... the analog plusTM compa
EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone
PRELIMINARY
DVDD
1 | S1 |
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24 |
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2 | 23 | S2 | R8 | 2.2K |
3 | 22 | S1 | R9 | 2.2K |
4 | 21 | S0 | R10 | 2.2K |
5 | 20 | D7 | R11 | 2.2K |
6 | 19 | D6 | R12 | 2.2K |
7 | 18 | D5 | R13 | 2.2K |
8 | 17 | D4 | R14 | 2.2K |
9 | 16 | D3 | R15 | 2.2K |
10 | 15 | D2 | R16 | 2.2K |
11 | 14 | D1 | R17 | 2.2K |
12 | 13 | D0 | R18 | 2.2K |
SW
DGND
DVDD
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| C14 |
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| C15 |
| C16 |
| C17 |
| C18 |
| C19 |
| C20 | |||||||
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| 10uF |
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DGND
SYNC |
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| 82 | IO63 |
WCLK2 | R4 | 33 | 81 | IO62 |
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| 80 | IO61 |
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| 79 | IO60 |
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| 78 | IO59 |
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| 77 | IO58 |
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| 76 | IO57 |
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| 75 | IO56 |
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| 73 | IO55 |
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| 72 | IO54 |
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| 71 | IO53 |
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| 70 | IO52 |
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| 69 | IO51 |
RCLK | R19 | 33 | 68 | IO50 |
ACK |
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| 67 | IO49 |
RST | R20 | 33 | 66 | IO48 |
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| 65 | CLK3 |
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| 62 | CLK2 |
D7 |
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| 61 | IO47 |
WCLK1 | R21 | 33 | 60 | IO46 |
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| 59 | IO45 |
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| 58 | IO44 |
D3 |
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| 57 | IO43 |
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| 56 | IO42 |
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| 55 | IO41 |
S1 |
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| 54 | IO40 |
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| 52 | IO39 |
DVDD |
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| 51 | IO38 |
JP2 |
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1 |
| SP_PB | 49 | IO36 |
2 |
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3 |
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| 48 | IO35 |
HEADER 3 DGND D6 |
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| 47 | IO34 |
S0 |
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| 46 | IO33 |
ADCCLK | R23 | 33 | 45 | IO32 |
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| 41 | I1 |
DVDD
84 | 63 | 44 | 42 | 21 | 2 |
DVDD6 | DVDD5 | DVDD4 | DVDD3 | DVDD2 | DVDD1 |
MACH435
DGND8 | DGND7 | DGND6 | DGND5 | DGND4 | DGND3 | DGND2 | DGND1 |
74 | 64 | 53 | 43 | 32 | 22 | 11 | 1 |
I2
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
IO8
IO9
IO10
IO11
IO12
IO13
IO14
IO15
CLK0
CLK1
IO16
IO17
IO18
IO19
IO20
IO21
IO22
IO23
IO24
IO25
IO26
IO27
IO28
IO29
IO30
IO31
U4
MACH435
83
3 R5 33
DB5/SCLK
4 R6 33
DB6/SDATA
5 R7 33
DB7/LD
6
STROBE
8
S2
9
AUTOFD
12
13
14
15
D5
16
D1
17 |
| D4 | DVDD |
| Oscillator |
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19 |
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20 |
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| 3 | OUT | GND | 2 |
23 |
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24 |
| SP | C12 | C13 |
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25 |
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| 1uF | 0.1uF |
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26 |
| WEN |
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27 |
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| DGND |
28 |
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29 |
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30 |
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31 |
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33 R22 | 33 | CISCLK |
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34 |
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35
36
BLED
38
RLED
39
GLED
40
H:\PROJECT\ORCADWIN\9827\9827REFB.DSN |
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Title | XRD9827 REFERENCE BOARD |
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Size | Document Number | Rev |
B |
| B |
DGND
19
| XRD9827REF |
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Date: | Thursday, July 23, 1998 | Sheet | 2 | of | 3 |
