V1203

FUNCTIONS                                                         FEATURES

DESCRIPTION

  The A6191 is a COMS digital 6 -function watch integrated

circuit with alarm and chronograph function;

Designed to for  a   12 -  digit triplexed liquid crystal display.The A6191 generates alarm,

chime and touch - tone signals on the ALA output to drive a buzzer.

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Characteristic	Symbol	Test Condition	Min	Typ	Max	Unit
Operating Voltage	Vcc		1.2	1.5	1.8	V
Supply Current	Icc	Without load		1.2	2.5	uA
Input High Voltage	VIH		VCC-0.3		VCC	V
Input Low Voltage	VIL		VSS		VSS+0.3	V
Oscillator Start Voltage	VOSC				1.45	V
Oscillator Stop Voltage	VOSP				1.15	V
Oscillator Frequency	FOSC			32768		Hz
Oscillator Input Capacitor	CIN			25		pF
Oscillator Output Capacitor	COUT			25		pF

NOTE: When switches S , M , D are depressed together , all segments of LCD

will be displayed and after releasing all digits of LCD will be resetted .

LCD FORMAT

Pad	Pad	COM1	COM2	COM3	Pad	Pad	COM1	COM2	COM3
No.	Name				No.	Name
1	SEG1	F1	E1	A1/D1	17	SEG17	D10	C11	B11
2	SEG2	B1	G1	C1	18	SEG18	C10	E11	A11/D11/G11
3	SEG3	F2	E2	D2	19	SEG19	L2	B10	A10
4	SEG4	A2	G2	C2	20	SEG20	E10	G10	F10
5	SEG5	B2	COL1	E3	21	SEG21	D8	C8	B9/C9
6	SEG6	F3	G3	A3/D3	22	SEG22	R8	G8	B8
7	SEG7	B3	C3	E4	23	SEG23	'/"/M4	E8/F8	A8
8	SEG8	F4	G4	D4	24	SEG24	D7	C7	L1
9	SEG9	A4	B4	C4	25	SEG25	G7	B7	A7
10	SEG10	F5	E5	D5	26	SEG26	E7	COL2	F7
11	SEG11	A5	G5	C5	27	SEG27	M3	M2	M1
12	SEG12	B5	F6	E6	28	SEG28	Sc	Sb	Sa
13	SEG13	A6	G6	D6	29	SEG29	Sd	Se	Sf
14	SEG14	D12	B6	C6	30	SEG30	Si	Sh	Sg
15	SEG15	C12	G12	B12	31	SEG31	Da	Db	Dc
16	SEG16	E12	F12	A12	32	SEG32	-	Dd	De

ALARM OUTPUT WAVEFORM

PAD DIAGRAM

PAD LOCATION

1	COM1	7	9 0	20	ALB	- 0	- 0	39	SEG12	9 0	- 0
2	VSS	-	9 0	21	T1	- 0	-910	40	SEG13	980	-350
3	GND	-190	910	22	COM3	-980	-910	41	SEG14	980	-210
4	IKO	-320	910	23	SEG32	-840	-910	42	SEG15	980	-70
5	XO	-450	910	24	SEG31	-710	-910	43	SEG16	980	70
6	XI	-580	910	25	SEG30	-580	-910	44	SEG17	980	210
7	VCC	-710	910	26	SEG29	-450	-910	45	SEG18	980	350
8	AC	-840	910	27	SEG28	-320	-910	46	SEG19	980	490
9	L	-980	910	28	SEG1	-190	-910	47	SEG20	980	623
10	IND	-980	770	29	SEG2	-60	-910	48	SEG21	980	753
11	DIS	-980	640	30	SEG3	70	-910	49	SEG22	980	910
12	T3	-980	510	31	SEG4	200	-910	50	SEG23	850	910
13	VDD	-980	380	32	SEG5	330	-910	51	SEG24	720	910
14	M	-980	240	33	SEG6	460	-910	52	SEG25	590	910
15	D	-980	100	34	SEG7	590	-910	53	SEG26	460	910
16	S	-980	-40	35	SEG8	720	-910	54	SEG27	330	910
17	T2	-980	-180	36	SEG9	850	-910	55	COM2	200	910
18	AL	-918	-406	37	SEG10	980	-753
19	VSS	-918	-571	38	SEG11	980	-623

NOTE: The chip substrate is electrically connected to Vdd

APPLICATION CIRCUIT