DS1977-F5# Maxim Integrated Products, DS1977-F5# Datasheet - Page 2

• Manufacturer Part Number: DS1977-F5#
• Description: IBUTTON EEPROM 32KBit F5
• Manufacturer: Maxim Integrated Products
• Series: iButton®r

Specifications of DS1977-F5#

• Rohs Information: IButton RoHS Compliance Plan
• Memory Size: 32KB
• Memory Type: EEPROM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PHYSICAL SPECIFICATION
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.
ELECTRICAL CHARACTERISTICS
(V
Size
Weight DS1977
I/O Voltage to GND
I/O Sink Current
Junction Temperature
Storage Temperature Range
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 at
4mA
Recovery Time
Rising-Edge Hold-off
Time
Timeslot Duration
I/O Pin, 1-Wire Reset, Presence Detect Cycle
Reset Low Time
Presence Detect High
Time
Presence Detect Fall
Time
Presence Detect Low
Time
PUP
= 2.8V to 5.25V, T
PARAMETER
A
= -40°C to +85°C.)
SYMBOL
R
t
t
t
t
t
V
V
V
t
t
C
V
SLOT
RSTL
V
REC
REH
PDH
FPD
PDL
PUP
I
TH
HY
OL
TL
L
IO
IL
(Notes 1, 2)
(Note 3)
I/O pin at V
(Notes 4, 5)
(Notes 1, 6)
(Notes 4, 7)
(Note 8)
(Note 9)
Standard speed, R
(Note 1)
Overdrive speed, R
(Note 1)
Overdrive speed, directly prior
to reset pulse; R
(Note 1)
Standard speed (Note 10)
Overdrive speed (Note 10)
Standard speed (Note 1)
Overdrive speed (Note 1)
Standard speed (Note 1)
Overdrive Speed (Note 1)
Standard speed (Note 11)
Overdrive speed (Note 11)
Standard speed, V
(Note 12)
Standard speed (Note 12)
Overdrive speed (Note 12)
Standard speed
Overdrive speed
CONDITIONS
PUP
2 of 29
See mechanical drawing
Ca. 3.3g
-0.3V, +5.5V
20mA
+150°C
-40°C to +85°C
PUP
PUP
PUP
PUP
= 2.2kΩ
= 2.2kΩ
> 4.5V
= 2.2kΩ
0.15
0.15
MIN
480
0.6
0.5
0.7
0.5
0.5
2.5
1.5
1.5
65
48
15
60
1
5
2
5
8
8
TYP
MAX
0.30
N/A
640
240
2.2
3.2
3.4
0.4
6.5
10
80
60
24
5
5
2
5
8
1
UNITS
DS1977
kΩ
µA
nF
µs
µs
µs
µs
µs
µs
µs
V
V
V
V
V