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MC74AC157 Scheda tecnica(PDF) 1 Page - ON Semiconductor |
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MC74AC157 Scheda tecnica(HTML) 1 Page - ON Semiconductor |
1 / 9 page © Semiconductor Components Industries, LLC, 2015 January, 2015 − Rev. 8 1 Publication Order Number: MC74AC157/D MC74AC157, MC74ACT157 Quad 2-Input Multiplexer The MC74AC157/74ACT157 is a high−speed quad 2−input multiplexer. Four bits of data from two sources can be selected using the common Select and Enable inputs. The four outputs present the selected data in the true (non−inverted) form. The MC74AC157/74ACT157 can also be used as a function generator. Features • Outputs Source/Sink 24 mA • ′ACT157 Has TTL Compatible Inputs • These are Pb−Free Devices 15 16 14 13 12 11 10 2 1 3 4 567 VCC 9 8 E I0c I1c Zc I0d I1d Zd SI0a I1a Za I0b I1b Zb GND Figure 1. Pinout: 16−Lead Packages Conductors (Top View) TRUTH TABLE Inputs Outputs E S I0 I1 Z H X X X L L H X L L L H X H H L L L X L L L H X H H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. ORDERING INFORMATION FUNCTION PIN NAMES I0a−I0d I1a−I1d PIN Source 0 Data Inputs E S Source 0 Data Inputs Enable Input Select Input Outputs Za−Zd www.onsemi.com SOIC−16 D SUFFIX CASE 751B TSSOP−16 DT SUFFIX CASE 948F 1 16 1 16 MARKING DIAGRAMS xxx = AC or ACT A = Assembly Location WL or L = Wafer Lot Y = Year WW or W = Work Week G or G = Pb−Free Package 1 16 xxx157G AWLYWW xxx 157 ALYW G G 1 16 (Note: Microdot may be in either location) |
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