| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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67 pcs
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67 pcs | On Request | 1 | On Request | On Request | 2002 | On Request | On Request |
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The M74HC238B1R from STMicroelectronics is a high-speed CMOS 3 to 8 line decoder fabricated using silicon gate C2MOS technology. This device is designed for applications requiring address decoding in memory systems or general logic functions.
Key electrical characteristics include a wide operating voltage range from 2V to 6V and a low power dissipation of just 4μA maximum at 25°C. It offers high noise immunity with VNIH and VNIL at 28% VCC minimum, and symmetrical output impedance with |IOH| = IOL = 4mA minimum. Propagation delays are balanced, with a typical tPD of 15ns at VCC = 6V.
The decoder has three enable inputs (G1 active HIGH, G2A/G2B active LOW) which allow for easy cascading and system expansion. When enabled, the 3 binary select inputs (A, B, C) determine which of the 8 outputs (Y0 to Y7) goes high. If any enable condition is not met, all outputs go low.
This component is supplied in a 16-pin DIP package and is designed for through-hole mounting. All inputs are protected against static discharge and transient overvoltage, enhancing reliability in various operating environments.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.27 | $1.27 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The M74HC238B1R operates from a single supply voltage of 2V to 6V.
The operating temperature range is -55°C to +125°C.
The M74HC238B1R is available in a 16-DIP (0.300", 7.62mm) through-hole package.
The typical propagation delay is 15ns at VCC = 6V.
The maximum quiescent current is 4μA at TA = 25°C.
The M74HC238B1R can source or sink a minimum of 4mA, with a typical output current of 5.2mA.
The device has a minimum noise immunity of 28% of VCC.