AS4C4M16SA

64M – (4M x 16 bit) Synchronous DRAM (SDRAM), TSOP-II-54

Schematic Symbol

Pin Configuration (54 pins)

Pin	Name	Type
1	VDD	power_in
2	DQ0	bidirectional
3	VDDQ	power_in
4	DQ1	bidirectional
5	DQ2	bidirectional
6	VSSQ	power_in
7	DQ3	bidirectional
8	DQ4	bidirectional
9	VDDQ	passive
10	DQ5	bidirectional
11	DQ6	bidirectional
12	VSSQ	passive
13	DQ7	bidirectional
14	VDD	passive
15	LDQM	input
16	~{WE}	input
17	~{CAS}	input
18	~{RAS}	input
19	~{CS}	input
20	BA0	input
21	BA1	input
22	A10/AP	input
23	A0	input
24	A1	input
25	A2	input
26	A3	input
27	VDD	passive
28	VSS	power_in
29	A4	input
30	A5	input
31	A6	input
32	A7	input
33	A8	input
34	A9	input
35	A11	input
36	NC	no_connect
37	CKE	input
38	CLK	input
39	UDQM	input
40	NC/RFU	no_connect
41	VSS	passive
42	DQ8	bidirectional
43	VDDQ	passive
44	DQ9	bidirectional
45	DQ10	bidirectional
46	VSSQ	passive
47	DQ11	bidirectional
48	DQ12	bidirectional
49	VDDQ	passive
50	DQ13	bidirectional
51	DQ14	bidirectional
52	VSSQ	passive
53	DQ15	bidirectional
54	VSS	passive

Footprint

Confirmed

Package_SO/TSOP-II-54_22.2x10.16mm_P0.8mm

Pad Layout

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

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

51

52

53

54

Pads (54)

Number	Type
1	smd
2	smd
3	smd
4	smd
5	smd
6	smd
7	smd
8	smd
9	smd
10	smd
11	smd
12	smd
13	smd
14	smd
15	smd
16	smd
17	smd
18	smd
19	smd
20	smd
21	smd
22	smd
23	smd
24	smd
25	smd
26	smd
27	smd
28	smd
29	smd
30	smd
31	smd
32	smd
33	smd
34	smd
35	smd
36	smd
37	smd
38	smd
39	smd
40	smd
41	smd
42	smd
43	smd
44	smd
45	smd
46	smd
47	smd
48	smd
49	smd
50	smd
51	smd
52	smd
53	smd
54	smd

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