Rainbow Electronics DS2431 - Manual (Page 2)

DS2431: 1024-Bit, 1-Wire EEPROM
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ABSOLUTE MAXIMUM RATINGS
I/O Voltage to GND -0.5V, +6V
I/O Sink Current 20mA
Operating Temperature Range -40°C to +85°C
Junction Temperature +150°C
Storage Temperature Range -40°C to +85°C
Soldering Temperature See IPC/JEDEC J-STD-020A
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is
not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
PUP
= 2.8V to 5.25V, T
A
= -40°C to +85°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
I/O PIN GENERAL DATA
1-Wire Pullup Resistance
R
PUP
(Notes 1, 2) 0.3 2.2 k
Ω
Input Capacitance C
IO
(Notes 3, 4) 100 800 pF
Input Load Current I
L
I/O pin at V
PUP
0.05 2.2 µA
High-to-Low Switching
Threshold
V
TL
(Notes 4, 5, 6) 0.5 4.1 V
Input Low Voltage V
IL
(Notes 1, 7) 0.3 V
Low-to-High Switching
Threshold
V
TH
(Notes 4, 5, 8) 1.0 4.9 V
Switching Hysteresis V
HY
(Notes 4, 5, 9) 0.22 1.70 V
Output Low Voltage V
OL
At 4mA (Note 10) 0.4 V
Standard speed, R
PUP
= 2.2k
Ω
5
Overdrive speed, R
PUP
= 2.2k
Ω
2 Recovery Time
(Notes 1,11)
t
REC
Overdrive speed, directly prior to reset
pulse; R
PUP
= 2.2k
Ω
5
µs
Standard speed (Note 12) 0.5 5.0
Rising-Edge Hold-off Time t
REH Overdrive speed Not applicable (0)
µs
Standard speed 65
Timeslot Duration (Note 1) t
SLOT
Overdrive speed (Note 13) 9
µs
I/O PIN, 1-WIRE RESET, PRESENCE DETECT CYCLE
Standard speed, V
PUP
> 4.5V 480 640
Standard speed (Note 12) 504 640
Overdrive speed, V
PUP
> 4.5V 48 80
Reset Low Time (Note 1) t
RSTL
Overdrive speed (Note 13) 53 80
µs
Standard speed, V
PUP
> 4.5V 15 60
Standard speed (Note 13) 15 63
Presence Detect High
Time
t
PDH
Overdrive speed (Note 13) 2 7
µs
Standard speed, V
PUP
> 4.5V 1.1 3.75
Standard speed 1.1 7
Presence Detect Fall Time
(Notes 4, 14)
t
FPD
Overdrive speed 1.1
µs
Standard speed 60 240
Overdrive speed, V
PUP
> 4.5V 8 24
Presence Detect Low
Time
t
PDL
Overdrive speed (Note 13) 8 26
µs
Standard speed, V
PUP
> 4.5V 64 75
Standard speed 70 75
Presence Detect Sample
Time (Note 1)
t
MSP
Overdrive speed 8.1 10
µs