MM74HC244SJX

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The MM74HC244SJX is a high-speed CMOS Logic 8-bit Buffer/Driver designed to provide high-drive outputs for applications requiring higher than the normal 15 mA output currents and operation at high clock frequencies. It is part of a series of high speed, low-voltage, small-sized CMOS devices. This series of device uses advanced CMOS technology to achieve operating speeds similar to low-power Schottky TTL with the low power consumption of standard CMOS integrated circuits. It belongs to the family of Logic - Buffers, Drivers, Receivers, Transceivers.

MM74HC244SJX is capable of driving large 15 mA sink currents while requiring low power (maximum 10 μA ICC). Its low input currents allow the parts to be used with 3.3V VCC or lower. Its outputs are compatible with most TTL Series Logic inputs. This device is well suited for the multiplexing address, Data and control and utilizes TTL Series or 5V CMOS Logic.

MM74HC244SJX Application Fields:

• Databus Buffers and Drivers
• High Speed Multiplexers and Demultiplexers
• High Speed Bus Transceivers (Low-level Output)
• Memory Address Decoders
• Interface and Control of Externally Driven Signals

The MM74HC244SJX working principle is fairly straightforward. It has eight digital inputs and eight outputs. It buffers the eight individual digital inputs and the eight outputs are driven from the eight inputs to form a bidirectional 8-bit buffer. This means that the outputs of the device reflect the status of the inputs (either low or high). Each output has an enable pin (OE) that can be used to disable the output. If power is removed, the outputs will float.

In terms of voltage levels, this device operates within the range of 1.65V to 5.5V with a maximum power supply current of 10μA. Its data transfer rate switching time is around 8 ns and its off-state output voltage is 0.1V or less. Its output driver resistance is 56 ohms maximum with a maximum rating of 15 mA sink current.

The MM74HC244SJX is a versatile logic buffer and driver that can be used in a wide range of applications. Its wide operating range and low power consumption makes it suitable for use in both 5V and 3.3V systems. It is an ideal device for buffering high-drive outputs and its fast switching time allows it to be used in high speed applications.

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