NXP LM75B

The NXP Semiconductors LM75B is a temperature-to-digital converter using an on-chip band gap temperature sensor and Sigma-Delta A-to-D conversion technique with an overtemperature detection output. The NXP LM75B contains a number of data registers: Configuration register (Conf) to store the device settings such as device operation mode, OS operation mode; temperature register (Temp) to store the digital temp reading, and set-point registers (Tos and Thyst) to store programmable overtemperature shutdown and hysteresis limits, that can be communicated by a controller via the 2-wire serial I ² C-bus interface . The device also includes an open-drain output (OS) which becomes active when the temperature exceeds the programmed limits. There are three selectable logic address pins so that eight devices can be connected on the same bus without address conflict.

NXP PCA9555

The NXP Semiconductors PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallel Input/Output ( GPIO ) expansion for I ² C-bus / SMBus applications and was developed to enhance the NXP Semiconductors family of I ² C-bus I/O expanders . The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors , push buttons, LEDs , fans , etc.

NXP P82B96

TheNXP Semiconductors P82B96 is a bipolar IC that creates a non-latching, bidirectional, logic interface between the normal I ² C-bus and a range of other bus configurations . It can interface I ² C-bus logic signals to similar buses having different voltage and current levels.

For example, it can interface to the 350 uA SMBus , to 3.3 V logic devices , and to 15 V levels and/or low-impedance lines to improve noise immunity on longer bus lengths.

It achieves this interface without any restrictions on the normal I ² C-bus protocols or clock speed. The IC adds minimal loading to the I ² C-bus node, and loadings of the new bus or remote I ² C-bus nodes are not transmitted or transformed to the local node. Restrictions on the number of I ² C-bus devices in a system, or the physical separation between them, are virtually eliminated.

NXP PCF8576

The NXP Semiconductors PCF8576 is a peripheral device which interfaces to almost any Liquid Crystal Display ( LCD ) with low multiplex rates. It generates the drive signals for any static or multiplexed LCD containing up to four backplanes and up to 40 segments and can easily be cascaded for larger LCD applications. The NXP PCF8576 is compatible with most microprocessors / microcontrollers and communicates via a two-line bidirectional I²C-bus . Communication overheads are minimized by a display RAM with auto-incremented addressing, by hardware subaddressing and by display memory switching ( static and duplex drive modes).

NXP PCF8563

The NXP Semiconductors PCF8563 is a CMOS real-time clock/calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage-low detector are also provided. All addresses and data are transferred serially via a two-line bidirectional I²C-bus. Maximum bus speed is 400 kbit/s. The built-in word address register is incremented automatically after each written or read data byte.

NXP SA636

The NXP Semiconductors SA636 is a low-voltage high performance monolithic FM IF system with high-speed RSSI incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage regulator, wideband data output and fast RSSI op amps.

The NXP Semiconductors PCF8574 is a silicon CMOS circuit. It provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I²C-bus).

The device consists of an 8-bit quasi-bidirectional port and an I²C-bus interface. The PCF8574 has a low current consumption and includes latched outputs with high current drive capability for directly driving LEDs. It also possesses an interrupt line (INT) which can be connected to the interrupt logic of the microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I²C-bus. This means that the PCF8574 can remain a simple slave device.

NXP SC28L92

The NXP Semiconductors SC28L92 Dual Universal Asynchronous Receiver/Transmitter (DUART) is a single-chip CMOS-LSI communications device that provides two full-duplex asynchronous receiver/transmitter channels in a single package. It interfaces directly with microprocessors and may be used in a polled or interrupt driven system with modem and DMA interface.

The SC28L92 is a pin and function replacement for the SCC2692 and SC26C92 operating at 3.3 V or 5 V supply with added features and deeper FIFOs. Its configuration on power-up is that of the SC26C92.