74HC238D

74HC238D, high-speed Si-gate CMOS device, SOP, 7V, ±20 mA, NXP Semiconductors

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PartNumber:: 74HC238D

Brand:: NXP Semiconductors - nxp | Pack: SOP | D/C: 11+

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Products Upload time: 2012-10-25

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Part Number:74HC238D
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Product Summary

The 74HC238D is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL). The 74HC238D decoder accepts three binary weighted address inputs (A0, A1, A2) and when enabled, provide 8 mutually exclusive active HIGH outputs (Y0 to Y7). The 74HC238D features three enable inputs: two active LOW (E1 and E2) and one active HIGH (E3). Every output will be LOW unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion of the “238” to a 1-to-32 (5 lines to 32 lines) decoder with just four “238” ICs and one inverter. The “238” can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Unused enable inputs must be permanently tied to their appropriate active HIGH or LOW state. The 74HC238D is similar to the 74HC138/74HCT138 but has non-inverting outputs.

Parametrics

74HC238D absolute maximum ratings: (1)VCC, supply voltage: -0.5 to +7 V; (2)IIK, input clamping current VI < -0.5 V or VI > VCC + 0.5 V: ±20 mA max; (3)IOK, output clamping current VO < -0.5 V or VO > VCC + 0.5 V: ±20 mA max; (4)IO, output current -0.5 V < VO < VCC + 0.5 V: ±25 mA max; (5)ICC, supply current: 50 mA max; (6)IGND, ground current: -50mA min; (7)Tstg, storage temperature: -65 to +150 ℃; (8)Ptot, total power dissipation: DIP16 package: 750 mW max; SO16, SSOP16, TSSOP16 and DHVQFN16 packages: 500 mW max.

Features

74HC238D features: (1)Demultiplexing capability; (2)Multiple input enable for easy expansion; (3)Ideal for memory chip select decoding; (4)Active HIGH mutually exclusive outputs; (5)Multiple package options; (6)Complies with JEDEC standard no. 7A; (7)ESD protection: HBM JESD22-A114E exceeds 2000 V; MM JESD22-A115-A exceeds 200 V; (8)Specified from -40 ℃ to +85 ℃ and from -40 ℃ to +125 ℃.