74VHC138TTR
STMicroelectronics
The STMicroelectronics 74VHC138TTR is a high-speed CMOS 3-to-8 line decoder/demultiplexer. It operates from a 2V to 5.5V supply and features 8mA symmetrical output impedance.
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2,080 pcs
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2080 pcs | On Request | 1 | On Request | On Request | 2000 | On Request | On Request |
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The MC74VHC138DTR2 from ON Semiconductor is an advanced high-speed CMOS 3-to-8 line decoder. Fabricated with silicon gate CMOS technology, it achieves high-speed operation comparable to Bipolar Schottky TTL while maintaining low CMOS power dissipation.
This decoder features a wide operating voltage range of 2V to 5.5V, making it suitable for interfacing between 5V and 3V systems. Key electrical characteristics include a low power dissipation of 4μA maximum at 25°C and high noise immunity. The device offers balanced propagation delays and power-down protection on its inputs.
Designed for ease of cascading and use as an address decoder in memory systems, the MC74VHC138DTR2 has three enable inputs (E3, E2, E1) and three binary select inputs (A0-A2). When enabled, the select inputs determine which of the eight outputs (Y0-Y7) will go low. Decoding is inhibited, and all outputs go high when E3 is low or E2/E1 are high.
The MC74VHC138DTR2 is supplied in a 16-TSSOP package, designed for surface mounting. Its operating temperature range is -55°C to 125°C.
| Qty | Low | High |
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| 1+ | $1.27 | $1.27 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The MC74VHC138DTR2 operates within a voltage range of 2V to 5.5V.
The typical propagation delay is 5.7ns when VCC is 5V.
The maximum operating current is 4μA at an ambient temperature of 25°C.
The device has a high noise immunity of 28% VCC.
The operating temperature range for this device is -55°C to 125°C.
The MC74VHC138DTR2 is supplied in a 16-TSSOP package.