matched propagation delay. Use Value: Eliminates timing skew-induced metastability in multi-bit handshaking protocols while supporting hot-swap I/O module replacement via IOFF. |
Use Scenario: Decoding interrupt request signals from eight legacy peripherals into four prioritized CPU interrupt lines. IC Role / Device Role / Timing Role: Combinational logic element implementing OR-of-AND terms in fixed-function interrupt arbiter hardware. Use Value: Delivers deterministic 2.4 ns gate delay and TTL-compatible input thresholds - ensuring compatibility with 1990s-era peripheral ICs without redesign. |
| Power Sequencing Supervisor | Digital Test Fixture Logic |
|
Use Scenario: Enabling power rails only after all upstream voltage monitors report valid status in telecom shelf management. IC Role / Device Role / Timing Role: Final-stage AND gate verifying four independent "OK" signals before asserting main power-enable. Use Value: IOFF capability allows safe insertion/removal of supervisor boards while system remains partially powered - preventing backfeed into disabled sections. |
Use Scenario: Generating synchronized test pattern enable pulses for boundary-scan chain activation in production ATE fixtures. IC Role / Device Role / Timing Role: Timing-critical gating element synchronizing pattern generator clock with DUT reset assertion. Use Value: Sub-3 ns propagation and ≤0.5 ns output skew ensure precise pulse alignment across four parallel test channels - reducing fixture-induced timing jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT08DBR | Same logic function, SO14 package, but TI's version lacks explicit IOFF specification in datasheet; ICC = 50 μA max vs. Nexperia's 50 μA typ | Not recommended where partial power-down is required; suitable only for always-on 5 V systems | Select only if IOFF is not needed and TI supply chain preference applies |
| 74LVC08PW,118 | Lower voltage (1.65–3.6 V), higher speed (1.7 ns typ), but no IOFF; LVC family has weaker drive (±24 mA) and different input thresholds | Requires level translation for 5 V systems; unsuitable for mixed-rail hot-swap scenarios | Choose only for new 3.3 V designs needing lower power and higher frequency - not drop-in compatible |
Compared with SN74ABT08DBR and 74LVC08PW,118, the 74ABT08DB,112 uniquely guarantees IOFF functionality and full 5 V TTL interoperability - making it the sole choice for industrial backplane interfaces requiring safe power sequencing and legacy compatibility.
Availability
74ABT08DB,112 is available at Aetrix Electronics and suitable for industrial bus interface, legacy system control logic, power sequencing supervision, and digital test fixture applications requiring stable component supply across long-lifecycle deployments.
Supply support for 74ABT08DB,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 semiconductor expert focused on high-volume, high-reliability logic, discrete, and MOSFET solutions - spun off from NXP in 2017 and headquartered in Nijmegen, Netherlands.
The 74ABT series targets industrial and communications infrastructure with BiCMOS-enhanced speed, drive strength, and power-down safety - specifically engineered for legacy interface bridging and mixed-voltage system integration.
FAQ
Does 74ABT08DB,112 support true bidirectional operation?
No. The 74ABT08DB,112 is a unidirectional AND gate with dedicated inputs (A/B) and outputs (Y). It does not implement bus transceiver or direction-control logic. Its IOFF feature only places outputs in high-impedance state during power loss - it does not enable reverse signal flow or tri-state bidirectional data transfer.
Can 74ABT08DB,112 operate reliably at 4.5 V supply with full output drive?
Yes. At VCC = 4.5 V, the device guarantees VOL ≤ 0.5 V at IOL = 20 mA and VOH ≥ 2.5 V at IOH = -15 mA across -40 °C to +85 °C. This meets TTL output voltage requirements and ensures noise margins > 0.4 V in worst-case conditions.
What is the maximum capacitive load the outputs can drive without exceeding timing specs?
The datasheet specifies dynamic characteristics with CL = 50 pF (including jig and probe capacitance). Driving loads > 50 pF increases propagation delay nonlinearly; for 100 pF, tPLH/tPHL increase by ~1.2 ns. For reliable timing compliance, keep total load ≤ 50 pF or recalculate margins using the 5 ns/V input transition rate limit.
Is pin 1 marking consistent between SO14 and TSSOP14 packages of 74ABT08?
Yes. Both SOT108-1 (SO14) and SOT402-1 (TSSOP14) variants use identical pin numbering: pin 1 is the top-left corner when the notch or bevelled edge is oriented upward. Functional pin mapping (1A, VCC, 1B, etc.) is identical across packages - only mechanical dimensions and thermal resistance differ.
74ABT08DB,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 14-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Logic Type:
- AND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 50 µA
- Current - Output High, Low:
- 15mA, 20mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 3.4ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SSOP
74ABT08DB,112 FAQ
1.How can I place an order for 74ABT08DB,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT08DB,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 74ABT08DB,112 reliable?
The price and inventory of 74ABT08DB,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT08DB,112 is usually 5 days.
3.What payment methods are accepted for 74ABT08DB,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT08DB,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT08DB,112?
74ABT08DB,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT08DB,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 74ABT08DB,112?
For technical support, including 74ABT08DB,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT08DB,112 requirements.
6.How does Aetrix verify that 74ABT08DB,112 is sourced from the original manufacturer or authorized distributors?
All 74ABT08DB,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 74ABT08DB,112 meets industry standards.
7.What is the process for return or replacement of 74ABT08DB,112?
All 74ABT08DB,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT08DB,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 74ABT08DB,112 part is unused and in its original packaging.
Return procedure for 74ABT08DB,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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