National Manuals

DS90CR287/DS90CR288A +3.3V Rising Edge Data Strobe LVDS 28-Bit Channel Link-85 MHZ is a chipset produced by National Semiconductor Corporation for data transmission. It supports a transmit clock frequency of 20 to 85 MHZ and has features such as low power consumption, narrow bus and high bandwidth.

LM140L series 3-Terminal Positive Regulators is a three-terminal positive voltage regulator with multiple fixed output voltages, which makes it useful in a wide range of applications. LM140LA is an improved version of the LM78LXX series with a tighter output voltage tolerance (specified over the full military temperature range), higher ripple rejection, better regulation and lower quiescent current. LM140LA regulators have ±2% VOUT specification, 0.04%V line regulation and 0.01%mA load regulation. When used as a zener diode/resistor combination replacement, the LM140LA usually results in an effective output impedance improvement of two orders of magnitude, and lower quiescent current. These regulators can provide local on card regulation, eliminating the distribution problems associated with single point regulation. The voltages available allow the LM140LA to be used in logic systems, instrumentation, Hi-Fi and other solid state electronic equipment. Although primarily designed as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. LM140LA, LM340LA are available in the low profile metal three lead TO-39 (H) package and the LM340LA are also available in the plastic TO-92 (Z) package. With adequate heat sinking the regulator can deliver 100 mA output current. Current limiting is in the input.

LM45B/LM45C SOT-23 Precision Centigrade Temperature Sensors. This sensor does not require any external calibration or trimming to provide accuracies of ±2°C at room temperature and ±3°C over a full −20 to +100°C temperature range.

This datasheet mainly introduces the basic principle, characteristic parameters, usage methods and circuit application examples of the LM2594/LM2594HV series switching regulators.

The LMV7219 is a low-power, high-speed comparator with internal hysteresis. The LMV7219 operating voltage ranges from 2.7V to 5V with push/pull rail-to-rail output. This device achieves a 7ns propagation delay while consuming only 1.1mA of supply current at 5V. The LMV7219 inputs have a common mode voltage range that extends 200mV below ground, allowing ground sensing. The internal hysteresis ensures clean output transitions even with slow-moving inputs signals. The LMV7219 is available in the SC70-5 and SOT23-5 pack- ages, which are ideal for systems where small size and low power are critical.

LP3881 0.8A Fast-Response Ultra Low Dropout Linear Regulators

The ABT646 is an 8-bit bus transceiver chip with 3-state output, which can realize register and transceiver function simultaneously and multiplex transmission.

The LM4881 is a dual audio power amplifier from National Semiconductor capable of delivering 200mW of continuous average power into an 8Ω load with 0.1% (THD) from a 5V power supply.

The LM833 is a dual general purpose operational amplifier designed with particular emphasis on performance in audio systems. It has wide dynamic range, low noise, high gain bandwidth, high slew rate and low distortion.

The LMV727X series is a 1.8V low-power comparator with switch output and push-pull output. It has single power supply and dual power supply. They have low power consumption, low voltage, high performance, etc., and are suitable for low voltage, low power and space-limited designs.

The LP38690/2-ADJ low dropout CMOS linear regulators provide 2.5% precision reference voltage, extremely low dropout voltage (450mV @ 1A load current, VOUT = 5V) and excellent AC performance utilizing ultra low ESR ceramic output capacitors.

The 54FCT533 is an octal transparent latch with TRI-STATE outputs, designed for bus organized system applications. The flip-flops act transparently to the data when Latch Enable (LE) is HIGH. When LE is low, the data satisfying the input timing requirements is latched. Data appears on the bus when the Output Enable (OE) is LOW. When OE is HIGH, the bus output is in the high impedance state.