74AHC138D-Q100J Nexperia

74AHC138-Q100 74AHCT138-Q100 3-to-8 line decoder/demultiplexer inverting Rev. 3 10 September 2020 Product data sheet 1. General description The 74AHC138-Q100 74AHCT138-Q100 are high-speed Si-gate CMOS devices and are pin compatible with Low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard No. 7A. The 74AHC138-Q100 74AHCT138-Q100 is a 3-to-8 line decoder/demultiplexer. It accepts three binary weighted address inputs (A0, A1 and A2) and, when enabled, provides eight mutually exclusive outputs (Y0 to Y7) that are LOW when selected. There are three enable inputs: two active LOW (E1 and E2) and one active HIGH (E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion of the device to a 1-of-32 (5 lines to 32 lines) decoder with just four 74AHC138-Q100 74AHCT138-Q100 devices and one inverter. The 74AHC138-Q100 74AHCT138-Q100 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. This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications. 2. Features and benefits Automotive product qualification in accordance with AEC-Q100 (Grade 1) Specified from -40 C to +85 C and from -40 C to +125 C Balanced propagation delays All inputs have Schmitt-trigger action Demultiplexing capability Multiple input enable for easy expansion Ideal for memory chip select decoding Inputs accepts voltages higher than V CC For 74AHC138-Q100 only: operates with CMOS input levels For 74AHCT138-Q100 only: operates with TTL input levels ESD protection: MIL-STD-883, method 3015 exceeds 2000 V HBM JESD22-A114F exceeds 2000 V MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 ) Multiple package options DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of solder jointsNexperia 74AHC138-Q100 74AHCT138-Q100 3-to-8 line decoder/demultiplexer inverting 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74AHC138D-Q100 -40 C to +125 C SO16 plastic small outline package 16 leads SOT109-1 body width 3.9 mm 74AHCT138D-Q100 74AHC138PW-Q100 -40 C to +125 C TSSOP16 plastic thin shrink small outline package SOT403-1 16 leads body width 4.4 mm 74AHCT138PW-Q100 74AHC138BQ-Q100 -40 C to +125 C DHVQFN16 plastic dual in-line compatible SOT763-1 thermal enhanced very thin quad 74AHCT138BQ-Q100 flat package no leads 16 terminals body 2.5 3.5 0.85 mm 4. Functional diagram DX 15 X/Y 15 0 0 1 1 14 14 0 1 1 1 2 2 0 13 13 G 2 A0 Y0 15 2 2 1 7 3 12 3 12 Y1 14 2 A1 2 3 4 3 11 11 3 A2 Y2 13 4 4 Y3 12 10 10 4 4 & & 5 5 11 E1 Y4 4 9 9 5 5 6 6 Y5 10 E2 EN 5 7 7 6 6 7 7 Y6 9 E3 6 7 Y7 mna371 mna370 (a) (b) Fig. 1. Logic symbol Fig. 2. IEC logic symbol Y0 15 1 A0 Y1 14 A1 2 Y2 13 3 A2 Y3 12 3-to-8 ENABLE Y4 11 DECODER EXITING Y5 10 Y6 9 Y7 7 4 E1 5 E2 6 E3 mna372 Fig. 3. Functional diagram 74AHC AHCT138 Q100 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 3 10 September 2020 2 / 15