Rainbow Electronics AT76C551 - Manual (Page 6)

6
AT76C551
1612D–08/01
Pin Summary – Pin Assignment in Numerical Order
Pin # Pin Name Type Pin # Pin Name Type Pin # Pin Name Type
1 VCC Digital Supply 38 AGND Analog Ground 75 MEM_DATA5 B
2 EXT_13_MHz I 39 RSSI I 76 MEM_DATA4 B
3 EXT_13_MHz_OUT O 40 AVCC 77 MEM_DATA3 B
4 GND Digital Ground 41 VC_IN LOG 1 78 MEM_DATA2 B
5 EXT_OSC I 42 AGND Analog Ground 79 MEM_DATA1 B
6 GND Digital Ground 43 VC_OUT LOG O 80 MEM_DATA0 B
7 TC_ENABL O 44 AVCC 81 GND Digital Ground
8 TC_DATA O 45 ADO O 82 VCC Digital Supply
9 TC_CLK O 46 ADI I 83 MEM_ADDR18 O
10 VCC Digital Supply 47 GND Digital Ground 84 MEM_ADDR17 O
11 TC_TXON O 48 ACLK O 85 MEM_ADDR16 O
12 TXPIN O 49 ABCLK O 86 MEM_ADDR15 O
13 TC_PUPLL O 50 ASYNC O 87 MEM_ADDR14 O
14 TC_PURXTX O 51 VCC Digital Supply 88 MEM_ADDR13 O
15 TC_PUVCO O 52 ACLK_IN I 89 MEM_ADDR12 O
16 TC_I_CP_SW O 53 ABCLK_IN I 90 MEM_ADDR11 O
17 TC_PUREG O 54 ASYNC_IN I 91 MEM_ADDR10 O
18 TC_RXON O 55 CSFL16 O 92 MEM_ADDR9 O
19 TC_LD I 56 CSSR O 93 MEM_ADDR8 O
20 GND Digital Ground 57 CSFL O 94 MEM_ADDR7 O
21 CLK_PXPIN I 58 CSSFH 95 GND Digital Ground
22 VCC Digital Supply 59 CSFLH O 96 VCC Digital Supply
23 RXPIN I 60 NWRITE O 97 MEM_ADDR6 O
24 RXMODE I 61 NRED 98 MEM_ADDR5 O
25 RXF_PD O 62 NWORD I 99 MEM_ADDR4 O
26 RXF_CLK O 63 MEM_DATAH7 B 100 MEM_ADDR3 O
27 RXF_OE_ O 64 MEM_DATAH6 B 101 MEM_ADDR2 O
28 RXF_D7 I 65 MEM_DATAH5 B 102 MEM_ADDR1 O
29 RXF_D6 I 66 MEM_DATAH4 B 103 MEM_ADDR0 O
30 RXF_D5 I 67 MEM_DATAH3 B 104 U_RTS_ O
31 RXF_D4 I 68 GND Digital Ground 105 U_DTR_ O
32 RXF_D3 I 69 VCC Digital Supply 106 USART_TX O
33 GND Digital Ground 70 MEM_DATAH2 B 107 U_RI_ I
34 RXF_D2 I 71 MEM_DATAH1 B 108 U_CTS_ I
35 RXF_D1 I 72 MEM_DATAH0 B 109 GND Digital Ground
36 RXF_D0 I 73 MEM_DATA7 B 110 U_DSR_ I
37 VDDAC 74 MEM_DATA6 B 111 USART_RX I