MiTAC 7521 PLUS/N X1CLKIN, SIN1, BOUT1/SOUT1, AEN RTS1#/BADDR0, DTR1#, CTS1#, DSR1#, DCD1#, IRSL1

1 2 3 4 5 6 7 8

A

B

SUPER I/O

									CFG0=LOW (DEFAULT):			16 BIT ADDRESS DECODE
									CFG1=HIGH (10K PULL-HIGH):			11-BIT ADDRESS/COM2
										U27
										PC97338VJG
							R205			PQFP100_0.5MM
8	IO_48MHZ				1			2	5		X1(CLKIN)
						0/NA		0603B_DFS				SIN1	73	COM1RXD
									100				71	COM1TXD
18		RSTDRV							18		MR	BOUT1/SOUT1	72	COM1RTS#
18		AEN									AEN	RTS1#/BADDR0
18,20,22	SA[0..15]				SA[0..15]							DTR1#	69	COM1DTR#
								SA0	28		A0	CTS1#	70	COM1CTS#
								SA1	27				74	COM1DSR#
								SA2	26		A1	DSR1#	75	COM1DCD#
								SA3	25		A2	DCD1#	68	COM1RI#
											A3	RI1#
								SA4	24				6
											A4	IRSL1		IRRXA
								SA5	23				65
											A5	SIN2/IRRX1
								SA6	22				63	IRTX
											A6	BOUT2/SOUT2
								SA7	21
											A7
								SA8	20				33		RDATA#	13
								SA9	19		A8	RDATA#	37
								SA10	29		A9	WDATA#	36		WDATA#	13
											A10	WGATE#			WGATE#	13
								SA11	60				32
											A11/R12#	HDSEL#			HDSEL#	13
								SA12	61				39
											A12/DTR2#	DIR#			DIR#	13
								SA13	62				38
											A13/CTS2#	STEP#			STEP#	13
								SA14	64				35
								SA15	67		A14/RTS2#	TRK0#	45		TRK0#	13
				SD0[0..7]							A15/DCD2#	INDEX#			INDEX#	13
													30
18,20,22 SD[0..7]								SD0				DSKCHG#			DSKCHG	13
									15		D0	WP#	34		WPROT#	13
								SD1	14				44
								SD2	13		D1	MTR0#	41		MTR0#	13,20
											D2	MTR1#/IDLE
								SD3	12				42		DRV0#	13
								SD4	11		D3	DR0#	43
											D4	DR1#/PD
								SD5	10				46
								SD6	9		D5	DENSEL/ADRATE1	50
								SD7	8		D6	DRATE0/MSEN0
											D7	PD0/INDEX#	92	D/LPD0
									17				91	D/LPD1
18,20,22		IOR#									RD#	PD1/TRK0#
									16				90	D/LPD2
18,20,22		IOW#									WR#	PD2/WP#
									51				89	D/LPD3
18,22	IOCHRDY										IOCHRDY	PD3/RDATA#
									1				87	D/LPD4
18,22	ZEROWS#								99		CS1#/ZWS#	PD4/DSKCHG#	86	D/LPD5
18,22		IRQ3									IRQ3	PD5/MSEN0
									98				85	D/LPD6
18,22		IRQ4									IRQ4	PD6/DRATE0
									96				84	D/LPD7
18,22		IRQ5									IRQ5/ADRATE0	PD7/MSEN1
									95				79	D/SLIN#
18,22		IRQ6									IRQ6	SLIN#/STEP#
									94				93	D/STB#
18,22		IRQ7									IRQ7	STB#/WRITE#
									55				76	D/AFD#
18,22		IRQ9									IRQ9	AFD#/DSTRB#
									56				78	D/INIT#
18,22		IRQ10									IRQ10	INIT#/DIR#
									57				83	D/ACK#
18,22		IRQ11									IRQ11	ACK#/DR1#
								IRMODE	66				77	D/ERR#
											IRQ12/DSR2#	ERR#/HDSEL#
									58				80	D/SLCT
18,22		DREQ3									IRQ15/SIRQI1	SLCT/WGATE#	81	D/PE
												PE/WDATA#
									49				82	D/BUSY
18		DACK3#			PIO_PNF#				47		CS0#/SIRQI2	BUSY/WAIT#
											DRV2#/SIRQI3
									4
18			TC						53		TC
18		DACK0#									DACK0#
									52
18		DACK1#									DACK1#
									3
18		DACK2#									DACK2#
									54
18,22		DREQ0							31		DRQ0
18,22		DREQ1									DRQ1
									2
18,22		DREQ2									DRQ2

										HP FIR MODULE HSDL-3600#007		+5V
							+3VS_FIR					A
												D1
										+3V	+3VS_FIR	RLS4148
							C19					MLL34B
											JL508
												K
						1	2
													RPSOA_8
											JP_NET
							4.7U	1206					RP4.7KX4
											JP_SMT4_DFS		5	4	D/STB#
							C12	0.47U					6	3	D/AFD#
						1	2	0805			JL509		7	2	D/INIT#
									U501				8	1	D/SLIN#
+3VS_FIR								3V_FIR 1							A
			FIR_GND						VCC		JP_NET		RP6
								2
						IRMODE			AGND		JP_SMT4_DFS
								3
									FIR_SEL
						IRMD0		4		FIR_GND	GND		RPSOA_8
		18	IRMD0						MD0
						IRMD1		5					RP4.7KX4
		18	IRMD1						MD1						D/ERR#
					1		2	6					5	4
	3V_FIR								NC
				R17	0/NA	0603B_DFS		7					6	3	D/ACK#
									GND
								8					7	2	D/BUSY
									RXD
								9					8	1	D/PE
									TXD
	1		2					10
									LEDA				RP1
	R21	4.7	1206					11	GND1		JL502
							FIR_GND		HSDL-3600		JP_NET		R4		D/SLCT
	1		2						FIR_HSDL3600_007				1	2
											JP_SMT4_DFS	4.7K		0603
	R24	4.7	1206								JL506
												D/LPD0	RP2
													1	10
											JP_NET	D/LPD1	2	9	D/LPD3
											JP_SMT4_DFS	D/LPD2	3	8	D/LPD6
										PIO_GND	GND	D/LPD7	4	7	D/LPD5
													5	6	D/LPD4
													1K*8	1206
															J505
		RPSOA_8C													26
		120OHM/100MHZ					CA6		P_STB#					1
D/STB#	4		5	P_STB#		8		1	P_D/AFD#					14
D/AFD#	3		6	P_D/AFD#		7		2	P_LPD0					2
D/LPD0	2		7	P_LPD0		6		3	P_D/ERR#					15
D/ERR#	1		8	P_D/ERR#		5		4	P_LPD1					3
									P_D/INIT#					16
		FA4					100PX4		P_LPD2					4	B
							RPSOA_8C		P_D/SLIN#					17
		RPSOA_8C							P_LPD3					5
D/LPD1		120OHM/100MHZ		P_LPD1			CA5		P_LPD4					18
	4		5			8		1						6
D/INIT#	3		6	P_D/INIT#		7		2						19
D/LPD2	2		7	P_LPD2		6		3	P_LPD5					7
D/SLIN#	1		8	P_D/SLIN#		5		4	P_LPD6					20
		FA3					100PX4							8
														21
		RPSOA_8C					RPSOA_8C		P_LPD7					9
														22
D/LPD3		120OHM/100MHZ		P_LPD3			CA4		P_D/ACK#					10
	4		5			8		1						23
D/LPD4	3		6	P_LPD4		7		2	P_D/BUSY					11
D/LPD5	2		7	P_LPD5		6		3						24
D/LPD6	1		8	P_LPD6		5		4	P_D/PE					12
		FA2					100PX4		P_D/SLCT					25
														13
		RPSOA_8C					RPSOA_8C
															27
D/LPD7		120OHM/100MHZ		P_LPD7			CA3
	4		5			8		1							25P/FM
D/ACK#	3		6	P_D/ACK#		7		2
D/BUSY	2		7	P_D/BUSY		6		3						PIO_GND

C

VDDB VSSB		VDDC VSSC		VSSD	VSSE
48	40	97	7	88	59

(+3VS)

+3V

1	C242	1	C229
	0.1U		0.1U
2	0603B	2	0603B

GND

(+3VS)

+3V
	RP39
8	1	PIO_PNF#
7	2
6	3	COM1RI#
5	4	COM1DSR#
	RP10KX4
	RPSOA_8
+3V

D/PE	1	8	P_D/PE	5		2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
						4																PIO_GND
	FA1			100PX4
				RPSOA_8C		JO503 JO504 JO505 JO506 JO507 JO508 JO509 JO510 JO511 JO512 JO513 JO514 JO515 JO516 JO517 JO518 JO519
D/SLCT	L1		P_D/SLCT	C5
	1	2		1	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
	BEAD_120Z/100M			100P
	0805C			0603		PIO_GND
																						C
							PIO_GND
										J507
											10

D

6,22 RS232_OFF#

2

C3	2	1
0.1U
0603B
C7	2	1
0.1U
0603B
	COM1RTS#
	COM1TXD
+3V	COM1DTR#
	COM1DCD#
1	COM1DSR#
	COM1RXD
R1	COM1CTS#
100K	COM1RI#
0603B
2
3
Q1

DTC144WK

SOT23AN_1

					1	C13
		3	U1			0.1U
					2	0603B
6	C1+	VCC		1
			V+
24	C1-
				25
2			V-
	C2+
4	C2-		T1OUT	22	D/RTS#
				21	D/TXD
			T2OUT	20	D/DTR#
7	T1IN		T3OUT
8
	T2IN				D/DCD#
9				19
	T3IN		R1IN
				18	D/DSR#
10			R2IN	17	D/RXD
	R1OUT		R3IN
11				16	D/CTS#
	R2OUT		R4IN
12				15	D/RI#
	R3OUT		R5IN
13
	R4OUT
14	R5OUT		C3+	28	1	2
23	SD	GND	C3-	26
5
	EN/
		27	ADM3311ARU
			TSSOP_SSOP28
		GND

1	C18
	0.1U
2	0603B
GND
1	C2
	0.1U
2	0603B

GND

C1

0.1U

0603B

D/RI#

D/DTR#

D/CTS#

D/TXD

D/RTS#

D/RXD

D/DSR#

D/DCD#

2 2 2 2 2 2 2 2

JO520 JO521 JO522 JO523 JO524 JO525 JO526 JO527

1 1 1 1 1 1 1 1

GND

5
9
4
8
3
7
2	JL505
6
1
11	JP_NET	JP_SMT4_DFS
	JL501
D-FM/9P/1.3875MM	JP_NET	JP_SMT4_DFS
SIO_GND	SIO_GND	GND
		D
	MITAC INTERNATIONAL CORP.
	Title
	7521 plus

RS232/SIO	GND
	1
1		3	4
	2

5 6

	Size	Document Number					Rev
	C	SD411670000002					02
	Date:	Tuesday, May 08, 2001	Sheet	19	of	30
7				8