datasheetbank_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

DS28EL22Q-U View Datasheet(PDF) - Maxim Integrated

Part Name
Description
View to exact match
DS28EL22Q-U Datasheet PDF : 5 Pages
1 2 3 4 5
ABRIDGED DATA SHEET
DS28EL22
DeepCover Secure Authenticator with
1-Wire SHA-256 and 2Kb User EEPROM
ABSOLUTE MAXIMUM RATINGS
IO Voltage Range to GND....................................... -0.5V to 4.0V
IO Sink Current....................................................................20mA
Operating Temperature Range........................... -40NC to +85NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................. -55NC to +125NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(TA = -40NC to +85NC, unless otherwise noted.) (Note 1)
PARAMETER
IO PIN: GENERAL DATA
SYMBOL
CONDITIONS
1-Wire Pullup Voltage
VPUP (Note 2)
1-Wire Pullup Resistance
RPUP VPUP = 1.8V Q 5% (Note 3)
Input Capacitance
CIO
(Notes 4, 5)
Input Load Current
IL
IO pin at VPUP
High-to-Low Switching Threshold
VTL
(Notes 6, 7)
Input Low Voltage
VIL
(Notes 2, 8)
Low-to-High Switching Threshold
VTH
(Notes 6, 9)
Switching Hysteresis
VHY
(Notes 6, 10)
Output Low Voltage
VOL
IOL = 4mA (Note 11)
Recovery Time
tREC RPUP = 750I (Notes 2, 12)
Time-Slot Duration
tSLOT (Notes 2, 13)
IO PIN: 1-Wire RESET, PRESENCE-DETECT CYCLE
Reset Low Time
Reset High Time
Presence-Detect Sample Time
IO PIN: 1-Wire WRITE
tRSTL
tRSTH
tMSP
(Note 2)
(Note 14)
(Notes 2, 15)
Write-Zero Low Time
Write-One Low Time
IO PIN: 1-Wire READ
tW0L
tW1L
(Notes 2, 16)
(Notes 2, 16)
Read Low Time
Read Sample Time
EEPROM
tRL
tMSR
(Notes 2, 17)
(Notes 2, 17)
Programming Current
Programming Time for a 32-Bit
Segment or Page Protection
IPROG
tPRD
VPUP = 1.89V (Notes 5, 18)
Refer to the full data sheet.
Programming Time for the Secret
Write/Erase Cycling Endurance
Data Retention
tPRS
NCY TA = +85NC (Notes 21, 22)
tDR
TA = +85NC (Notes 23, 24, 25)
Maxim Integrated
MIN TYP MAX UNITS
1.71
1.89
V
300
750
I
1500
pF
5
19.5
FA
0.65 x VPUP
V
0.3
V
0.75 x VPUP
V
0.3
V
0.4
V
5
Fs
13
Fs
48
80
Fs
48
Fs
8
10
Fs
8
16
Fs
1
2
Fs
1
tRL + d
100k
10
2-d
Fs
2
Fs
1
mA
ms
ms
Years
  2
 

Share Link: 

datasheetbank.com [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]