TSS-IO16-E

TSSIO16E VAN peripheral circuit - 16 inputs-outputs 1. Features q q q q q q q q q q q q Management of 16 inputs-outputs (16-bit or two 8-bit configurable ports) VAN protocol V4.0 3 external wired address Safety mode in case of transmission loss Automatic adaptation to speed of bus from 8kTS/s to 250kTS/s CMOS 0,5µm, IO CMOS TTL compatible Internal power-on-reset Internal ring oscillator from 10 to 40MHz (for internal clock) 500kHz oscillator with external RC network (for safety mode clock usage) Supply voltage 5V±10% Typical power consomption 4mA SO28 package 2. General description / block diagram The block diagram given below shows the organization of the circuit as two blocks: the VAN controller (block 1), and the groups of specific functions (block 2) relative to the TSSIO16E. These are based on management of 16 inputs-outputs grouped together to form two 8-bit bi-directional programmable ports: port A and port B. The circuit thus ensures double exchange of information with the VAN bus (via the line interface) on the one hand and the active environment on the other. http://www.DataSheet4U.net/ External address Safety mode code Specific functions Line interface VAN controller Block 1 Block 2 TSSIO16E Active environment Figure 1. The bus data is supplied to the circuit (after shaping by the line transmitter/receiver) through 3 input lines RXD0, RXD1 and RXD2 selected one after another when communication on one of the lines is defective (line diagnosis system). Ope...