Datasheet Summary
M54HCT157/158 M74HCT157/158
HCT157 QUAD 2 CHANNEL MULTIPLEXER HCT158 QUAD 2 CHANNEL MULTIPLEXER (INV.)
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HIGH SPEED tPD = 21 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C PATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.) VIL = 0.8V (MAX) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE IOH = IOL = 4 mA (MIN.) BALANCED PROPAGATION DELAYS tPLH = tPHL PIN AND FUNCTION PATIBLE WITH 54/74LS157/158
B1R (Plastic Package)
F1R (Ceramic Package)
M1R (Micro Package)
C1R (Chip Carrier)
ORDER CODES : M54HCTXXXF1R M74HCTXXXM1R M74HCTXXXB1R M74HCTXXXC1R
PIN CONNECTIONS (top view)
HCT157 DESCRIPTION The M54/74HCT157 and the M54/74HCT158...
