The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
The AM26C31 is an improved replacement for?AM26LS31 IC.?The AM26C31 device is a quadruple differential line receiver for balanced or unbalanced digital data transmission. The enable function is common to all four receivers and offers a choice of active-high or active-low input. The 3-state outputs permit connection directly to a busorganized system. Fail-safe design specifies that if the inputs are open, the outputs always are high. The AM26C31 devices are manufactured using a BiCMOS process, which is a combination of bipolar and CMOS transistors
AM26C32 is an improved replacement for?AM26LS32 IC. The AM26C32 device is a quadruple differential line receiver for balanced or unbalanced digital data transmission. The enable function is common to all four receivers and offers a choice of active-high or active-low input. The 3-state outputs permit connection directly to a busorganized system. Fail-safe design specifies that if the inputs are open, the outputs always are high. The AM26C32 devices are manufactured using a BiCMOS process, which is a combination of bipolar and CMOS transistors.
As of now the CH340g is the cheapest USB to TTL IC in the market with very easy to solder foot print it has solder pitch of 1.27mm and SOIC16 package.
The?CH340 IC?does exactly what you would expect them to do: a full-speed USB device that emulates a standard serial interface, with speeds from 50bps to 2Mpbs. The chip supports 5V and 3.3V, and all the weird modem lines are supported.
Now a days lots of Node MCU, Arduino Nano and USB to TTL Converter Modules have been using this IC.
CH376?is used as file manage control chip, used to MCU system read/write file in USB Flash Drive ?or SD card.
CH376 supports?USB-Device Mode?and?USB-HOST Mode. Set the basic firmware of?USB communication protocol in the inner. It is also set firmware of special communication protocol to ?deal with Mass-Storage devices, communication interface firmware of SD card, FAT16, FAT32 and?FAT12 file system manage firmware in the inner.
The CM8870PI provides full DTMF receiver capability by integrating both the bandsplit filter and digital decoder functions into a single 18-pin DIP. The filter section uses a switched capacitor technique for both high and low group filters and dial tone rejection. The CM8870 decoder uses digital counting techniques for the detection and decoding of all 16 DTMF tone pairs into a 4-bit code. This DTMF receiver minimizes external component count by providing an on-chip differential input ampli-fier, clock generator, and a latched three state interface bus. The on-chip clock generator requires only a low cost TV crystal or ceramic resonator as an external component.
The high-performance, low cost CP21xx USB to UART bridge family offers a complete plug and play interface solution that includes royalty-free driver suites and a comprehensive design ecosystem that enables customers to speed time-to-market. Crystal-less operation, in-system programming memory and small body size packages reduce cost, simplify design and shorten development time. The CP2102 is a highly-integrated?USB-to-UART Bridge Controller?providing a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space. The?CP2102?includes a?USB 2.0 full speed function controller, USB transceiver, oscillator, EEPROM or EPROM, and asynchronous serial data bus (UART) with full modem control signals in a compact 5 x 5 mm QFN-28 package.
The CP2103 is a highly-integrated?USB-to-UART Bridge Controller?providing a simple solution for updating RS-232/RS-485 designs to USB using a minimum of components and PCB space. The CP2103 includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, EEPROM, and asynchronous serial data bus (UART) with full modem control signals in a compact 5x5 mm QFN-28 package (sometimes called ?MLF? or ?MLP?). No other external USB components are required.
Fully Equipped IC includes 10/100 MAC, TDMoP Engine, and E1/T1 LIUs and Framers.
Transport of STS-1 TDM or Other CBR Signals Over Packet Networks or E1, T1, E3, or T3
SAToP, CESoPSN, TDMoIP AAL1, HDLC, Unstructured, Structured, and Structured with CAS Mapping Methods; Adaptive Clock Recovery, Common Clock, External Clock, and Loopback Timing Modes; and Full Support for These Mapping Methods.
In addition, it is compatible with RS-422. The driver and receiver outputs feature TRI-STATE capability, for the driver outputs over the entire common mode range of 12V to ?7V. Bus contention or fault situations that cause excessive power dissipation within the device are handled by a thermal shutdown circuit, which forces the driver outputs into the high impedance state. DC specifications are guaranteed over the 0 to 70?C temperature and 4.75V to 5.25V supply voltage range.