參數(shù)資料
型號(hào)： HYB5116160BSJ-70
廠(chǎng)商： SIEMENS A G
元件分類(lèi)： DRAM
英文描述： 1M x 16-Bit Dynamic RAM
中文描述： 1M X 16 FAST PAGE DRAM, 70 ns, PDSO42
文件頁(yè)數(shù)： 10/24頁(yè)
文件大?。?/td> 272K
代理商： HYB5116160BSJ-70
Semiconductor Group
10
HYB 5116160BSJ-50/-60/-70
1M x 16-DRAM
Notes:
1) All voltages are referenced to VSS.
2) ICC1, ICC3, ICC4 and ICC6 depend on cycle rate.
3) ICC1 and ICC4 depend on output loading. Specified values are measured with the output open.
4) Address can be changed once or less while RAS = VIL. In the case of ICC4 it can be changed once or less
during a fast page mode cycle (tPC).
5) An initial pause of 200
μ
s is required after power-up followed by 8 RAS cycles of which at least one cycle has
to be a refresh cycle, before proper device operation is achieved. In case of using internal refresh counter, a
minimum of 8 CAS-before-RAS initialization cycles instead of 8 RAS cycles are required.
6) AC measurements assume tT = 5 ns.
7) VIH (min.) and VIL (max.) are reference levels for measuring timing of input signals. Transition times are also
measured between VIH and VIL.
8) Measured with a load equivalent to 2 TTL loads and 100 pF.
9) Operation within the tRCD (max.) limit ensures that tRAC (max.) can be met. tRCD (max.) is specified as a
reference point only: If tRCD is greater than the specified tRCD (max.) limit, then access time is controlled by
tCAC.
10)Operation within the tRAD (max.) limit ensures that tRAC (max.) can be met. tRAD (max.) is specified as a
reference point only: If tRAD is greater than the specified tRAD (max.) limit, then access time is controlled by
tAA.
11)Either tRCH or tRRH must be satisfied for a read cycle.
12)tOFF (max.) and tOEZ (max.) define the time at which the outputs achieve the open-circuit condition and are
not referenced to output voltage levels.
13)Either tDZC or tDZO must be satisfied.
14)Either tCDD or tODD must be satisfied.
15)tWCS, tRWD, tCWD, tAWD and tCPWD are not restrictive operating parameters. They are included in the data
sheet as electrical characteristics only. If tWCS > tWCS (min.), the cycle is an early write cycle and the I/O pin
will remain open-circuit (high impedance) through the entire cycle; if tRWD > tRWD (min.), tCWD > tCWD
(min.), tAWD > tAWD (min.) and tCPWD > tCPWD (min.) , the cycle is a read-write cycle and I/O pins will
contain data read from the selected cells. If neither of the above sets of conditions is satisfied, the condition of
the I/O pins (at access time) is indeterminate.
16)These parameters are referenced to the CAS leading edge in early write cycles and to the WE leading edge
in read-write cycles.
17)When using Self Refresh mode, the following refresh operations must be performed to ensure proper DRAM
operation:
If row addresses are being refreshed on an evenly distributed manner over the refresh interval using CBR
refresh cycles, then only one CBR cycle must be performed immediately after exit from Self Refresh.
If row addresses are being refreshed in any other manner (ROR - Distributed/Burst; or CBR-Burst) over the
refresh interval, then a full set of row refreshes must be performed immediately before entry to and immediately
after exit from Self Refresh.
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HYB5116165BSJ-50- 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:1M x 16-Bit Dynamic RAM 1k & 4k Refresh
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