SO14 IC Serial Output IC For 14 Bits of Output

Transcription

1 ABCircuits POB New Hill () 0-0 General Description SO IC Serial Output IC For Bits of Output The SO IC is designed to provide bits of output data to connect to RS-, RS-, USB, Ethernet or directly to your UART. Outputs can be used to drive relay contacts, logic, optocouplers or a transistors. The SO also provides a pulse output when the OB data bits are received. The serial input to the SO is standard asynchronous format, using bits, stop and no parity at 00 BPS. Other formats and encoding are available, contact the factory. A. uf bypass capacitor is suggested across the and pins. The part uses the standard 0 pin. inch width SOIC package. This part may be paired with the SI chip to achieve bits of input and output, except on RS - interfaces. Features Asynchronous serial control for up to bits of data. Output control using RS-, RS -, USB or Ethernet or UART. Can drive be used to drive relays, optocouplers, and logic. No external parts required. Low power consumption ma typical. Supply voltage. to. volts. All timing internally generated. TTL and CMOS compatible outputs. Part is in full production. SOIC and DIP 0 Pin Package. ROHS Compliant Low EMI Applications Output Expansion Remote control Process control Building Automation Off site monitoring Security systems Internet of things Machine control Part Number C-SO Copyright 0 ABCircuits. Revised September 0 Page of

2 ABCircuits POB New Hill () 0-0 Example Circuits OUTPUT B OUTPUT B OUTPUT B OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT B OUTPUT B OUTPUT B 0 OA OA OA OB OB OB OB0 BITS OUTPUT ETHERNET SO OA OA OA OB OB OB 0 +. LANTRONIX XPORT +. -POR OUT IN CP CP CP ETHERNET BITS OUTPUT USB.0 BEAD.. OUTPUT B OUTPUT B OUTPUT B OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT B OUTPUT B OUTPUT B OA OA OA OB OB OB 0 OB0 SO OA OA OA OB OB OB 0 USB CASE REFER TO FT DATASHEET FOR MORE DETAILS USBM USBP -RST OSCI OSCO 0 IO VOUT A TEST FT-SSOP TXD RXD DTR -CTS RTS RI DSR DCD CBUS0 CBUS CBUS CBUS CBUS 0. BITS OUTPUT RS- OUTPUT B OUTPUT B OUTPUT B OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT B OUTPUT B OUTPUT B OA OA OA OB OB OB 0 OB0 SO OA OA OA OB OB OB 0 U RO -RE -DO/-RI DE DO / RI DI U FOR V U MAX FOR.V RS Part Number SO Copyright 0 ABCircuits. Revised September 0 Page of

3 ABCircuits POB New Hill () 0-0 BITS OUTPUT RS- OUTPUT B OUTPUT B OUTPUT B OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT A OUTPUT B OUTPUT B OUTPUT B OA OA OA OB OB OB OB0 0 SO OA OA OA OB OB OB 0 C. C. C+ C+ C- C- U SEE NOTES Tin Tout 0 Tin Tout Rout Rin Rout Rin V+ V- + C. C. RS DBS J RXD U= MAX FOR V RS U= MAX FOR V RS Connection Diagram 0 OA OA OA OB OB OB OB0 SO OA OA OA OB OB OB 0 Pin Description Pin # Description Pin # Description 0 OA OA OA OA OA OA OB OB OB OB OB OB0 OB 0 - and OB0- These bits are set when a byte is received. If bit is zero, the - pins will be set. If bit is a one, the OB0- pins will be set. Output drivers may be required for high power loads. This pin outputs a positive pulse after a byte is received with bit set to a one and the bits are placed on the OB pins. If bit is zero, no pulse is generated on the pin. Part Number SO Copyright 0 ABCircuits. Revised September 0 Page of

4 ABCircuits POB New Hill () 0-0 This is the serial input pin. It may be tied directly to the UART transmitter output of your UART or microprocessor; to a RS - receiver such as the MAX; a RS receiver such as the ; an Ethernet interface such as the Lantronix Xport; or a USB IC such as the FT. This pin is high in the idle state, the input format is bits, stop, no parity at 00 BPS. Other formats and baud rates are available, please contact the factory for information. When the bits for - are received, bit of the received byte is a zero. When the bits for OB0- are received, bit of the received byte is a one. You can drive this input with any hexadecimal terminal program like REALTERM for testing and development. Connect to system ground. Connect to supply voltage of. to volts. A. uf decoupling capacitor to ground is recommended. NOTES: Make no connection to the pins. Pins and must be left unconnected. Serial Input Stream When a byte is received on the SIN pin, bit is tested. If the bit is a zero, the byte is placed on the OA pins. If bit is a one, the byte is placed on the OB pins. The SI automatically removes start and stop bits from the data stream. The data is format is 00 BPS, bits, stop, no parity. DATA STREAM OUTPUT OA BITS OUTPUT OB BITS START OA OA OA OA OA OA 0 STOP START OB0 OB OB OB OB OB OB STOP BIT CELLS Absolute Maximum Ratings Symbol Description Min Typical Max Units Notes T stg Storage Temperature ºC T a Operating Temperature -0 + ºC V dd V dd - V ss Voltage V V io Input Voltage V ss - 0. V dd +0. V I mio Maximum current into any pin - +0 ma ESD Electrostatic Discharge Voltage 000 V Human Body Model ESD LU Latch up current 00 ma Part Number SO Copyright 0 ABCircuits. Revised September 0 Page of

5 ABCircuits POB New Hill () 0-0 DC Electrical Characteristics Symbol Description Min Typical Max Units Notes V dd Supply Voltage.. V I dd Supply Current ma Note V oh High Output Level V dd -.0 V I oh =0 ma V ol Low Output Voltage 0. V I ol = ma V ih Input High Level. V V il Input Low Level 0. V I oh High Level Source Current 0 ma I ol Low Level Sink Current ma C io Capacitive load. 0 pf I il Input leakage na R pu Pull Up Resistors On Inputs IA,. k? IB, and SPD Note : Vdd=VDC, all inputs and outputs open Theory Of Operation The SO IC is a custom programmed microprocessor designed to monitor a serial input stream and control outputs. When a byte is received, bit is tested. If bit is zero, the byte is placed on the OA pins. If bit is one, the byte is placed on the OB pins and positive pulse is generated on the pin. The data is standard asynchronous format data bits, stop bit and no parity. Baud rate is 00 BPS. The OB and OA bytes may be sent in any order. It is recommended that the OA and OB bytes be sent periodically even if there is no change, to recover from power failure or serial data errors. Part Number SO Copyright 0 ABCircuits. Revised September 0 Page of

6 ABCircuits POB New Hill () 0-0 Physical Dimensions 0 Pin DIP (-DIP Suffix) Physical Dimensions 0 Pin SOIC Close but not quite? Our products are software based, we can modify existing parts to fit your needs at a minimal cost or create new parts designed to your specifications. us and we can make a chip for you! For the latest version of this spec sheet, visit Design Services Available We can quickly turn your idea into a chip, a pc board, or a finished product. Contact us with your needs and specifications. Part Number SO Copyright 0 ABCircuits. Revised September 0 Page of