My Inquiry
My Account
onsemi DM74ALS30AM
- Part No.:
- DM74ALS30AM
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DM74ALS30AM.pdf
- Description:
- IC GATE NAND 1CH 8-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,969
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DM74ALS30AM from Fairchild Semiconductor is a single 8-input NAND gate logic IC in 14-lead SOIC (M14A) package, operating at VCC = 4.5–5.5 V, with tPLH/tPHL ≤ 10/12 ns (CL = 50 pF), IOL = 8 mA sink capability, and guaranteed performance across 0°C to +70°C. It serves as a high-speed combinational logic element in address decoding and bus control circuits.
For engineers reviewing the DM74ALS30AM datasheet, pinout, applications, or equivalent options, key selection criteria include propagation delay under 50 pF load, TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2.0 V), output drive strength, SOIC thermal resistance (θJA = 116.0°C/W), and functional compatibility with 74S30/74LS30 families.
Technical Context
The DM74ALS30AM implements a single 8-input NAND function using advanced oxide-isolated, ion-implanted Schottky TTL process technology. It delivers improved AC performance over standard Schottky and low-power Schottky TTL counterparts while maintaining full DC compatibility.
Its logic behavior is defined by Y = ABCDEFGH (active-low output), with guaranteed switching specifications across the full recommended operating temperature range (0°C to +70°C) and supply voltage range (4.5 V to 5.5 V). Input clamp voltage (VIK = −1.5 V) and output voltage levels (VOH ≥ VCC − 2 V, VOL ≤ 0.5 V at IOL = 8 mA) are specified under standardized test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - ensures stable operation with standard 5 V TTL power rails and ±10% tolerance |
| tPLH / tPHL | 3–10 ns / 3–12 ns - enables high-speed timing-critical logic decisions in address decoders and enable trees |
| IOL / IOH | 8 mA / −0.4 mA - supports direct fan-out to ≥10 standard TTL inputs without buffering |
| VIL / VIH | 0.8 V / 2.0 V - guarantees noise-immune recognition of LOW/HIGH logic states in mixed-TTL systems |
| Operating Temp | 0°C to +70°C - validated for commercial-grade industrial control and computing applications |
| θJA (SOIC) | 116.0°C/W - defines thermal derating limit for continuous operation in compact PCB layouts |
Pinout & Package
DM74ALS30AM is housed in a 14-lead Small Outline Integrated Circuit (SOIC) package per JEDEC MS-012, 0.150" narrow body width, with gull-wing leads and standard 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8 | Inputs A–H | Eight independent TTL-compatible logic inputs accepting 0.8 V/2.0 V threshold levels |
| 9 | Output Y | Active-low NAND output capable of sinking 8 mA or sourcing −0.4 mA |
| 14 | VCC | Positive supply terminal (4.5–5.5 V); must be decoupled locally for noise immunity |
| 7 | GND | Ground reference for all inputs, outputs, and internal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| 8-input NAND logic function | Single-gate implementation reduces board space vs. cascaded 2-/3-input alternatives |
| Guaranteed AC specs at 50 pF | Ensures predictable timing in real-world PCB trace and load conditions |
| Full temp/VCC range validation | Eliminates need for design margining in commercial-temperature environments |
| Pin-for-pin compatible with 74S30/74LS30 | Enables drop-in upgrade path from legacy Schottky and LS families without layout change |
| Oxide-isolated Schottky TTL process | Delivers higher speed and lower power than standard TTL, with robust ESD tolerance |
Applications
| Memory Address Decoding | Bus Enable Control |
|---|---|
Use Scenario: Selecting one of multiple memory banks based on upper address bits in 8-bit microprocessor systems. IC Role / Device Role / Timing Role: 8-input NAND gate acting as final-stage decoder enabling chip-select signals. Use Value: Single DM74ALS30AM replaces multi-level NAND/NOR trees, reducing propagation delay by up to 25% and component count. | Use Scenario: Enabling data bus transceivers only when valid address and control signals align. IC Role / Device Role / Timing Role: Logic arbiter combining RD, WR, I/O select, and address lines to assert bus-enable. Use Value: Guaranteed 12 ns max tPHL ensures synchronous bus activation within 8085/8086 timing windows. |
| Priority Interrupt Encoder | System Reset Coordination |
Use Scenario: Encoding highest-priority active interrupt line (IRQ0–IRQ7) into 3-bit vector in legacy controllers. IC Role / Device Role / Timing Role: Active-low NAND detecting first asserted IRQ to trigger priority resolution logic. Use Value: Sub-10 ns propagation enables deterministic response in real-time interrupt latency budgets. | Use Scenario: Generating master reset pulse only when power stabilizes, watchdog timeout occurs, and manual reset is pressed. IC Role / Device Role / Timing Role: Final-stage combinatorial gate requiring all three conditions LOW to assert reset. Use Value: TTL-compatible input thresholds ensure reliable detection of debounced switch and power-good signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALS30N | Same logic function and electrical specs; PDIP package (N14A) instead of SOIC (M14A) | Through-hole assembly required; higher θJA (86.5°C/W) but better mechanical stability | Select for prototyping, legacy rework, or wave-soldered industrial boards |
| MC74ALS30N | Identical AC/DC parameters; manufactured by ON Semiconductor post-Fairchild acquisition; same PDIP footprint | No functional difference; long-term availability supported via ON Semi's active product roadmap | Select for new designs requiring assured multi-year supply continuity |
Compared with SN74ALS30N and MC74ALS30N, the DM74ALS30AM offers surface-mount compatibility and higher thermal resistance-favoring compact, automated production-while retaining identical logic behavior and timing, making it optimal for space-constrained commercial control boards.
Availability
DM74ALS30AM is available at Aetrix Electronics and suitable for memory decoding, bus control, interrupt encoding, and system reset coordination requiring stable component supply and commercial-temperature reliability.
Supply support for DM74ALS30AM 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 US-based analog and discrete semiconductor manufacturer, acquired by ON Semiconductor in 2016; known for high-reliability TTL, analog switches, and power management ICs.
The DM74ALS30AM belongs to the 74ALS (Advanced Low-Power Schottky) logic family, designed specifically for high-speed, low-power digital systems where fan-out, noise immunity, and timing predictability are critical.
FAQ
What logic function does the DM74ALS30AM implement?
The DM74ALS30AM implements a single 8-input NAND gate, where the output Y is LOW only when all eight inputs (A–H) are HIGH; otherwise, the output is HIGH. This Boolean function is expressed as Y = ABCDEFGH. The DM74ALS30AM performs this exact logic operation using oxide-isolated Schottky TTL technology, with verified truth table behavior across its full operating range.
Is the DM74ALS30AM pin-compatible with other 74-series 8-input NAND gates?
Yes, the DM74ALS30AM is pin-for-pin compatible with the 74S30 and 74LS30 8-input NAND gates in the same 14-lead SOIC (M14A) or PDIP (N14A) packages. Its pinout matches industry-standard 74xx30 devices: inputs on pins 1–8, output on pin 9, VCC on pin 14, and GND on pin 7. This allows direct substitution in existing designs without PCB modification.
What are the absolute maximum ratings for the DM74ALS30AM?
The DM74ALS30AM has an absolute maximum supply voltage of 7 V, input voltage limit of 7 V, operating free-air temperature range of 0°C to +70°C, and storage temperature range of −65°C to +150°C. Exceeding these values may cause permanent damage. These limits are distinct from recommended operating conditions (VCC = 4.5–5.5 V, TA = 0–70°C), under which all electrical specifications for the DM74ALS30AM are guaranteed.
Does the DM74ALS30AM support mixed-voltage interfacing?
No, the DM74ALS30AM is a 5 V-only TTL device with fixed input thresholds (VIL = 0.8 V, VIH = 2.0 V) and output levels referenced to VCC = 4.5–5.5 V. It does not support 3.3 V or 2.5 V logic families directly. Interfacing with lower-voltage systems requires level-shifting circuitry; the DM74ALS30AM itself operates strictly within standard TTL voltage domains.
How does the thermal performance of the DM74ALS30AM compare between package types?
The DM74ALS30AM in SOIC (M14A) package has a junction-to-ambient thermal resistance (θJA) of 116.0°C/W, higher than the PDIP version (e.g., DM74ALS30AN) at 86.5°C/W. This means the SOIC variant heats up more under identical power dissipation. Designers must apply appropriate copper pour and airflow for the DM74ALS30AM in high-density layouts to maintain junction temperature within 0–70°C limits.
DM74ALS30AM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74ALS
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 8
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- 400µA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 12ns @ 5V, 50pF
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
DM74ALS30AM FAQ
1.How can I place an order for DM74ALS30AM through Aetrix?
Please submit a Request for Quotation (RFQ) for DM74ALS30AM 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 DM74ALS30AM reliable?
The price and inventory of DM74ALS30AM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM74ALS30AM is usually 5 days.
3.What payment methods are accepted for DM74ALS30AM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM74ALS30AM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM74ALS30AM?
DM74ALS30AM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM74ALS30AM 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 DM74ALS30AM?
For technical support, including DM74ALS30AM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM74ALS30AM requirements.
6.How does Aetrix verify that DM74ALS30AM is sourced from the original manufacturer or authorized distributors?
All DM74ALS30AM 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 DM74ALS30AM meets industry standards.
7.What is the process for return or replacement of DM74ALS30AM?
All DM74ALS30AM units undergo pre-shipment inspection (PSI). If there is an issue with DM74ALS30AM, 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 DM74ALS30AM part is unused and in its original packaging.
Return procedure for DM74ALS30AM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM74ALS30AM Tags
-
SN74LVC1G14DBVR
Texas Instruments
-
SN74LVC1G14DCKR
Texas Instruments
-
SN74AHC1G14DBVR
Texas Instruments
-
SN74LVC1G08DBVR
Texas Instruments
-
SN74LVC1G08DCKR
Texas Instruments
-
SN74LVC1G32DCKR
Texas Instruments
-
SN74LVC1G04DBVR
Texas Instruments
.jpg)
-
74LVC1G08GW,125
Nexperia USA Inc.
-
SN74LVC1G04DCKR
Texas Instruments
-
SN74AHC1G08DBVR
Texas Instruments
-
SN74LVC1G32DBVR
Texas Instruments
-
SN74AHCT1G08DBVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
