參數(shù)資料
型號(hào): HYB39S512400ATL
廠商: INFINEON TECHNOLOGIES AG
英文描述: 512-Mbit Synchronous DRAM
中文描述: 512兆位同步DRAM
文件頁(yè)數(shù): 11/28頁(yè)
文件大?。?/td> 718K
代理商: HYB39S512400ATL
32M x 16
HYB 39S512[40/80/16]0AT(L)
512-Mbit Synchronous DRAM
Pin Configuration
Data Sheet
11
Rev. 1.3, 2004-03
10082003-L1GD-PVI5
2.2
Package P-TSOPII-54
Figure 1
PinoutP-TSOPII-54
DQM
LDQM
UDQM
Input
Pulse
Active
High
Data Mask
The Data Input/Output mask places the DQ buffers in a high impedance
state when sampled high. In Read mode, DQM has a latency of two clock
cycles and controls the output buffers like an output enable. In Write mode,
DQM has a latency of zero and operates as a word mask by allowing input
data to be written if it is low but blocks the write operation if DQM is high.
One DQM input is present in x4 and x8 SDRAMs, LDQM and UDQM
controls the lower and upper bytes in x16 SDRAMs.
Power and Ground
Power and ground for the input buffers and the core logic (3.3 V)
Power and Ground for DQs
Isolated power supply and ground for the output buffers to provide
improved noise immunity.
Not Connected
No internal electrical connection is present.
V
DD
V
SS
Supply –
V
DDQ
V
SSQ
Supply –
NC
Table 3
Pin
Signal Pin Description
Type
Signal Polarity Function
VDD
NC
VDDQ
NC
DQ0
VSSQ
NC
NC
VDDQ
NC
DQ1
VSSQ
NC
VDD
NC
WE
CAS
RAS
CS
BA0
BA1
A10/AP
A0
A1
A2
A3
VDD
VSS
NC
VSSQ
NC
DQ3
VDDQ
NC
NC
VSSQ
NC
DQ2
VDDQ
NC
VSS
NC
DQM
CLK
CKE
A12
A11
A9
A8
A7
A6
A5
A4
VSS
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
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
VDD
DQ0
VDDQ
NC
DQ1
VSSQ
NC
DQ2
VDDQ
NC
DQ3
VSSQ
NC
VDD
NC
WE
CAS
RAS
CS
BA0
BA1
A10/AP
A0
A1
A2
A3
VDD
VSS
DQ7
VSSQ
NC
DQ6
VDDQ
NC
DQ5
VSSQ
NC
DQ4
VDDQ
NC
VSS
NC
DQM
CLK
CKE
A12
A11
A9
A8
A7
A6
A5
A4
VSS
VSS
DQ15
VSSQ
DQ14
DQ13
VDDQ
DQ12
DQ11
VSSQ
DQ10
DQ9
VDDQ
DQ8
VSS
NC
UDQM
CLK
CKE
A12
A11
A9
A8
A7
A6
A5
A4
VSS
VDD
DQ0
VDDQ
DQ1
DQ2
VSSQ
DQ3
DQ4
VDDQ
DQ5
DQ6
VSSQ
DQ7
VDD
LDQM
WE
CAS
RAS
CS
BA0
BA1
A10/AP
A0
A1
A2
A3
VDD
128M x 4
64M x 8
TSOPII-54 (400 mil x 875 mil, 0.8 mm pitch)
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