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SN74LS30N

Name: SN74LS30N
Rating: 4.7 (12 reviews)

IC GATE NAND 1CH 8-INP 14DIP

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資料表 SN74LS30N DataSheet
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規格

Supplier	Rochester Electronics, LLC
Package	Tube
Series	74LS
ProductStatus	Obsolete
LogicType	NAND Gate
NumberofCircuits	1
NumberofInputs	8
Voltage-Supply	4.75V ~ 5.25V
Current-Quiescent(Max)	500 µA
Current-OutputHighLow	400µA, 8mA
LogicLevel-Low	0.8V
LogicLevel-High	2V
MaxPropagationDelay@VMaxCL	20ns @ 5V, 15pF
OperatingTemperature	0°C ~ 70°C
MountingType	Through Hole
SupplierDevicePackage	14-PDIP

概述

Description

SN74LS30N is an 8-input NAND gate from the 74LS (low-power Schottky TTL) family. It has an open-collector output, so you must provide a pull-up resistor to get a valid logic-high. The output follows Y = NOT(A1 AND A2 AND A3 AND A4 AND A5 AND A6 AND A7 AND A8). Supply is 5 V (typical 4.75–5.25 V); TTL input thresholds: VIH ~ 2.0 V, VIL ~ 0.8 V. Package: DIP-14 (the N suffix denotes the DIP package). Uses include multi-input gating, decoders, and wired-AND networks where multiple open-collector outputs can be tied together with pull-ups. Important: without pull-ups the output cannot source current. The LS family offers moderate speed and low power in this 8-input NAND configuration.

Features

SN74LS30N features:
- 8-input NOR gate (LS TTL)
- Open-collector outputs (requires external pull-up; allows wired-OR)
- 5V supply (4.75–5.25 V)
- LS TTL technology (low power, Schottky-clamped)
- DIP-14 package (SN74LS30N)
- TTL-compatible inputs; standard commercial temperature range (0°C–70°C)
- Widely used for gating and wired-OR applications in 5V logic systems

Package

Plastic DIP (PDIP), 14-pin package (through-hole).

Pinout

- Pin count: 14-pin DIP (SN74LS30N)
- Function: 8-input NAND gate with open-collector outputs. Output Y = NOT(A1 AND A2 AND ... AND A8); requires an external pull-up resistor.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational semiconductor company that designs, manufactures, and markets analog and digital integrated circuits and other electronic components.

Application

SN74LS30N is an 8-input NAND gate (TTL). Applications:
- High fan-in gating for combinational logic (e.g., address decoding, chip select, enable gating)
- Combining multiple control signals into a single NAND output
- Wired-AND/OR bus interfaces with pull-up resistors (using open-collector style approaches)
- Cascading to realize larger logic functions across buses and decoders.

Equivalent

SN74LS30N is an octal (8-input) NAND gate with open-collector outputs in the 74LS TTL family. Equivalents are other manufacturers’ 8-input NAND gates in the 74LS/ALS families. Common equivalents: Philips/NXP 74LS30, ON Semiconductor 74LS30, Renesas μPD74LS30, Toshiba TC74LS30, NEC μPD74LS30, Fairchild MM74LS30. Packaging varies (DIP/SOIC). Note: outputs are open-collector, so pull-up resistors are required.