Texas Instruments SN74HC00DTE4

Overview

SN74HC00DTE4 from Texas Instruments is a quadruple 2-input NAND gate IC in SOIC-14 package, operating from 2 V to 6 V supply, delivering 4 independent CMOS logic gates with buffered inputs, ±25 mA output drive, and propagation delay as low as 8 ns at 6 V. It serves as a fundamental combinational logic building block in digital control circuits, S-R latches, and tamper-detect systems.

For engineers reviewing the SN74HC00DTE4 datasheet, SN74HC00DTE4 pinout, SN74HC00DTE4 application, or SN74HC00DTE4 equivalent, key selection considerations include its 14-pin SOIC footprint, guaranteed operation from –40°C to +85°C, fanout capability of up to 10 LSTTL loads, and balanced push-pull output structure enabling reliable interfacing with TTL and CMOS loads.

Technical Context

This device implements four independent positive-logic NAND gates (Y = A ● B) using standard CMOS input structure and balanced push-pull outputs. Each gate features high-impedance inputs with ≤10 pF capacitance and rail-to-rail output swing, supporting direct interfacing with LSTTL and other HC-series logic without level shifting.

The SN74HC00DTE4 operates within strict absolute maximum ratings (e.g., VCC ≤ 7 V, junction temperature ≤ 150°C) and meets JEDEC-standard ESD ratings (±2000 V HBM, ±1000 V CDM). Its switching behavior is characterized by propagation delay (tpd) and transition time (tt), both specified across 2 V–6 V supply and full commercial temperature range.

Key Specifications

Pinout & Package

SN74HC00DTE4 is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package measuring 8.70 mm × 3.90 mm, with standard 1.27 mm pitch and gull-wing leads suitable for surface-mount reflow assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NAND gate applications.

Compared with SN74HCT00D and MC74HC00AD, the SN74HC00DTE4 offers superior noise immunity in CMOS-only systems due to higher input threshold ratios, while maintaining identical board-level compatibility and thermal performance in SOIC-14 mounting.

Availability

SN74HC00DTE4 is available at Aetrix Electronics and suitable for industrial control interfaces, tamper-detection circuits, S-R latch implementations, and legacy logic upgrades requiring stable component supply and long-term manufacturability.

Supply support for SN74HC00DTE4 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 experience in high-reliability logic families.

The SN74HC00DTE4 belongs to TI's 74HC high-speed CMOS logic series, designed specifically for low-power, wide-supply-range digital control and interface applications in industrial, computing, and communications equipment.

FAQ

What is the maximum operating supply voltage for SN74HC00DTE4?

The absolute maximum supply voltage for SN74HC00DTE4 is 7 V, but the recommended operating range is 2 V to 6 V per TI's SCLS181H datasheet. Operation above 6 V risks exceeding absolute maximum ratings and may cause irreversible damage. For reliable long-term use, maintain VCC within 2–6 V, with 5 V being typical for industrial 5 V systems and 3.3 V for mixed-signal microcontroller interfaces. The SN74HC00DTE4's internal structure is optimized for this window.

Does SN74HC00DTE4 support direct connection to TTL logic inputs?

Yes, SN74HC00DTE4 can directly drive standard TTL inputs due to its fanout capability of up to 10 LSTTL loads and output voltage specifications: VOH ≥ 3.98 V at 4.5 V supply with 4 mA sink, and VOL ≤ 0.33 V under same conditions. These values exceed TTL input thresholds (VIH ≥ 2 V, VIL ≤ 0.8 V), ensuring robust logic-level compatibility. However, for systems with marginal noise margins, SN74HCT00D - with TTL-compatible input thresholds - may offer tighter interface assurance.

Can unused inputs on SN74HC00DTE4 be left floating?

No, unused inputs on SN74HC00DTE4 must never be left floating. As a CMOS device, floating inputs cause undefined logic states, increased power consumption, and potential oscillation due to intermediate voltage levels. Per TI's datasheet guidance, each unused input must be tied to either VCC or GND using a direct connection or a pull-up/pull-down resistor (10 kΩ recommended). For example, tying 2A and 2B to GND disables Gate 2 while preserving stability of the entire SN74HC00DTE4 die.

What is the typical propagation delay of SN74HC00DTE4 at 5 V supply?

At VCC = 4.5 V and TA = 25°C, the typical propagation delay (tpd) of SN74HC00DTE4 is 18 ns, with a maximum of 23 ns across the full commercial temperature range (–40°C to +85°C). This value applies to transitions from either input (A or B) to output (Y). At exactly 5 V, interpolation from the 4.5 V and 6 V data points yields ~16–17 ns typical. These delays enable reliable operation in synchronous logic running below 30 MHz, assuming proper layout and load management.

Is SN74HC00DTE4 RoHS compliant and lead-free?

Yes, SN74HC00DTE4 is RoHS compliant and lead-free. Texas Instruments certifies this part under its Green Packaging initiative, meeting EU Directive 2011/65/EU (RoHS 2) and JESD204B requirements. The SOIC-14 package uses matte tin lead finish, and the device carries the "Green" designation in TI's packaging addendum. Full compliance documentation, including substance declarations and test reports, is available via TI's Quality & Environmental page for SN74HC00DTE4.