參數(shù)資料
型號(hào): DS1602
元件分類: 通用總線功能
英文描述: Elapsed Time Counter
中文描述: 歷時(shí)計(jì)數(shù)器
文件頁數(shù): 8/10頁
文件大?。?/td> 123K
代理商: DS1602
DS1602
8 of 10
AC ELECTRICAL CHARACTERISTICS
PARAMETER
Data to CLK Setup
CLK to Data Hold
CLK to Data Delay
CLK Low Time
CLK High Time
CLK Frequency
CLK Rise & Fall
RST
to CLK Setup
CLK to
RST
Hold
RST
Inactive Time
RST
Low to I/O High Z
CLK High to I/O High Z
(V
CC
= +5V ±10%; -40°C to 85°C)
MAX
UNITS
ns
ns
200
ns
ns
ns
2.0
MHz
500
ns
ns
ns
μs
70
ns
20
ns
SYMBOL
t
DC
t
CDH
t
CDD
t
CL
t
CH
f
CLK
t
F,
t
R
t
CC
t
CCH
t
CWH
t
RDZ
t
CDZ
MIN
50
60
TYP
NOTES
7
7
7, 8, 9
7
7
7
250
250
DC
100
60
1
7
7
7
7
7
NOTES:
1.
All voltages are reference to ground.
2.
Logic 1 voltages are specified at a source current of 1 mA.
3.
Logic 0 voltages are specified at a sink current of 4 mA.
4.
I
CC
is specified with the DQ pin open.
5.
I
CC1
is specified with V
CC
at 5.0V and
RST
= GND.
6.
I
BAT
is specified with V
CC
< V
BAT
and V
BAT
within DC recommended operating conditions.
7.
Measured at V
IH
= 2.0V or V
IL
= 0.8V.
8.
Measured at V
OH
= 2.4V or V
OL
= 0.4V.
9.
Load capacitance = 50 pF.
10.
Specified as the load capacitance for which the crystal frequency is guaranteed (see crystal
manufacturer’s data sheet).
11.
Leakage current is the amount of current consumed from the battery when V
CC
is not present and the
oscillator is turned off.
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