UPD6708 Datasheet | NEC

DATA SHEET MOS INTEGRATED CIRCUIT µPD6708 IEBus™ (Inter Equipment Bus™) PROTOCOL CONTROL LSI DESCRIPTION The µPD6708 is a peripheral LSI for microcontrollers that controls the protocol of the IEBus. This LSI processes the protocol of the IEBus. Because it is provided with a transmit/receive buffer, the microcontroller can concentrate on the application processing of the IEBus. Because the µPD6708 also contains an IEBus driver/receiver, it can be directly connected to the bus. Features - Protocol control of IEBus - Multi-master system - Broadcast munication function (munication between one unit and multiple units) - Choice of three modes with different transmission speeds At 12 MHz Mode 0 Mode 1 Mode 2 Approx. 3.9 Kbps Approx. 17 Kbps Approx. 26 Kbps At 12.58 MHz Approx. 4.1 Kbps Approx. 18 Kbps Approx. 27 Kbps - On-chip IEBus driver/receiver - Transmit/receive buffer Transmit: 4-byte FIFO Receive: 20-byte FIFO - Interface with microcontroller - Three-line serial I/O (SCK, SO, SI pins) - Transfer with MSB first - Oscillation frequency (f X): 12 MHz, 12.58 MHz - In modes 0 and 1: ±1.5 % - In mode 2: ±0.5 % - Supply voltage: VDD = 5 V ±10 % ORDERING INFORMATION Part Number Package 16-pin plastic DIP (300 mil) 16-pin plastic SOP (300 mil) µPD6708CX µPD6708GS APPLICATION FIELD Fields where a small-scale digital data transfer system is required between equipment, such as automobile electronic systems and industrial equipment The information in this document is subject to change without notice. The mark 5 shows major revised points. Document No. U10680EJ2V0DS00 (2nd edition) (Previous No. IC-3282) Date Published January 1996 P Printed in Japan © µPD6708...