MOTOROLA Manuals

MC74AC160/74ACT160 and MC74AC162/74ACT162 are high-speed synchronous decade counters operating in the BCD (8421) sequence. They are synchronously presettable for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility in forming synchronous multistage counters. The MC74AC160/74ACT160 has an asynchronous Master Reset input that overrides all other inputs and forces the outputs LOW. The MC74AC162/74ACT162 has a Synchronous Reset input that overrides counting and parallel loading and allows all outputs to be simultaneously reset on the rising edge of the clock.

The MC74AC158/74ACT158 is a high-speed quad 2-input multiplexer. It selects four bits of data from two sources using the common Select and Enable inputs. The four buffered outputs present the selected data in the inverted form. The MC74AC158/74ACT158 can also be used as a function generator.

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 (noninverted) form. The MC74AC157/74ACT157 can also be used as a function generator.

The MC74AC153/74ACT153 is a high-speed dual 4-input multiplexer with common select inputs and individual enable inputs for each section. It can select two lines of data from four sources. The two buffered outputs present data in the true (non-inverted) form. In addition to multiplexer operation, the MC74AC153/ 74ACT153 can act as a function generator and generate any two functions of three variables.

MC74AC151/74ACT151 is a high-speed 8-input digital multiplexer. It provides, in one package, the ability to select one line of data from up to eight sources. The MC74AC151/74ACT151 can be used as a universal function generator to generate any logic function of four variables. Both true and complementary outputs are provided.

The MC74AC14/74ACT14 is a device that contains six logic inverters which accept standard CMOS input signals (TTL levels for MC74ACT14) and provide standard CMOS output levels. They are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. In addition, they have a greater noise margin than conventional inverters. The MC74AC14/74ACT14 has hysteresis between the positive-going and negative-going input thresholds (typically 1.0V) which is determined internally by transistor ratios and is essentially insensitive to temperature and supply voltage variations.

The MC74AC138/74ACT138 is a high-speed 1-of-8 decoder/demultiplexer. This device is ideally suited for high-speed bipolar memory chip select address decoding. The multiple input enables allow parallel expansion to a 1-of-24 decoder using just three MC74AC138/74ACT138 devices or a 1-of-32 decoder using four MC74AC138/74ACT138 devices and one inverter.

MC74AC132/74ACT132 Four-input NAND Schmitt Trigger

MC74AC126 and MC74ACT126 are Quad Buffer with 3-State Outputs, support TTL compatible inputs and 3-state enable input, the maximum operating voltage is 7V, the maximum input current is 20mA, the maximum output current is 50mA.

This document describes the features and characteristics of the MC74AC125 and MC74ACT125 products. They are quad buffers with TTL compatible inputs and outputs, featuring high voltage level, low voltage level, and high impedance outputs. The document also provides maximum ratings and recommended operating conditions.

MC74AC113/74ACT113 is a high-speed independent triggered JK dual D flip-flop

The MC74AC112/74ACT112 consists of two high-speed completely independent transition clocked JK flip-flops. The clocking operation is independent of rise and fall times of the clock waveform. The JK design allows operation as a D flip-flop (refer to MC74AC74/74ACT74 data sheet) by connecting the J and K inputs together. Asynchronous Inputs: LOW input to SD (Set) sets Q to HIGH level LOW input to CD (Clear) sets Q to LOW level Clear and Set are independent of clock Simultaneous LOW on CD and SD makes both Q and Q HIGH • Outputs Source/Sink 24 mA • ′ACT112 Has TTL Compatible Inputs CP VCC CP1 K1 J1 SD1 Q1 Q1 CD1 CD2 CP2 K2 J2 SD2 CD J Q Q2 SD CONNECTION DIAGRAM Q2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 K Q CP SD K Q CD J Q MODE SELECT — TRUTH TABLE Operating Mode Inputs Outputs Operating Mode SD CD J K Q Q Set L H X X H L Reset (Clear) H L X X L H *Undetermined L L X X H H Toggle H H h h q q Load “0” (Reset) H H l h L H Load “1” (Set) H H h l H L Hold H H l l q q H, h = HIGH Voltage Level L, l = LOW Voltage Level X = Don’t Care l, h (q) = Lower case letters indicate the state of the referenced input (or output) one set-up time prior to the HIGH to LOW clock transition. *Both outputs will be HIGH while both SD and CD are LOW, but the output states are unpredictable if SD and CD go HIGH simultaneously.

This is a document about MC74AC11 and MC74ACT11 products. These products are triple 3-input AND gates with TTL compatible inputs and high output sink/source current capabilities. They operate at a voltage range of 2.0V to 6.0V and have fast input rise/fall times.

MC74AC10/MC74ACT10 is a triple 3-input Nand gate in the MC74 series. It has a high output voltage, and its input voltage range is -0.5 to VCC +0.5 V. The input current is ±20 mA and the output current is ±50 mA.

MC74AC109/74ACT109 are two high-speed, completely independent transition clocked JK flip-flops