HA12187FP Datasheet | Hitachi Semiconductor

Description The HA12187FP was developed to be used as a bus interface driver/receiver IC in automotive audio equipment controllers. It implements a two-wire serial bus. Functions - Two-input OR circuit - Input parator circuit - Current output driver circuit - Receiver input parator circuit - Receiver output circuit - Standby circuit Features - Supports two data inputs (Pins 1 and 3 are the input pins) - parators with hysteresis characteristics were adopted for the inputs - Current drive output drivers adopted (Output current: 3.8 m A typical) - parators with hysteresis characteristics were adopted for the receivers - Wide receiver mon-mode input operating range (mon-mode input operating range: 0 to 5 V typical) - The driver output and the receiver input can withstand high voltages (Maximum rating: 18 V) - Standby function (The IC enters standby mode when pin 8 goes low) - Operating power-supply voltage range: 5 V ±0.5 V Block Diagram VCC 7 S1 1 S2 3 + - Driver output (current) 6 BUS (+) BIAS BUS (- ) R 2 Receiver output - + Rev.2, Jun. 1999, page 2 of 23 Pin Functions Pin No. 1 Symbol S1 Function Data input 1 20 k Equivalent Circuit R out Receiver...