Description:Chip Complexity: 100 FETs or 29 Equivalent Gates; In Compliance with the Requirements Defined by JEDEC Standard No. 7A; Output Drive Capability: 10 LSTTL Loads; Outputs Directly Interface to CMOS, NMOS and TTL; Low Input Current: 1.0 mA; High Noise Immunity Characteristic of CMOS Devices; Operating Voltage Range: 2.0 to 6.0 V; Pb-Free Packages are Available*
The maximum frequency of operation for the MC74HC138ADR2G is typically around 25 MHz, but this can vary depending on the specific application and operating conditions.
To ensure that the output signals are not distorted or skewed, it is recommended to use a low-impedance output driver, such as a buffer or a line driver, and to keep the output lines as short as possible to minimize signal degradation.
The recommended power-on reset sequence for the MC74HC138ADR2G is to apply power to the VCC pin first, followed by the input signals, and then the enable signal (E1, E2, or E3). This ensures that the device is properly initialized and ready for operation.
When the enable inputs (E1, E2, E3) are not used, they should be tied to a logic high (VCC) to ensure that the device operates correctly. Leaving them floating or unconnected can cause unpredictable behavior.
The maximum capacitive load that the MC74HC138ADR2G can drive is typically around 100 pF, but this can vary depending on the specific application and operating conditions. It is recommended to consult the datasheet and application notes for more information.
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MC74HC138ADR2G Overview
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