SN74ABT244ANSR

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SN74ABT244ANSR

IC BUFFER NON-INVERT 5.5V 20SO

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規格

Supplier Texas Instruments
Package Tape & Reel (TR),Cut Tape (CT)
Series 74ABT
ProductStatus Active
LogicType Buffer, Non-Inverting
NumberofElements 2
NumberofBitsperElement 4
OutputType 3-State
Current-OutputHighLow 32mA, 64mA
Voltage-Supply 4.5V ~ 5.5V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 20-SOIC (0.209, 5.30mm Width)

概述

Description

The SN74ABT244ANSR is an 8-bit buffer/line driver with 3-state outputs from TI. It buffers eight data lines (A1–A8) to eight outputs (Y1–Y8) with two independent enables (1OE and 2OE) that tri-state the two 4-bit groups. It is non-inverting and designed for high-speed, low-power CMOS with TTL-compatible inputs (ABT family). Supply voltage is 2.0–5.5 V, making it suitable for 5V and 3.3V systems. Typical uses include buffering data/address buses, bus isolation, and microprocessor/memory interfaces. The device is available in standard TI packages (including 20-pin surface-mount options); the ANSR suffix denotes a specific TI package/reel option.

Features

Here are the main features of SN74ABT244ANSR:
- Octal buffer/line driver with 3-state outputs (8 bits)
- Two 4-bit buffers with separate active-low enables (OE1 and OE2)
- Unidirectional data flow: A inputs to Y outputs
- Advanced ABT CMOS technology for low power
- Wide supply voltage range: 2.0 V to 5.5 V
- TTL/CMOS-compatible inputs
- Outputs go high-impedance when disabled (bus-sharing capable)
- Ioff support for partial-power-down protection
- ESD protection (typical) and robust packaging options (SN74ABT244ANSR)

Package

NSR is TI’s code for the Shrink Small‑Outline Package (a 20‑pin SOIC/SSOP‑style package) for the SN74ABT244AN.

Pinout

Pin count: 20 pins.
Function: Octal buffer/line driver with 3-state outputs (non-inverting). It contains two 4-bit buffers (A1–A8 to Y1–Y8) with separate active-low output enables (1OE and 2OE). When OE is low, the corresponding four outputs drive; when high, those outputs are high-impedance.

Manufacturer

Manufacturer: Texas Instruments (TI).
What kind of company: TI is an American multinational technology and semiconductor company that designs and manufactures a wide range of integrated circuits, analog and digital semiconductors, sensors, and related electronic components for global markets.

Application

SN74ABT244AN is an octal noninverting buffer/line driver with two 4-bit sections and tri-state outputs. Applications: buffering data/address busses between processors, memory, and peripherals; bus driving with enables to share a common bus; level shifting and impedance matching for high-speed digital systems; driving ancillary devices (LCDs, DACs, ADCs) by isolating parasitics; signal conditioning and fan-out expansion in microprocessor-based systems; backplanes/instrumentation data paths.

Equivalent

Equivalent products to SN74ABT244ANSR (8-bit buffer/line driver, 3-state outputs, ABT family):
- MC74ABT244A (ON Semiconductor)
- 74ABT244AN (NXP/Philips)
- uPD74ABT244AN (Renesas)
- TC74ABT244AP (Toshiba)
- IDT74ABT244A (IDT)
Note: these are functionally equivalent in the 74ABT244A family; check voltage, speed, and pin/package compatibility for your design.

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