參數(shù)資料
型號(hào): DS1315EN-33
英文描述: Phantom Time Chip
中文描述: 幻影時(shí)鐘芯片
文件頁(yè)數(shù): 18/21頁(yè)
文件大?。?/td> 523K
代理商: DS1315EN-33
DS1315
18 of 21
NOTES:
1.
All voltages are referenced to ground.
2.
Measured with load shown in Figure 15.
3.
Input pulse rise and fall times equal 10 ns.
4.
t
WR
is a function of the latter occurring edge of
WE
or
CE
in RAM mode, or
OE
or
CE
in ROM
mode.
5.
t
DH
and t
DS
are functions of the first occurring edge of
WE
or
CE
in RAM mode, or
OE
or
CE
in
ROM mode.
6.
Measured without RAM connected.
7.
I
CCO1
is the maximum average load current the DS1315 can supply to external memory.
8.
Applies to
CEO
with the ROM/
RAM
pin grounded. When the ROM/
RAM
pin is connected to V
CCO
,
CEO
will go to a low level as V
CCI
falls below V
BAT
.
9.
I
CCO2
is the maximum average load current that the DS1315 can supply to memory in the battery
backup mode.
10.
Applies to all input pins except
RST
.
RST
is pulled internally to V
CCI
.
11.
See Figures 11 and 12.
12.
See Figures 13 and 14.
13.
V
SW
is determined by the larger of V
BAT1
and V
BAT2
.
14.
V
SW
is determined by the smaller of V
BAT1
, V
BAT2
, and V
PF
.
OUTPUT LOAD
Figure 15
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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