onsemi DM74ALS1034N

Overview

DM74ALS1034N from Fairchild Semiconductor is a hex non-inverting driver IC implementing six independent logic identity functions, with 24 mA low-level output drive, 15 mA high-level output sink capability, and guaranteed 1–8 ns propagation delay (tPLH/tPHL) at 50 pF load across 0°C to +70°C. It operates from 4.5 V to 5.5 V VCC and is used in TTL-level bus buffering and signal fan-out applications.

For engineers reviewing the DM74ALS1034N datasheet, pinout, applications, or equivalent options, key selection criteria include its PDIP-14 package, Schottky TTL-compatible logic levels, 24 mA IOL drive strength, and guaranteed AC performance over full temperature and supply range.

Technical Context

The DM74ALS1034N uses an advanced oxide-isolated, ion-implanted Schottky TTL process to achieve improved AC performance versus standard Schottky and Low Power Schottky TTL counterparts. It delivers identical logic behavior (Y = A) across all six channels with no internal inversion or enable control.

All six drivers operate simultaneously under identical recommended conditions: VCC = 4.5–5.5 V, TA = 0°C to +70°C, and CL = 50 pF. Input thresholds are VIH ≥ 2.0 V and VIL ≤ 0.8 V; output voltage compliance is VOH ≥ 2.4 V (at IOH = −3 mA) and VOL ≤ 0.4 V (at IOL = 12 mA).

Key Specifications

Pinout & Package

DM74ALS1034N is housed in a 14-lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" wide, with through-hole mounting and standard 0.1" pin pitch. Thermal resistance θJA is 76.0°C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex non-inverting driver applications.

Compared with SN74ALS1034N, the DM74ALS1034N offers identical functionality and timing but differs in manufacturer qualification and lot traceability; compared with DM74LS1034N, it delivers 3× higher output drive and >40% faster propagation-critical for maintaining signal integrity in dense, high-speed backplane layouts.

Availability

DM74ALS1034N is available at Aetrix Electronics and suitable for industrial control backplanes, legacy computer bus interfaces, and test equipment signal conditioning requiring stable component supply and long-term obsolescence management.

Supply support for DM74ALS1034N 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 U.S.-based semiconductor company specializing in analog and mixed-signal ICs, power management, and logic families before its acquisition by ON Semiconductor in 2016.

The DM74ALS1034N belongs to Fairchild's Advanced Low-Power Schottky (ALS) TTL logic family, engineered for higher speed and lower power than standard LS TTL while maintaining full compatibility with existing TTL system designs.

FAQ

What logic function does the DM74ALS1034N implement?

The DM74ALS1034N implements six independent non-inverting logic identity functions (Y = A). Each of its six channels passes the input signal unchanged-HIGH in yields HIGH out, LOW in yields LOW out-with no inversion, enable control, or open-collector configuration. This makes the DM74ALS1034N ideal for simple signal buffering and fan-out expansion in TTL-based systems.

Is the DM74ALS1034N pin-compatible with other TTL hex drivers?

Yes, the DM74ALS1034N is functionally and pin-for-pin compatible with Schottky (74S1034) and Low Power Schottky (74LS1034) hex non-inverting drivers. Its 14-pin PDIP layout matches industry-standard pin assignments: inputs on pins 1, 3, 4, 5, 9, 10; outputs on pins 2, 6, 7, 8, 12, 13; VCC on pin 14; GND on pin 7. This allows direct replacement in legacy designs without PCB modification.

What is the maximum output current capability of the DM74ALS1034N?

The DM74ALS1034N provides 24 mA of low-level output current (IOL) and can sink up to 24 mA while maintaining VOL ≤ 0.4 V at 12 mA load. Its high-level output current (IOH) is rated at −15 mA, ensuring VOH ≥ 2.4 V under that condition. These values are guaranteed across the full operating temperature and supply voltage range (0°C to +70°C, VCC = 4.5–5.5 V), making the DM74ALS1034N suitable for driving multiple TTL inputs or moderate-current loads.

Does the DM74ALS1034N require external pull-up resistors on its outputs?

No, the DM74ALS1034N features totem-pole (push-pull) outputs-not open-collector-so external pull-up resistors are not required. Each output actively drives both HIGH and LOW states, delivering VOH ≥ 2.4 V (at IOH = −3 mA) and VOL ≤ 0.4 V (at IOL = 12 mA). This simplifies board design and eliminates timing uncertainty introduced by RC time constants from external pull-ups.

What is the thermal performance of the DM74ALS1034N in its PDIP package?

The DM74ALS1034N in the N14A PDIP package has a typical junction-to-ambient thermal resistance (θJA) of 76.0°C/W. At maximum rated ICC (14 mA) and worst-case VCC (5.5 V), power dissipation remains below 80 mW, resulting in negligible junction temperature rise under normal PCB mounting conditions. No heatsinking is required for standard commercial operation.