Pin Description
Pinouts
Figure 4. AT85C51SND3Bx 100-pin QFP Package
P1.3/KIN3
P1.2/KIN2
P1.1/KIN1
P1.0/KIN0
BVDD
1
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
2
NFD3
3
NFD4
4
NFD5
5
NFD6
DCPWR(1)
NFD7
6
BVSS
7
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
DCLI(1)
LVDD(1)
RLVDD
HVDD
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
UVCC
AT85C51SND3Bx
VSS
CVSS
P3.6/UVCON
P3.7/UID
ULVDD
DMF
IOVDD
P3.0/RXD/MISO
P3.1/TXD/MOSI
P3.2/INT0/RTS/SCK
P3.3/INT1/CTS/SS
P3.4/T0
DPF
UVSS
UHVDD
DPH
P5.3/SWR/LWR/LRW
P5.2/SA0/LA0/LRS
P5.1/SCS/LCS
P5.0/SRD/LRD/LDE
DMH
UVSS
UBIAS
Notes: 1. Leave these pins unconnected for AT85C51SND3B1 & AT85C51SND3B2 products
2. Leave these pins unconnected for AT85C51SND3B1 product
6
AT85C51SND3Bx
7632A–MP3–03/06
ATMEL [ ATMEL ]
