Unknown Manufacturer HA12240FP
The HA12240FP is developed to be used as a bus interface driver/receiver IC in automotive audio equipment controllers. It implements a two-wire serial bus.DESCRIPTION
It implements a two-wire serial bus. Functions●
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● Two-input OR circuit Input comparator circuit (3.3 V and 5.0 V available) Current output driver circuit Receiver input comparator circuit Receiver output circuit (Open-collector output) Standby circuit
FEATURES
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● Supports two data inputs (Pins 1 and 3 are the input pins) Comparators with hysteresis characteristics are adopted for the inputs (3.3 V and 5.0 V available) Current drive output drivers adopted (Output current: 3.8 mA typical) Comparators with hysteresis characteristics are adopted for the receivers Wide receiver common-mode input operating range (Common-mode input operating range: 0 to 5 V typical) The driver output /the receiver input (pins 5 and 6) can withstand high voltages (Maximum ratings of 18 V) Standby functions (standby mode when pin 8 becomes low level) Operating power-supply voltage range of 5 V ± 0.5 V Block Diagram VCC 7 S1 1 + – Driver output (current) 6 BUS(+) S2 3 STB 8 BIAS Receiver output 4 – 5 BUS(–) R 2 COM + Rev.1.0, Dec.01.2003, page 1 of 23 HA12240FP Pin Functions Pin No.