DS28EC20 Maxim, DS28EC20 Datasheet - Page 2

• Manufacturer Part Number: DS28EC20
• Description: The DS28EC20 is a 20480-bit, 1-Wire® EEPROM organized as 80 memory pages of 256 bits each
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
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.
5.0V SUPPLY ELECTRICAL CHARACTERISTICS
(V
I/O Voltage to GND
I/O Sink Current
Operating Temperature Range
Junction Temperature
Storage Temperature Range
Lead Temperature (soldering, 10s)
Soldering Temperature (reflow)
I/O PIN GENERAL DATA
1-Wire Pullup Resistance
Input Capacitance
Input Load Current
High-to-Low Switching
Threshold
Input Low Voltage
Low-to-High Switching
Threshold
Switching Hysteresis
Output Low Voltage
Recovery Time
(Notes 2, 12)
Rising-Edge Hold-off Time
(Notes 5, 13)
Timeslot Duration
(Notes 2, 14)
I/O PIN, 1-Wire RESET, PRESENCE DETECT CYCLE
Reset-Low Time (Note 2)
Presence-Detect High
Time
Presence-Detect Low
Time
Presence-Detect Sample
Time (Notes 2, 15)
I/O PIN, 1-Wire WRITE
Write-0 Low Time
(Notes 2, 16, 17)
Write-1 Low Time
(Notes 2, 17)
I/O PIN, 1-Wire READ
Read-Low Time
(Notes 2, 18)
Read-Sample Time
(Notes 2, 18)
PUP
TO-92
TSOC
= 5.0V ±5%, T
PARAMETER
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
SYMBOL
R
t
t
t
t
t
t
t
V
V
V
t
t
t
C
V
SLOT
RSTL
V
MSP
t
MSR
REC
REH
PDH
PDL
W0L
W1L
PUP
I
RL
HY
TL
TH
OL
IO
L
IL
(Notes 2, 3)
(Notes 4, 5)
I/O pin at V
(Notes 5, 6, 7)
(Notes 2, 8)
(Notes 5, 6, 9)
(Notes 5, 6, 10)
At 4mA (Note 11)
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
PUP
CONDITIONS
2 of 24
t
t
RL
RL
0.05
0.30
MIN
480
0.3
1.6
2.5
0.5
DS28EC20: 20Kb 1-Wire EEPROM
65
11
48
15
60
60
60
2
8
6
1
5
5
6
1
5
1
+ 
+ 
Not applicable (0)
2000
TYP
V
V
15 - 
MAX
1.30
0.20
15.5
2 - 
640
240
120
2.2
3.5
PUP
1.8
0.5
PUP
1.1
5.0
80
60
24
75
10
15
15
-55°C to +125°C
6
2
2
-40°C to +85°C
-
-
-0.5V, +6V
UNITS
+150°C
+300C
+250C
+260C
k
µA
pF
20mA
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
V
V
V
V
V