Pin Description
Pinouts
Figure 4.
AT85C51SND3Bx 100-pin QFP Package
P1.3/KIN3
P1.2/KIN2
P1.1/KIN1
P1.0/KIN0
BVDD
DCPWR
(1)
BVSS
DCLI
(1)
LVDD
(1)
RLVDD
HVDD
UVCC
VSS
CVSS
P3.6/UVCON
P3.7/UID
ULVDD
DMF
DPF
UVSS
UHVDD
DPH
DMH
UVSS
UBIAS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
P1.4
P1.5
P1.6
P1.7
P2.0/SDINS
P2.1/SDLCK
P2.2/SDCMD
P2.3/SDCLK
P2.4/SDDAT0
P2.5/SDDAT1
P2.6/SDDAT2
P2.7/SDDAT3
IOVSS
IOVDD
NFWP
NFCE0
P4.4/NFCE1/SMLCK
P4.5/NFCE2/SMINS
P4.6/NFCE3/SMCE
NFCLE
NFALE
NFWE
NFRE
NFD0
NFD1
AT85C51SND3Bx
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
NFD2
NFD3
NFD4
NFD5
NFD6
NFD7
P0.0/SD0/LD0
P0.1/SD1/LD1
P0.2/SD2/LD2
P0.3/SD3/LD3
P0.4/SD4/LD4
P0.5/SD5/LD5
P0.6/SD6/LD6
P0.7/SD7/LD7
IOVSS
IOVDD
P3.0/RXD/MISO
P3.1/TXD/MOSI
P3.2/INT0/RTS/SCK
P3.3/INT1/CTS/SS
P3.4/T0
P5.3/SWR/LWR/LRW
P5.2/SA0/LA0/LRS
P5.1/SCS/LCS
P5.0/SRD/LRD/LDE
Notes:
1. Leave these pins unconnected for AT85C51SND3B1 & AT85C51SND3B2 products
2. Leave these pins unconnected for AT85C51SND3B1 product
6
AT85C51SND3Bx
7632A–MP3–03/06
UPVDD
UPVSS
AVDD1
AVSS1
MICBIAS
MICIN
LINR
LINL
AVCM
AREF
OUTR
(2)
OUTL
(2)
AVDD2
AVSS2
APVSS
X1
X2
APVDD
OCDT/ISP
OCDR
P4.3/DSEL
P4.2/DDAT
P4.1/DCLK
P4.0/OCLK
RST
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
ATMEL [ ATMEL CORPORATION ]
