National Manuals (Industrial)

national semiconductor MM54C941/MM74C941 Octal Buffers/Line Receivers/Line Drivers with TRI-STATE Outputs handbook

This is a MM54C941�MM74C941 Octal Buffers�Line Receivers�Line Drivers with TRI-STATE Outputs product manual

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national semiconductor MM54C914/MM74C914 Hex Schmitt Trigger with Extended Input Voltage handbook

The MM54C914-MM74C914 is a monolithic CMOS Hex Schmitt trigger with a special input protection scheme. This scheme allows the input voltage levels to exceed VCC or ground by at least 10V (VCC ≤ 25V to GND ≥ 25V), which is valuable for applications involving voltage level shifting or mismatched power supplies. The positive and negative-going threshold voltages, VTa and VTb, show low variation with respect to temperature (typ 0.0005V/°C at VCC = 10V), and the hysteresis, VTa - VTb ≥ 0.2 VCC, is guaranteed.

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National Semiconductor MM54C90/MM74C90 4-Bit Decade Counter MM54C93/MM74C93 4-Bit Binary Counter handbook

The MM54C90 and MM74C90 are 4-bit decade counters, and the MM54C93 and MM74C93 are 4-bit binary counters. They are complementary MOS (CMOS) integrated circuits constructed with N- and P-channel enhancement mode transistors. The 4-bit decade counter can reset to zero or preset to nine by applying appropriate logic level on the R01, R02, R91 and R92 inputs. Also, a separate flip-flop on the A-bit enables the user to operate it as a divide-by-2, 5 or 10 frequency counter. The 4-bit binary counter can be reset to zero by applying high logic level on inputs R01 and R02, and a separate flip-flop on the A-bit enables the user to operate it as a divide-by-2, -8 or -16 divider. Counting occurs on the negative going edge of the input pulse. All inputs are protected against static discharge damage.

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National Semiconductor MM74C908/MM74C918 Dual CMOS 30V Relay Driver handbook

This is an introduction to the MM74C908 and MM74C918, two dual high voltage drivers produced by National Semiconductor Corporation, which can work in the input voltage range of 3V to 18V, have high noise immunity, low output“ON” resistance, high voltage and high current characteristics.

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National Semiconductor MM54C901/MM74C901/MM54C902/MM74C902/MM54C903/MM74C903/MM54C904/MM74C904 handbook

MM54C901 and MM74C901 are CMOS type hex non-inverting buffers, MM54C903 and MM74C903 are TTL type hex inverting buffers. They employ complementary MOS technology, which has a wide supply voltage range, low power consumption and high noise immunity. These buffers can directly interface PMOS to CMOS or TTL, and directly interface CMOS to TTL or CMOS, operating at a reduced VCC supply.

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National Semiconductor MM54C89/MM74C89 64-Bit TRI-STATE handbook

This file is the English manual for MM54C89/MM74C89 64-Bit TRI-STATE Random Access Read-Write Memory

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National Semiconductor MM54C74/MM74C74 Dual D Flip-Flop handbook

MM54C74/MM74C74 is a dual D flip-flop. It is a monolithic complementary MOS (CMOS) integrated circuit constructed with N- and P-channel enhancement transistors. Each flip-flop has independent data, preset, clear and clock inputs and Q and Q outputs. The logic level present at the data input is transferred to the output during the positive going transition of the clock pulse. Preset or clear is independent of the clock and accomplished by a low level at the preset or clear input.

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National Semiconductor MM54C48/MM74C48 BCD-to-7 Segment Decoder handbook

The MM54C48 is a BCD-to-7 Segment Decoder produced by National Semiconductor Corporation. It has a wide supply voltage range (3.0V to 15V), guaranteed noise margin (1.0V), high noise immunity (0.45 VCC (typ)), low power fan out of 2 TTL compatibility driving 74L, high current sourcing output (up to 50 mA), Leading or Trailing zeros Ripple blanking (optional) and Lamp test provision.

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national semiconductor MM54C42/MM74C42 BCD-to-Decimal Decoder handbook

MM54C42-MM74C42 is a BCD-to-Decimal decoder constructed with complementary MOS (CMOS) integrated circuit. It features a wide supply voltage range, high noise immunity, low power consumption, and medium speed operation. It is suitable for applications in automotive, alarm systems, data terminals, industrial electronics, instrumentation, remote metering, medical electronics, and computers.

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national semiconductor MM54C373/MM74C373 TRI-STATEÉ Octal D-Type Latch MM54C374/MM74C374 TRI-STATE Octal D-Type Flip-Flop handbook

The MM54C373 and MM74C373 are eight-bit D-type latches with TRI-STATE outputs, suitable for driving high capacitive loads. The MM54C374 and MM74C374 are eight-bit D-type flip-flops with TRI-STATE outputs, suitable for positive-edge triggering. These products feature a wide supply voltage range, high noise immunity, and low power consumption.

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National Semiconductor MM54C32/MM74C32 Quad 2-Input OR Gate handbook

This document describes the features and characteristics of the TLF5881 MM54C32 and MM74C32 Quad 2-Input OR Gates. These gates employ complementary MOS (CMOS) transistors to achieve low power and high noise margin. They provide the basic functions used in the implementation of digital integrated circuit systems. The N- and P-channel enhancement mode transistors provide a symmetrical circuit with output swings essentially equal to the supply voltage, resulting in high noise immunity over a wide supply voltage range. No DC power other than that caused by leakage current is consumed during static conditions. All inputs are protected against static discharge damage.

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National Semiconductor MM54C221/MM74C221 Dual Monostable Multivibrator handbook

MM54C221-MM74C221 is a dual monostable multivibrator with features such as wide supply voltage range, guaranteed noise margin, and low power consumption.

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National Semiconductor MM54C195/MM74C195 4-Bit Registers handbook

The MM54C195 is MM74C195 CMOS 4-bit registers features parallel inputs, parallel outputs, J-K serial inputs, shift-load control input and a direct overriding clear. The register has two modes of operation, parallel load and shift. Parallel loading is accomplished by applying the four bits of data and taking the shift-load control of input low. The data is loaded into the associated flip-flops and appears at the outputs after the positive transition of the clock input. During parallel loading, serial data flow is inhibited. Serial shifting is accomplished synchronously when the shift-load control input is high. Serial data for this mode is entered at the J-K inputs. These inputs allow the first stage to perform as a J-K, D or T-type flip flop as shown in the truth table.

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National Semiconductor MM54C192/MM74C192 Synchronous 4-Bit Up/Down Decade Counter MM54C193/MM74C193 Synchronous 4-Bit Up/Down Binary Counter handbook

The MM54C192 and MM74C192 are BCD counters, while the MM54C193 and MM74C193 are binary counters. Both counters support counting from 0 to 9 and can be used to perform addition and subtraction operations, respectively. The counters also have carry and borrow outputs, so they can be cascaded using no external circuitry.

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national semiconductor MM54C08/MM74C08 Quad 2-Input AND Gate handbook

The MM54C08/MM74C08 is a quad 2-input AND gate from National Semiconductor. The circuit uses complementary MOS (CMOS) transistors to achieve wide power supply operating range, low power consumption and high noise margin. It can be used in the design of digital integrated circuit systems.

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national semiconductor MM70C95/MM80C95 MM70C97/MM80C97 TRI-STATEÉ Hex Buffers MM70C96/MM80C96 MM70C98/MM80C98 TRI-STATE Hex Inverters handbook

The MM70C95, MM80C95, MM70C97, and MM80C97 are monolithic complementary MOS (CMOS) integrated circuits constructed with N- and P-channel enhancement mode transistors. They convert CMOS or TTL outputs to TRI-STATE outputs with no logic inversion and provide the logical opposite of the input signal. The MM70C95 and MM80C95 and the MM70C96 and MM80C96 have common TRI-STATE controls for all six devices. The MM70C97 and MM80C97 and the MM70C98 and MM80C98 have two TRI-STATE controls, one for two devices and one for the other four devices. Inputs are protected from damage due to static discharge by diode clamps to VCC and GND. These gates have a wide supply voltage range (3.0V to 15V), guaranteed noise margin (1.0V), high noise immunity (0.45 VCC (typ.)), and TTL compatibility. They can drive 1 TTL load and are used in bus drivers. The typical propagation delay into a 150 pF load is 40 ns.

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National Semiconductor 54F/74F161A 54F/74F163A handbook

The ’F161A and ’F163A are high-speed synchronous modu- lo-16 binary counters� 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 multi-stage counters� The ’F161A has an asynchronous Master-Reset input that over- rides all other inputs and forces the outputs LOW� The ’F163A has a Synchronous Reset input that overrides counting and parallel loading and allows the outputs to be simultaneously reset on the rising edge of the clock� The ’F161A and ’F163A are high-speed versions of the ’F161 and ’F163�

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