HM5225165B/HM5225805B/HM5225405B-75/A6/B6
Pin Arrangement (HM5225165B)
54-pin TSOP
1
VCC
54 VSS
2
DQ0
53 DQ15
3
4
5
V
CCQ
DQ1
DQ2
52
VSSQ
51 DQ14
50 DQ13
6
7
8
VSS
Q
DQ3
DQ4
49 VCC
Q
48 DQ12
47 DQ11
9
VCC
Q
DQ5
DQ6
46 VSS
Q
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
45 DQ10
44 DQ9
VSS
Q
DQ7
VCC
DQML
WE
43 VCC
Q
42 DQ8
41 VSS
40 NC
39 DQMU
38 CLK
37 CKE
36 A12
35 A11
34 A9
CAS
RAS
CS
BA0
BA1
A10
A0
A1
A2
A3
VCC
33 A8
32 A7
31 A6
30 A5
29 A4
28 VSS
(Top view)
Pin Description
Pin name
Function
Pin name
Function
A0 to A12,
BA0, BA1
Address input
WE
Write enable
Row address
A0 to A12
A0 to A8
DQMU/DQML Input/output mask
Column address
CLK
Clock input
Bank select address BA0/BA1 (BS) CKE
Clock enable
DQ0 to DQ15 Data-input/output
VCC
Power for internal circuit
Ground for internal circuit
Power for DQ circuit
Ground for DQ circuit
No connection
CS
Chip select
VSS
RAS
CAS
Row address strobe command
Column address strobe command
VCCQ
VSSQ
NC
Data Sheet E0082H10
3