參數(shù)資料
型號(hào)： DS1977
英文描述： 32KB EEPROM iButton
中文描述： 密碼保護(hù)的32K字節(jié)EEPROM iButton
文件頁(yè)數(shù)： 15/16頁(yè)
文件大?。?/td> 102K
代理商： DS1977
Page 15
1/31/03
ABSOLUTE MAXIMUM RATINGS
IO Voltage to GND
Operating Temperature Range
Storage Temperature Range
-0.3V, +5.5V
-40
°
C to +85
°
C
-55
°
C to +125
°
C
ELECTRICAL CHARACTERISTICS
(V
PUP
= 2.8V to 5.25V, V
CC
≤
V
PUP
, parasitic supply capacitor see note 15, T
A
= -40
°
C to +85
°
C)
PARAMETER
SYMBOL
CONDITIONS
Standby Supply Current
I
CC
V
PUP
= V
CC
= 5.0V, IO at 0V
Ground Current
(system requirement)
IO pin general data
1-Wire Pull-up
Resistance (Note 2)
(system requirement)
Input Load Current
I
L
IO pin at V
PUP
High-to-Low Switching
Threshold (Notes 3, 4)
Input Low Voltage (Note
5) (system requirement)
Low-to-High Switching
Threshold (Notes 3, 6)
Switching Hysteresis
(Note 7)
Output low voltage at
4mA (Note 8)
Recovery Time
t
REC
Standard Speed, R
PUP
=2.2k
(system requirement)
Overdrive Speed, R
PUP
=2.2k
Overdrive Speed, immediately
prior to reset pulse;
R
PUP
=2.2k
Rising-Edge Hold-off
Time (Note 9)
Overdrive Speed
Timeslot Duration
t
SLOT
Standard Speed
(system requirement)
Overdrive Speed
IO pin, 1-Wire Reset, Presence detect cycle
Reset Low Time
t
RSTL
Standard Speed
(system requirement)
Overdrive Speed
Presence Detect High
Time
Overdrive Speed
Presence Detect Fall
t
FPD
Standard Speed, V
PUP
> 4.5V.
Time (Note 10)
Standard Speed
Overdrive Speed
Presence Detect Low
Time
Overdrive Speed
Presence Detect Sample
Time
(system requirement)
Standard Speed
Overdrive Speed
IO pin, 1-Wire Write
Write-0 Low Time
t
W0L
Standard Speed
(system requirement)
Overdrive Speed
MIN
TYP
0.05
MAX
5
20
UNITS
μA
mA
I
GND
R
PUP
2.2
k
1
10
3.2
μA
V
V
TL
0.5
V
IL
0.30
V
V
TH
0.7
3.4
V
V
HY
0.15
N/A
V
V
OL
0.4
V
5
2
5
μs
μs
μs
t
REH
Standard Speed
0.5
5.0
μs
0.5
65
8
2.0
μs
μs
μs
480
48
15
640
80
60
μs
μs
μs
t
PDH
Standard Speed
2
6
5
8
1
μs
μs
μs
μs
μs
1.5
1.5
0.15
60
t
PDL
Standard Speed
240
8
24
75
μs
μs
t
MSP
Standard Speed, V
PUP
> 4.5V.
65
68
9
75
10
μs
μs
60
6
120
16
μs
μs
相關(guān)PDF資料
PDF描述
DS1977-F5 32KB EEPROM iButton
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1977-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
DS1977-F5- 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Password-Protected 32KB EEPROM iButton
DS1977-F5# 功能描述:iButton Password-Protected 32KB EEPROM 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
DS1977-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
DS1981U-F3-1125+ 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
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