SN74LS240DWR Integrated Circuit Components Program Memory LCD Controller ICs

SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244

SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244

OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS

3-State Outputs Drive Bus Lines or Buffer Memory Address Registers PNP Inputs Reduce DC Loading Hysteresis at Inputs Improves Noise Margins

Feature

Convert TTL Voltage Levels to MOS Levels

High Sink-Current Capability Input Clamping Diodes Simplify System Design

Open-Collector Driver for Indicator Lamps and Relays

description/ordering information

These octal buffers and line drivers are designed specifically to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical, active-low output-control (G) inputs, and complementary output-control (G and G) inputs. These devices feature high fan-out, improved fan-in, and 400-mV noise margin. The SN74LS’ and SN74S’ devices can be used to drive terminated lines down to 133 Ω.

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