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參數(shù)資料
| 型號(hào)： | K4S641632F-TL75 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 64Mbit SDRAM 1M x 16Bit x 4 Banks Synchronous DRAM LVTTL |
| 中文描述： | 64Mbit SDRAM的100萬(wàn)× 16 × 4銀行同步DRAM LVTTL |
| 文件頁(yè)數(shù)： | 4/11頁(yè) |
| 文件大?。?/td> | 133K |
| 代理商： | K4S641632F-TL75 |
K4S641632F
CMOS SDRAM
Rev.0.1 Sept. 2001
V
DD
DQ0
V
DDQ
DQ1
DQ2
V
SSQ
DQ3
DQ4
V
DDQ
DQ5
DQ6
V
SSQ
DQ7
V
DD
LDQM
WE
CAS
RAS
CS
BA0
BA1
A10/AP
A0
A1
A2
A3
V
DD
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
PIN CONFIGURATION
(Top view)
V
SS
DQ15
V
SSQ
DQ14
DQ13
V
DDQ
DQ12
DQ11
V
SSQ
DQ10
DQ9
V
DDQ
DQ8
V
SS
N.C/RFU
UDQM
CLK
CKE
N.C
A11
A9
A8
A7
A6
A5
A4
V
SS
54Pin TSOP (II)
(400mil x 875mil)
(0.8 mm Pin pitch)
PIN FUNCTION DESCRIPTION
Pin
Name
Input Function
CLK
System clock
Active on the positive going edge to sample all inputs.
CS
Chip select
Disables or enables device operation by masking or enabling all inputs except
CLK, CKE and L(U)DQM
CKE
Clock enable
Masks system clock to freeze operation from the next clock cycle.
CKE should be enabled at least one cycle prior to new command.
Disable input buffers for power down in standby.
A
0
~ A
11
Address
Row/column addresses are multiplexed on the same pins.
Row address : RA
0
~ RA
11
, Column address : CA
0
~ CA
7
BA
0
~ BA
1
Bank select address
Selects bank to be activated during row address latch time.
Selects bank for read/write during column address latch time.
RAS
Row address strobe
Latches row addresses on the positive going edge of the CLK with RAS low.
Enables row access & precharge.
CAS
Column address strobe
Latches column addresses on the positive going edge of the CLK with CAS low.
Enables column access.
WE
Write enable
Enables write operation and row precharge.
Latches data in starting from CAS, WE active.
L(U)DQM
Data input/output mask
Makes data output Hi-Z, t
SHZ
after the clock and masks the output.
Blocks data input when L(U)DQM active.
DQ
0
~
15
Data input/output
Data inputs/outputs are multiplexed on the same pins.
V
DD
/V
SS
Power supply/ground
Power and ground for the input buffers and the core logic.
V
DDQ
/V
SSQ
Data output power/ground
Isolated power supply and ground for the output buffers to provide improved noise
immunity.
N.C/RFU
No connection
/reserved for future use
This pin is recommended to be left No Connection on the device.
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| K4S641632H-TC60 | 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:64Mb H-die SDRAM Specification 54 TSOP-II with Pb-Free |
| K4S641632H-TC70 | 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:64Mb H-die SDRAM Specification 54 TSOP-II with Pb-Free |
| K4S641632H-TC75 | 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:64Mb H-die SDRAM Specification 54 TSOP-II with Pb-Free |
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