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1745D–ATARM–04-Nov-05
AT91M55800A
2. Pin Configurations
Notes: 1. Analog pins
2. Battery backup pins
Table 2-1. Pin Configuration for 176-lead LQFP Package
Pin AT91M55800A Pin AT91M55800A Pin AT91M55800A Pin AT91M55800A
1 GND 45 GND 89 GND 133 GND
2 GND 46 GND 90 GND 134 GND
3 NCS0 47 D8 91 PA19/RXD1 135 NCS4
4 NCS1 48 D9 92 PA20/SCK2 136 NCS5
5 NCS2 49 D10 93 PA21/TXD2 137 NCS6
6 NCS3 50 D11 94 PA22/RXD2 138 NCS7
7 NLB/A0 51 D12 95 PA23/SPCK 139 PB0
8 A1 52 D13 96 PA24/MISO 140 PB1
9 A2 53 D14 97 PA25/MOSI 141 PB2
10 A3 54 D15 98 PA26/NPCS0/NSS 142 PB3/IRQ4
11 A4 55 PB19/TCLK0 99 PA27/NPCS1 143 PB4/IRQ5
12 A5 56 PB20/TIOA0 100 PA28/NPCS2 144 PB5
13 A6 57 PB21/TIOB0 101 PA29/NPCS3 145 PB6/AD0TRIG
14 A7 58 PB22/TCLK1 102 VDDIO 146 PB7/AD1TRIG
15 VDDIO 59 VDDIO 103 GND 147 VDDIO
16 GND 60 GND 104 VDDPLL 148 GND
17 A8 61 PB23/TIOA1 105 XIN 149 PB8
18 A9 62 PB24/TIOB1 106 XOUT 150 PB9
19 A10 63 PB25/TCLK2 107 GNDPLL 151 PB10
20 A11 64 PB26/TIOA2 108 PLLRC 152 PB11
21 A12 65 PB27/TIOB2 109 VDDBU
(2)
153 PB12
22 A13 66 PA0/TCLK3 110 XIN32
(2)
154 PB13
23 A14 67 PA1/TIOA3 111 XOUT32
(2)
155 PB14
24 A15 68 PA2/TIOB3 112 NRSTBU
(2)
156 PB15
25 A16 69 PA3/TCLK4 113 GNDBU
(2)
157 PB16
26 A17 70 PA4/TIOA4 114 WAKEUP
(2)
158 PB17
27 A18 71 PA5/TIOB4 115 SHDN
(2)
159 NWDOVF
28 A19 72 PA6/TCLK5 116 GNDBU
(2)
160 MCKO
29 VDDIO 73 VDDIO 117 VDDA
(1)
161 VDDIO
30 GND 74 GND 118 AD0
(1)
162 GND
31 A20 75 PA7/TIOA5 119 AD1
(1)
163 PB18/BMS
32 A21 76 PA8/TIOB5 120 AD2
(1)
164 JTAGSEL
33 A22 77 PA9/IRQ0 121 AD3
(1)
165 TMS
34 A23 78 PA10/IRQ1 122 AD4
(1)
166 TDI
35 D0 79 PA11/IRQ2 123 AD5
(1)
167 TDO
36 D1 80 PA12/IRQ3 124 AD6
(1)
168 TCK
37 D2 81 PA13/FIQ 125 AD7
(1)
169 NTRST
38 D3 82 PA14/SCK0 126 ADVREF
(1)
170 NRST
39 D4 83 PA15/TXD0 127 DAVREF
(1)
171 NWAIT
40 D5 84 PA16/RXD0 128 DA0
(1)
172 NOE/NRD
41 D6 85 PA17/SCK1 129 DA1
(1)
173 NWE/NWR0
42 D7 86 PA18/TXD1/NTRI 130 GNDA
(1)
174 NUB/NWR1
43 VDDCORE 87 VDDCORE 131 VDDCORE 175 VDDCORE
44 VDDIO 88 VDDIO 132 VDDIO 176 VDDIO