參數(shù)資料
型號(hào)： DS1994
英文描述： 4kb Plus Time Memory iButton
中文描述： 4K位、帶有時(shí)鐘的存儲(chǔ)器iButton®
文件頁數(shù)： 21/22頁
文件大?。?/td> 254K
代理商： DS1994
DS1994
PHYSICAL SPECIFICATIONS
Size
See mechanical drawing
Weight
3.3 grams (F5 package)
Humidity
90% RH at 50 C
Altitude
10,000 feet
Expected Service Life
10 years at 25 C
Safety
Meets UL#913 (4th Edit.); Intrinsically Safe Apparatus,
Approved under Entity Concept for use in Class I,
Division 1, Group A, B, C, and D Locations
21 of 22
ABSOLUTE MAXIMUM RATINGS*
Voltage on any Pin Relative to Ground
Operating Temperature
Storage Temperature
-0.5V to +7.0V
-40 C to +70 C
-40 C to +70 C
* This is a stress rating only, and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
DC ELECTRICAL CHARACTERISTICS
(V
PUP
= 2.8V to 6.0V; -40°C to +70°C)
PARAMETER
Logic 1 (Note 1)
Logic 0 (Note 1)
Output Logic Low at 4mA
(Note 1)
Output Logic High (Notes 1,
2)
Input Load Current (Note 3)
SYMBOL
V
IH
V
IL
MIN
2.2
-0.3
TYP
MAX
UNITS
V
V
+0.8
V
OL
0.4
V
V
OH
V
PUP
V
I
L
5
A
CAPACITANCE
(t
A
= 25°C)
PARAMETER
I/O (1-Wire) (Notes 6, 8)
SYMBOL
C
IN/OUT
MIN
TYP
100
MAX
800
UNITS
pF
AC ELECTRICAL CHARACTERISTICS
(V
PUP
= 2.8V to 6.0V; -40°C to +70°C)
PARAMETER
Time Slot
Write 1 Low Time
Write 0 Low Time
Read Data Valid
Release Time
Read Data Setup (Note 5)
Interrupt
Recovery Time
Reset Time High (Note 4)
SYMBOL
t
SLOT
t
LOW1
t
LOW0
t
RDV
t
RELEASE
t
SU
t
INT
t
REC
t
RSTH
MIN
60
1
60
TYP
MAX
120
15
120
UNITS
s
s
s
s
s
s
s
s
s
exactly 15
15
0
45
1
4800
960
1
480
相關(guān)PDF資料
PDF描述
DS1995 16-kbit Memory iButton
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1994-LF5 制造商: 功能描述: 制造商:undefined 功能描述:
DS1994L-F5 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1994L-F5+ 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1994L-F5-W 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1994-LFS 制造商: 功能描述: 制造商:undefined 功能描述:
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