| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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335 pcs
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335 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Length | |
| Load Capacitance | |
| Mounting Type | |
| SVHC Present |
The 74HC138 is a high-speed CMOS decoder integrated circuit manufactured by Harris Semiconductor. This device accepts a three-bit binary weighted address on input pins A0, A1, and A2. When enabled, it produces one active low output while the remaining seven outputs are high. It features two active LOW enable inputs (E1, E2) and one active HIGH enable input (E3). The disabled state results in all outputs being high.
Key electrical specifications include a wide supply voltage range from 2.0V to 6.0V, with a typical nominal supply voltage of 5V. Propagation delay is typically 45 ns at nominal supply voltage and 225 ns. Load capacitance is specified at 50 pF.
Environmentally, the 74HC138 is specified for operation between -40°C and +125°C. It also offers high noise immunity and latch-up performance exceeding 100 mA. ESD protection is provided, exceeding 2000V for HBM and 200V for MM.
This decoder IC is ideal for applications such as memory chip select decoding, demultiplexing, and single-line peripheral control, allowing simple serial bit streams from a microcontroller to control multiple peripheral lines.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.27 | $1.27 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The supply voltage range is 2V to 6V, with a nominal supply of 5V.
The operating temperature range is -40°C to 125°C.
The typical propagation delay is 45 ns at nominal supply voltage.
The ESD protection exceeds 2000 V for HBM and 200 V for MM.
The latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
The typical load capacitance is 50 pF.
The peak reflow temperature is 260°C.