UTC Manuals

The U74HC540 is an octal buffer and line driver with inverting 3-tate outputs from UNISONIC TECHNOLOGIES CO., LTD. The 3-state output is controlled by output enable inputs 1 OE and OE2, all eight outputs will be in high-impedance when either of the 2 inputs is applied with high voltage.

This document is the datasheet of U74LVC2G240. U74LVC2G240 is a dual buffer or driver with 3-state outputs produced by UNISONIC TECHNOLOGIES CO., LTD. It is designed for 1.65V to 5.5V operation. U74LVC2G240 consists of two 1-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low, data passes from A (input) to Y (output). When OE is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor, and the minimum value of the resistor is determined by the current-sinking capability of the driver. U74LVC2G240 is fully specified for partial-power-down applications using IOFF. The IOFF circuitry disables the outputs and prevents damaging current backflow through the device when it is powered down.

LM358 is a dual operational amplifier produced by Unisonic Technologies Co., Ltd. It has high gain, internal frequency compensation, wide power supply range, input common mode voltage range including ground and large DC voltage gain.

LM393 is a dual differential comparator that operates from a single or dual power supply. It has a wide operating voltage range, input common-mode voltage includes ground, low power consumption, and low input bias current.

This document is TL494's technical documentation, which introduces the functional characteristics of TL494, including PWM power control circuit, uncommitted outputs, output control, internal circuitry, double pulses over total range, Easy synchronization, DIP-16, SOP-16, Pb-free plating, ordering information, pin configurations and block diagram.

This datasheet is for LM339, which is a four independent voltage comparator produced by UTC company. It is specially designed to operate from a single power supply over a wide voltage range.

LM339 is a quad differential comparator designed for applications that operate from a single power supply over a wide voltage range. It features signal or dual supply operation, input common-mode voltage includes ground, low supply current, open collector outputs, etc.

UTC LM318 is a precision, high speed, high gain operational amplifier that has been specifically designed for use in high slew rate and wide bandwidth applications.

The LM318 is a precision, high speed, high gain operational amplifier that has been specifically designed for use in high slew rate and wide bandwidth applications. Unlike many wideband amplifiers, the LM318 is unity-gain stable since it has internal circuitry for frequency compensation. However, external components may be added for compensation to achieve optimum performance. When used in inverting applications, feed-forward compensation can be used to achieve slew rate in excess of 150V/µs and almost double the bandwidth. For greater stability, using overcompensation with the amplifier is possible if maximum bandwidth is not needed. In general, by adding a single capacitor can reduce the settling time for 0.1% error band to under 1µs. The typical applications of UTC LM318 include A/D converters, fast integrator, oscillators, active filters, sample and hold circuits, or general purpose amplifiers.

The UTC TIP122 is a NPN epitaxial transistor, designed for use in general purpose amplifier low-speed switching applications.

UTC TIP127 is a PNP EPITAXIAL TRANSISTOR produced by UTC UNISONIC TECHNOLOGIES CO., LTD. With its high withstand voltage and large current output characteristics, it is widely used in switching power supplies, voltage regulators, and motor drives.

LM324 is a quad operational amplifier designed by Unisonic Technologies Co., LTD. It can work in a wide voltage range from a single supply or from split power supplies. It is widely used in transducer amplifier, DC gain blocks and all the conventional OP amp circuits.