MiTAC 7521 PLUS/N Vddref CPUCLK0, CPUCLK1 Vddsdr CPUCLK2, Vddsdr FS1/PCICLK0, Vddsdr FS2/PCICLK1

1 2 3 4 5 6 7 8

A

B

C

D

+3V

2 1

L47

1 2

BEAD_130Z/100M

C201

10U

1206

16V

1

CLOCK SYNTHESIZER AND DRIVER

									L39
						+3V			1	2								VDDSDR1
							1	BEAD_130Z/100M			1	C137	1		1	C126	1	C173
			VDDPCI					C112						C174
								10U				0.1U		0.01U		1000P		4.7U
								1206				0603		0805		0603		0805
1		1	1				2	16V			2	16V	2		2		2	+80-20%		SELECT CPU VOLTAGE
	C177	C172		C184																(2.5V)
	0.1U	0.01U		4.7U
	0603	0603		0805
2	16V	2	2	+80-20%									GND										+3V
									L37																	Near Target Chip
		GND				+3V			1	2								VDDSDR2				R89
							1	BEAD_130Z/100M			1		1		1		1				CPUV 1		2
								C109				C135		C136		C134		C125			10K		0603		GND
								10U				0.1U		0.01U		1000P		4.7U
								1206				0603		0603		0603		0805							1		1
							2	16V			2	16V	2		2		2	+80-20%								C114		C113
																										10P		10P
																									2	0603	2	0603
													GND								PLACE THESE RESISTORS
															U15
					L45										ICS9248-102						NEAR CLOCK GENERATOR
				+3V	1	2								1	VDDREF				CPUCLK0	46	R83	22	1	2	0603
																				45	R84	22	1	2	0603
					BEAD_130Z/100M					VDDSDR1									CPUCLK1
														15						43
															VDDSDR				CPUCLK2
														19
															VDDSDR
				1		1		1						27
										VDDSDR2					VDDSDR						FS1
					C179		C180		C171					30						7
															VDDSDR				FS1/PCICLK0
					10U		10U		0.1U					36						8	FS2
															VDDSDR				FS2/PCICLK1
					1206		1206		0603					42						9	R131	22	1	2	0603
				2	16V	2	16V	2	50V						VDDSDR				PCICLK2	11	R132	22	1	2	0603
												VDDPCI							PCICLK3
														6						12	R133	22	1	2	0603
															VDDPCI				PCICLK4
																				13	R144	22	1	2	0603
																			PCICLK5
																				14	R145	22	1	2	0603
																			PCICLK6

3GNDREF

											16	GNDSDR			FS3/REF0	2	FS3 R135	0	1	2			0603
											22					48
							GND					GNDSDR			REF1		R96	22					0603
											33								1	2
												GNDSDR
											39						R93	22	1	2			0603
												GNDSDR
											10	GNDPCI		24_48/CPU2V_3V#		25	CPUV R91	22	1	2			0603
																26	FS0 R90	22	1	2			0603
															FS0/48MHZ
											GND				SDRAM0	17	R124		1	2	0		0603
																18
					L36										SDRAM1		R125				0		0603
																20			1	2
															SDRAM2
					1	2					47					21	R126		1	2	0		0603
		+2.5V										VDDLCPU			SDRAM3
																28	R86		1	2	0		0603
															SDRAM4
			1	BEAD_130Z/100M			1		1		1					29	R85		1	2	0		0603
															SDRAM5
				C282				C121		C129	C133					31
															SDRAM6
				0.1U				10U		0.1U	100P					32
															SDRAM7
				0603				1206		0603	0603					34
															SDRAM8
			2	16V			2	16V	2	16V	2					35
															SDRAM9
											44					37
												GNDL			SDRAM10
																38
															SDRAM11											1
															SDRAM12	40											C188
																41											10P
															SDRAM13
											GND																0603
																										2
				6,9	SMBCLK				SMBCLK		24	SCLK
									SMBDATA		23
				6,9	SMBDATA							SDATA
												X1		X2
												4		5	(5 OPTIONS)											GND
											14.318M_TXC7X5		X3		1:ICS9248-102 (ICS)
												1	3		2:ICW207 (IC Works)
													2		3:PLL52C72-31 (Phase Link)
													4		4:W83194R-630 (Winbond)
												1		1	5:RTM540-630 (Realtek)
												C161			C153
												10P			10P
												0603			0603
												2		2
												GND		GND
																				+3V
																				R109		1			2	2.7K/NA	0603
																				R110		1			2	2.7K/NA	0603
																				R238		1			2	2.7K/NA	0603
																				R122		1			2	2.7K/NA	0603
	9248-102 FREQUENCY SUPPORT
(FS3)	(FS2)	(FS1)	(FS0)		CPU	SDRAM			PCI	REF							+3V
SW4	SW3	SW2	SW1		(MHz)	(MHz)			(MHz)	(MHz)																SW3
0	0	0	0		66.7	100			33.33	14.318								R128	1	2	2.7K		0603	1			8	FS0
0	0	0	1		100	100			33.33	14.318								R129	1	2	2.7K		0603	2			7	FS1
0	0	1	0		150	100			37.59	14.318								R130	1	2	2.7K		0603	3			6	FS2
0	0	1	1		133	100			33.33	14.318								R161	1	2	2.7K		0603	4			5	FS3
0	1	0	0		66	133			33.33	14.318
0	1	0	1		100	133			33.33	14.318																HDS404E
0	1	1	0		100	150			37.59	14.318
0	1	1	1		133	133			33.33	14.318
1	0	0	0		66.7	66.7			33.33	14.318
1	0	0	1		83.3	83.3			27.78	14.318
1	0	1	0		90	90			30	14.318
1	0	1	1		95	95			31.67	14.318
1	1	0	0		95	126.67			31.67	14.318
1	1	0	1		112	112			37.34	14.318
1	1	1	0		166	111			27.67	14.318
1	1	1	1		166	166			27.67	14.318
0:OFF
1:ON

2 3 4 5

1 C203

10P

0603 2

2 1

GND

1 C202

10P

0603 2

1 C116

10P

0603 2

GND

6

A

1	1	C192	1
	C193		C191
	10P	10P	10P
	0603	0603	0603
2	2		2

CPUCLK	CPUCLK	3
HCLK_CPU
	HCLK_CPU		2
630PCLK	630PCLK	4
PCLKCARD
	PCLKCARD		14
LPC2ISACLK
	LPC2ISACLK		18
	SIS900CLK	12
	AGPCLK	5

B

CLK14_VGA	CLK14_VGA		5
ISA14M	ISA14M	18
APICCLK
	APICCLK	2
USB_48MHZ	USB_48MHZ		6
IO_48MHZ
	IO_48MHZ	19
630SDCLK	630SDCLK	3
SDRAMCLK2	SDRAMCLK2		10
SDRAMCLK3
	SDRAMCLK3		10
SDRAMCLK0
	SDRAMCLK0		9
SDRAMCLK1
	SDRAMCLK1		9

1	1	1	C119	1	1	C145	1	1
C190	C189	C118			C142		C117	C199
10P	10P	10P/NA	10P		10P	10P	10P	10P
0603	0603	0603	0603		0603	0603	0603	0603
2	2	2		2	2		2	2
GND	GND	GND		GND	GND		GND	GND

TP13

TOUCHPAD_METAL

1 C

GND

BSEL1	2
BSEL0	2

1 1

R160 R156

10K 10K

06030603

2 2

R127	1	2	10K	0603
R157	1	2	10K	0603
R158	1	2	10K	0603
R94	1	2	10K	0603

GND

D

		MITAC INTERNATIONAL CORP
	Title	7521 plus
	Size	Document Number					Rev
	C	SD411670000002					02
	Date:	Tuesday, May 08, 2001	Sheet	8	of	30
7				8