National Manuals

This document describes the features and characteristics of TL6518 DM7446A DM5447A DM7447A BCD to 7-segment decoders/drivers, including circuits with active-low outputs, full ripple-blanking input/output controls, lamp test input, automatic leading and trailing zero-blanking control, etc. The products have features such as lamp intensity modulation capability, open-collector outputs for driving indicators directly, lamp test provision, leading-trailing zero suppression, etc.

5474/DM5474/DM7474 Dual Positive-Edge-Triggered D Flip-Flops with Preset/Clear and Complementary Outputs

This document describes the features and characteristics of the DM7476 dual master-slave J-K flip-flops with clear, preset, and complementary outputs, produced by Fairchild Semiconductor Corporation.

5476 is a dual master-slave J-K flip-flop with complementary outputs produced by National Semiconductor. It has two independent positive pulse triggers, which process J and K data after a complete clock pulse. When the clock is low, the slave is isolated from the master. When the clock is positive, the data from the J and K inputs is transferred to the master. When the clock is high, the J and K inputs are disabled. When the clock is negative, the data from the master is transferred to the slave. The logic state of J and K inputs must not be allowed to change while the clock is high. The data is transferred to the outputs on the falling edge of the clock pulse. When setting or resetting the outputs, a low logic level on the preset or clear inputs will be independent of the logic levels of the other inputs.

This document describes a dual J-K flip-flop with preset and clear functions, named TLF5074 MM54HC76 MM74HC76. It utilizes advanced silicon-gate CMOS technology to achieve low power consumption, high noise immunity, and the ability to drive 10 LS-TTL loads.

The MM74HC164 is an 8-bit serial-in/parallel-out shift register that utilizes advanced silicon-gate CMOS technology. It has the high noise immunity and low power consumption of standard CMOS integrated circuits, while offering speeds comparable to low power Schottky devices. This shift register has gated serial inputs and a CLEAR function. Each register bit is a D-type master/slave flip-flop. Inputs A and B provide complete control over the incoming data. A LOW level at either or both inputs inhibits the entry of new data and resets the first flip-flop to a low level at the next clock pulse. A high level on one input enables the other input to determine the state of the first flip-flop. Data at the serial inputs can be changed while the clock is HIGH or LOW, but only data that meets the setup and hold time requirements will be entered. Data is serially shifted in and out of the 8-bit register during the positive-going transition of the clock pulse. The CLEAR function is independent of the clock and is accomplished by a low level at the CLEAR input. The 74HC logic family is functionally and pin-out compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground.

This document describes a 4-bit magnitude comparator that can be used to compare straight binary or BCD codes. It features high expandability, low power dissipation, and short delay times.

The 5486 is a quad 2-input exclusive-OR gate from National Semiconductor Corporation. It has a rated operating voltage of 7V, an input voltage of 5.5V, and a working temperature range of -55°C to 125°C. The storage temperature range is -65°C to 150°C.

The LM112 series are micropower operational amplifiers with very low offset-voltage and input-current errors�at least a factor of ten better than FET amplifiers over a b55�C to a125�C temperature range

LM2595 SIMPLE SWITCHER® Power Converter 150 kHz 1A Step-Down Voltage Regulator

The LMX2335/LMX2336/LMX2337 are integrated dual frequency synthesizers from National, including two high-frequency prescalers, designed for applications requiring two RF phase-locked loops.

The LP3931 is a RGB LED driver with high current boost DC-DC converter designed for portable wireless applica- tions. It contains 2 sets of RGB LED drivers that are PWM- driven with programmable color, intensity and blinking pat- terns. They additionally feature a FLASH function to support picture taking with camera-enabled cellular phones. An efficient magnetic boost DC/DC converter provides the required bias, operating from a single Li-Ion battery. The DC/DC converter output voltage is user programmable for adapting to different LED types and for efficiency optimiza- tion. All functions are software controllable through the SPI inter- face and internal registers.

The LP2982 is a 50mA, fixed-output voltage regulator designed to provide ultra low dropout and lower noise in battery powered applications.

The 54ACQ240 is an inverting octal buffer and line driver designed to be employed as a memory address driver, clock driver, and bus-oriented transmitter or receiver, providing improved PC board density. It utilizes NSC Quiet Series technology to guarantee quiet output switching and improve dynamic threshold performance.