National Manuals

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

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

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