參數(shù)資料
型號(hào)： HYB5116400BT-60
廠商： SIEMENS A G
元件分類(lèi)： DRAM
英文描述： 4M x 4-Bit Dynamic RAM
中文描述： 4M X 4 FAST PAGE DRAM, 60 ns, PDSO24
封裝： 0.300 INCH, PLASTIC, TSOP2-24
文件頁(yè)數(shù)： 25/26頁(yè)
文件大?。?/td> 325K
代理商： HYB5116400BT-60
Semiconductor Group
25
HYB 5116400BJ/BT-50/-60/-70
4M x 4-DRAM
Test Mode
As the HYB 5116400BJ/BT is organized internally as 1M x 16-bits, a test mode cycle using 4:1
compression can be used to improve test time. Note that in the 4M x 4 version the test time is
reduced by 1/4 for a N test pattern.
In a test mode “write” the data from each I/O pin is written into four 1M blocks simultaneously (all
“1” s or all “0” s). In test mode “read” each I/O output is used for indicating the test mode result. If
the internal four bits are equal, the I/O would indicate a “1”. If they were not equal, the I/O would
indicate a “0”. The WCBR cycle (WE, CAS before RAS) puts the device into test mode. To exit
from test mode, a “CAS before RAS refresh”, “RAS only refresh” or “Hidden refresh” can be
used.Refresh during test mode operation can be performed by normal read cycles or by WCBR
refresh cycles.
Row addresses A0 through A9 have to kept high to perform a testmode entry cycle. All other
addresses are don’t care.
Block Diagram in Test Mode
Normal
Test
Vcc
Vss
I/O 3
Normal
Test
Vcc
Vss
I/O 2
Normal
Test
Vcc
Vss
I/O 1
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
1 M Block
I/O 4
I/O 3
I/O 2
I/O 1
Normal
Test
Normal
Normal
Normal
Test
Test
Test
A0C,A1C
A0C,A1C
A0C,A1C
A0C,A1C
A0C,A1C
A0C,A1C
A0C,A1C
A0C,A1C
Normal
Test
Vcc
Vss
I/O 4
相關(guān)PDF資料
PDF描述
HYB5116400BT-70 4M x 4-Bit Dynamic RAM
HYB5116405BT-50 4M x 4-Bit Dynamic RAM 2k & 4k Refresh
HYB5117405BT-50 4M x 4-Bit Dynamic RAM 2k & 4k Refresh
HYB5116405BT-70 4M x 4-Bit Dynamic RAM 2k & 4k Refresh
HYB5116405BJBT-50- 4M x 4-Bit Dynamic RAM 2k & 4k Refresh
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HYB5116400BT-70 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:4M x 4-Bit Dynamic RAM
HYB5116405BJ-50 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:4M x 4-Bit Dynamic RAM 2k & 4k Refresh
HYB5116405BJ-50- 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:4M x 4-Bit Dynamic RAM 2k & 4k Refresh
HYB5116405BJ-60 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:4M x 4-Bit Dynamic RAM 2k & 4k Refresh
HYB5116405BJ-70 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:4M x 4-Bit Dynamic RAM 2k & 4k Refresh
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