Bosch 509, 5xx-7xx cell phones

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Pin	Name	Signal Description	Direction
8	VIN	Input voltage - supply pin	IN
16	C-BUS	Bi-directional serial control bus	IN/OUT
7	I-BUS	Data input (internal 100k pullup)	IN
15	PA_BIAS_ON	Trigger signal synchronous withr TX burst
6	V-BATT	Connected directly to the MS battery
14	HF_ENABLE	HF enable output
5	IGNITION	Sensing ignition (in car kit)
13	D-BUS	Data output	OUT
4	CHG-ID	Charger ID - detects type of charger
12	GND	Ground-this pin is checked by HF
3	A-UL	Analog input to phone
11	AGND	Analog ground
2	A-DL	Analog output from phone
10	AGND	Analog ground
1	EQUIP-ID	Pulled low by HF, internal pullup 100k
9	GND	Ground

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Last updated at Sat Jun 25 2005 (�� )	�� ?