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STMicroelectronics 74AC00TTR
- Part No.:
- 74AC00TTR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AC00TTR.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,732
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Product details
Overview
74AC00TTR from STMicroelectronics is a quad 2-input NAND gate IC in TSSOP-14 package, operating from 2V to 6V supply, delivering 4ns typical propagation delay at 5V, ±24mA symmetrical output drive, and 2µA max quiescent current at 25°C - used in high-speed digital logic interfacing, address decoding, and control signal conditioning in industrial PLC I/O modules.
For engineers reviewing the 74AC00TTR datasheet, 74AC00TTR pinout, 74AC00TTR application, or 74AC00TTR equivalent, key selection criteria include transmission-line driving capability (50Ω), latch-up immunity, ESD tolerance (2kV), and compatibility with legacy 74-series logic families under wide-voltage operation.
Technical Context
The 74AC00TTR implements four independent NAND gates using sub-micron C2MOS technology with three-stage buffered outputs, enabling stable switching and high noise immunity (VIH/VIL = 28% VCC min). Its symmetrical output impedance ensures matched tPLH ≈ tPHL propagation delays across all gates.
It supports incident-wave switching on 50Ω transmission lines and meets stringent DC/AC specs across -55°C to +125°C, with input rise/fall time sensitivity of 8 ns/V and guaranteed operation at VCC = 3.3V ±0.3V and 5.0V ±0.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - enables interoperability with 3.3V and 5V systems without level shifters |
| tPD (Typ) | 4ns at VCC = 5V - supports >100 MHz toggle rates in combinatorial logic paths |
| IOL / IOH | ±24mA min - drives 50Ω transmission lines directly with clean edge integrity |
| ICC (Max) | 2µA at TA = 25°C - suitable for low-power standby modes in battery-backed controllers |
| VNIH / VNIL | 28% VCC min - provides robust noise margin against crosstalk in dense PCB layouts |
| ESD Rating | 2kV HBM - protects inputs during handling and board-level transient events |
| Operating Temp | -55°C to +125°C - qualified for under-hood automotive and industrial motor-control environments |
Pinout & Package
TSSOP-14 package: 4.9–5.1 mm width, 6.25–6.5 mm length, 0.65 mm pitch, 0.5–0.7 mm lead length, JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | Input A (Gate 1–4) | Active-high logic input; accepts 0–VCC voltage range with 2kV ESD protection |
| 2, 5, 10, 13 | Input B (Gate 1–4) | Second active-high input per NAND gate; VIH/VIL thresholds track VCC proportionally |
| 3, 6, 8, 11 | Output Y (Gate 1–4) | Push-pull CMOS output; delivers ±24mA into 50Ω loads with matched rise/fall symmetry |
| 7 | GND | Reference ground plane connection; decoupling capacitor placement critical for noise immunity |
| 14 | VCC | Positive supply rail; requires local 100nF ceramic bypass near pin for high-speed switching stability |
Key Features
| Feature | Design Value |
|---|---|
| Quad 2-input NAND function | Four independent gates in single TSSOP-14 footprint - reduces board space vs discrete solutions |
| 50Ω transmission-line drive | Guaranteed incident-wave switching on 50Ω traces - eliminates need for external series termination |
| Pin- and function-compatible with 74-series 00 | Drop-in replacement for legacy 74LS00/74HC00 in existing designs without layout change |
| Improved latch-up immunity | Robust against parasitic SCR triggering during supply transients - critical for noisy industrial rails |
| Buffered 3-stage output | Stable output waveform with minimized ringing and overshoot under capacitive loading |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Signal conditioning of discrete sensor inputs (e.g., door switch, seatbelt latch) before microcontroller sampling. IC Role / Device Role / Timing Role: NAND gate used as active-low enable shaper and noise-filtering combinatorial logic block. Use Value: 28% VCC noise margin rejects EMI from 12V solenoid switching; 125°C rating ensures reliability near engine bays. | Use Scenario: Address decoding for EEPROM and CAN transceiver peripheral selection on shared bus. IC Role / Device Role / Timing Role: Combinatorial logic element generating chip-select signals synchronized to MCU clock domain. Use Value: 4ns tPD enables tight timing budgets in 20MHz bus cycles; ±24mA drive sustains signal integrity over 15cm traces. |
| Medical Infusion Pump Controllers | Test & Measurement Equipment |
Use Scenario: Interlock logic between motor enable, occlusion sensor, and keypad input to prevent unsafe actuation. IC Role / Device Role / Timing Role: Safety-critical NAND-based combinational gate implementing hardware-enforced AND-NOT logic. Use Value: 2kV HBM ESD rating prevents field failure during clinical handling; -55°C to 125°C range covers sterilization thermal cycling. | Use Scenario: Clock gating and trigger signal arbitration in multi-channel oscilloscope front-end logic. IC Role / Device Role / Timing Role: High-speed logic gate synchronizing ADC sample strobes with analog multiplexer switching. Use Value: Matched tPLH/tPHL ensures <0.5ns skew between parallel channels; 50Ω drive maintains signal fidelity at 100MHz edges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AC00PW | TSSOP-14, identical AC/DC specs, TI's characterization includes 3.3V-only test conditions | Limited -55°C spec; not qualified for extended temperature industrial use | Prefer for cost-sensitive 3.3V-only designs where full temp range not required |
| 74HC00PW | Slower tPD (15ns typ at 5V), lower drive (±4mA), narrower VCC range (2–6V but no 3.3V AC characterization) | Not suitable for 50Ω line driving or >20MHz logic paths | Select only for ultra-low-power static logic where speed and drive are secondary |
Compared with SN74AC00PW and 74HC00PW, the 74AC00TTR uniquely combines full -55°C to +125°C qualification, 4ns speed, and 50Ω transmission-line drive - making it the only choice for high-reliability, high-speed industrial and automotive control logic.
Availability
74AC00TTR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, medical infusion pump controllers, and test & measurement equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AC00TTR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power management ICs, sensors, and logic devices for industrial, automotive, and consumer markets.
The 74AC00TTR belongs to ST's advanced CMOS logic family, engineered specifically for high-speed, low-power, and high-noise-immunity digital interfacing in harsh electromagnetic environments.
FAQ
Is 74AC00TTR compatible with 3.3V microcontroller I/O levels?
Yes. The 74AC00TTR operates down to 2V and is fully specified at 3.3V ±0.3V, with VIH = 2.1V min and VIL = 1.5V max at that voltage - ensuring reliable interfacing with standard 3.3V CMOS logic without level translation.
Does 74AC00TTR require external pull-up or pull-down resistors on unused inputs?
No. Unused inputs must be tied to VCC or GND to prevent floating states and increased ICC, but no external resistors are needed - internal input structure is CMOS with negligible leakage (±0.1µA), and inputs tolerate 0–VCC voltage range safely.
Can 74AC00TTR drive a 50Ω coaxial cable directly?
Yes. Its ±24mA output drive and symmetrical impedance are explicitly characterized for incident-wave switching on 50Ω transmission lines, eliminating the need for external series termination resistors in point-to-point routing.
What is the maximum recommended input rise/fall time for reliable operation?
The device specifies dt/dv ≤ 8 ns/V at VCC = 3.0/4.5/5.5V, meaning input edges slower than ~25 ns (for 3.3V swing) avoid false triggering. For clean 4ns propagation, keep tr/tf ≤ 3ns as tested in AC characterization.
74AC00TTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74AC
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.9V ~ 1.65V
- Input Logic Level - High:
- 2.1V ~ 3.85V
- Max Propagation Delay @ V, Max CL:
- 8ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74AC00TTR FAQ
1.How can I place an order for 74AC00TTR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AC00TTR 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 74AC00TTR reliable?
The price and inventory of 74AC00TTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AC00TTR is usually 5 days.
3.What payment methods are accepted for 74AC00TTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AC00TTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AC00TTR?
74AC00TTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AC00TTR 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 74AC00TTR?
For technical support, including 74AC00TTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AC00TTR requirements.
6.How does Aetrix verify that 74AC00TTR is sourced from the original manufacturer or authorized distributors?
All 74AC00TTR 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 74AC00TTR meets industry standards.
7.What is the process for return or replacement of 74AC00TTR?
All 74AC00TTR units undergo pre-shipment inspection (PSI). If there is an issue with 74AC00TTR, 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 74AC00TTR part is unused and in its original packaging.
Return procedure for 74AC00TTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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