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Revision 1.3
Apr., 2010
256M Double Data Rate Synchronous DRAM
A3S56D30FTP
A3S56D40FTP
CLK, /CLK
: Master Clock
CKE
: Clock Enable
/CS
: Chip Select
/RAS
: Row Address Strobe
/CAS
: Column Address Strobe
/WE
: Write Enable
A0-12
: Address Input
BA0,1
: Bank Address Input
Vdd
: Power Supply
VddQ
: Power Supply for Output
Vss
: Ground
VssQ
: Ground for Output
DQ0-15
: Data I/O (x16)
UDM, LDM
: Write Mask (x16)
Pin Assignment (Top View) 66-pin TSOP
DM
: Write Mask (x8)
DQ0-7
: Data I/O (x8)
UDQS, LDQS
: Data Strobe (x16)
DQS
: Data Strobe (x8)
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
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
Vdd
DQ0
VddQ
DQ1
DQ2
VssQ
DQ3
DQ4
VddQ
DQ5
DQ6
VssQ
DQ7
NC
VddQ
LDQS
NC
Vdd
NC
LDM
/WE
/CAS
/RAS
/CS
NC
BA0
BA1
A10/AP
A0
A1
A2
A3
Vdd
Vss
DQ15
VssQ
DQ14
DQ13
VddQ
DQ12
DQ11
VssQ
DQ10
DQ9
VddQ
DQ8
NC
VssQ
UDQS
NC
VREF
Vss
UDM
/CLK
CLK
CKE
NC
A12
A11
A9
A8
A7
A6
A5
A4
Vss
66pin TSOP(II)
400mil width
x
875mil length
0.65mm
Lead Pitch
Row
A0-12
Column
A0-9 (x8)
A0-8 (x16)
Vdd
DQ0
VddQ
NC
DQ1
VssQ
NC
DQ2
VddQ
NC
DQ3
VssQ
NC
NC
VddQ
NC
NC
Vdd
NC
NC
/WE
/CAS
/RAS
/CS
NC
BA0
BA1
A10/AP
A0
A1
A2
A3
Vdd
Vss
DQ7
VssQ
NC
DQ6
VddQ
NC
DQ5
VssQ
NC
DQ4
VddQ
NC
NC
VssQ
DQS
NC
VREF
Vss
DM
/CLK
CLK
CKE
NC
A12
A11
A9
A8
A7
A6
A5
A4
Vss
x8
x16
VREF
: SSTL_2 reference voltage
Harman Kardon
AVR 365/230V Service Manual
Page 110 of 176
Summary of Contents for AVR 230
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