DS2465 MAXIM [Maxim Integrated Products], DS2465 Datasheet - Page 2

• Manufacturer Part Number: DS2465
• Description: SHA-256 Coprocessor with 1-Wire Master Function
• Manufacturer: MAXIM [Maxim Integrated Products]

ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to GND ........-0.5V to +4.0V
Maximum Current into Any Pin ...........................................20mA
Operating Temperature Range ......................... -40NC to +85NC
Junction Temperature .....................................................+150NC
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
(T
Supply Voltage
Supply Current
Power-On Reset Trip Point
1-Wire Input High
1-Wire Input Low
1-Wire Weak Pullup Resistor
(Notes 3, 4)
1-Wire Output Low
Active Pullup On Threshold
Active Pullup On Time
(Notes 3, 5)
Active Pullup Impedance
1-Wire Output Fall Time (Note 3)
IO PIN: 1-Wire TIMING (Note 6)
Reset Low Time
Reset High Time
Presence-Detect Sample Time
Sampling for Short and Interrupt
Write-1/Read Low Time
SHA-256 Coprocessor with 1-Wire Master Function
A
= -40NC to +85NC, unless otherwise noted.) (Note 1)
PARAMETER
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SYMBOL
R
V
V
R
t
t
V
t
t
t
V
V
RSTH
V
RSTL
I
APU
MSP
W1L
IAPO
POR
WPU
OL1
APU
t
CC
CC
IH1
t
IL1
SI
F
(Note 2)
Sleep mode (SLPZ pin low), V
(Note 3)
Low range
High range
V
(Note 3)
1-Wire time slot
1-Wire reset standard speed
1-Wire reset overdrive speed
V
Standard
Overdrive
Standard
Overdrive
Standard and overdrive
Standard
Overdrive
Standard
Overdrive
Standard
Overdrive
CC
CC
= 2.97V, 8mA sink current
= 2.97V, 4mA load (Note 3)
CONDITIONS
Storage Temperature Range ............................ -55NC to +125NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) .....................................+260NC
CC
= 3.63V
2.375
0.475
0.6 O
2.97
0.25
0.05
MIN
V
375
750
-5%
-5%
-5%
7.6
1.9
7.6
CC
Equal to t
Equal to t
Table 6
Table 6
Table 6
1000
TYP
0.95
500
See
See
See
3.3
0.5
1.0
2.5
0.5
8
2
8
REC0
RSTL
DS2465
2.625
0.525
MAX
0.2 O
1350
+9%
+9%
+9%
3.63
0.25
8.72
2.18
8.72
V
750
750
1.0
1.4
1.2
0.2
60
CC
1
UNITS
FA
Fs
Fs
Fs
Fs
Fs
Fs
Fs
I
I
V
V
V
V
V