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參數(shù)資料
| 型號(hào)： | HYB514400BTL-80 |
| 廠商： | SIEMENS A G |
| 元件分類： | DRAM |
| 英文描述： | 1M x 4-Bit Dynamic RAM Low Power 1M x 4-Bit Dynamic RAM |
| 中文描述： | 1M X 4 FAST PAGE DRAM, 80 ns, PDSO20 |
| 文件頁數(shù)： | 23/24頁 |
| 文件大小： | 124K |
| 代理商： | HYB514400BTL-80 |
HYB 514400BJ-50/-60
1M
×
4 DRAM
Semiconductor Group
23
1998-10-01
Test Mode
As the HYB 514400BJ is organized internally as 512k
×
8-bits, a test mode cycle using 8:1
compression can be used to improve test time. Note that in the 1M
×
4 version the test time is
reduced by 1/2 for a linear test pattern.
In a test mode “write” the data from each I/O1 pin is written into eight bits simultaneously (all “1” or
all “0”).The I/O2 - I/O4 inputs are not used for writing in test mode. In test mode “read” each I/O
output is used for indicating the test mode result. If the internal eight bits are equal, the I/O would
indicate a “1”. If they were not equal, the I/O would indicate a “0”. Note that in test mode read“
I/O1-I/O3 are always driven to “ones”, i.e. all outputs will be “1” for a test mode “pass”. 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.
Addresses A10R, A10C and A0C are don‘t care during test mode.
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PDF描述 |
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| HYB514400BJL-50 | 1M x 4-BIT DYNAMIC RAM LOW POWER 1M x 4-BIT DYNAMIC RAM |
| HYB514400BJL-60 | 1M x 4-Bit Dynamic RAM Low Power 1M x 4-Bit Dynamic RAM |
| HYB514400BJL-70 | 1M x 4-Bit Dynamic RAM Low Power 1M x 4-Bit Dynamic RAM |
| HYB18L128160BF-75 | ECONOLINE: RKZ - Safety standards and approvals: EN 60950 certified, rated for 250VAC (LVD test report)- Custom Solutions Available- 3kVDC & 4kVDC Isolation- UL94V-0 Package Material- Power Sharing on Output- Efficiency to 84% |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HYB514400J-10 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 Fast Page Mode DRAM |
| HYB514400J-80 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 Fast Page Mode DRAM |
| HYB514405BJ | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 4-Bit Dynamic RAM |
| HYB514405BJ-50 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 4-Bit Dynamic RAM |
| HYB514405BJ-60 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 4-Bit Dynamic RAM |
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