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RC7101
PRODUCT SPECIFICATION
2
A
Pin Assignments
Pin Descriptions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
Pin#
Pin Name
Pin#
Pin Name
Pin#
Pin Name
Pin#
Pin Name
1
2
3
4
5
6
7
8
9
10
11
12
NC
NC
VDD
SDRAM0
SDRAM1
VSS
VDD
SDRAM2
SDRAM3
VSS
BUF_IN
VDD
13
14
15
16
17
18
19
20
21
22
23
24
SDRAM4
SDRAM5
VSS
VDD
SDRAM6
SDRAM7
VSS
VDD
SDRAM16
VSS
VDD
SDATA
25
26
27
28
29
30
31
32
33
34
35
36
SCLOCK
VSS
VSS
SDRAM17
VDD
VSS
SDRAM8
SDRAM9
VDD
VSS
SDRAM10
SDRAM11
37
38
39
40
41
42
43
44
45
46
47
48
VDD
OE
VSS
SDRAM12
SDRAM13
VDD
VSS
SDRAM14
SDRAM15
VDD
NC
NC
48 Pin SSOP
Pin Name
BUF_IN
SDRAM0:3
SDRAM4:7
SDRAM8:11
SDRAM12:15
SDRAM16:17
OE
SDATA
SCLOCK
VDD
Pin Number
11
4, 5, 8, 9
13, 14, 17, 18
31, 32, 35, 36
40, 41, 44, 45
21, 28
38
24
25
3, 7, 12, 16, 20,
29, 33, 37, 42, 46
23
6, 10, 15, 19, 22,
27, 30, 34, 39, 43
26
1, 2, 47, 48
Type
IN
OUT
OUT
OUT
OUT
OUT
IN
I/O
IN
Power
Pin Function Description
Input for clock buffers
SDRAM Byte 0 clock outputs
SDRAM Byte 1 clock outputs
SDRAM Byte 2 clock outputs
SDRAM Byte 3 clock outputs
SDRAM clock outputs
Output enable which will tri-state all the outputs when held low
Serial Data Line
Serial Clock input
Power supply at 3.3V for SDRAM buffers
VDD
VSS
Power
Ground
Power supply at 3.3V for I
2
C circuit
Ground for SDRAM buffers
VSS
NC
Ground
NC
Ground for I
2
C circuit
No Connections.