24LC01B/02B Modules
DS21222A-page 2
1997 Microchip Technology Inc.
1.0
ELECTRICAL CHARACTERISTICS
1.1
Maximum Ratings*
V
All inputs and outputs w.r.t. V
Storage temperature .....................................-65C to +150C
Ambient temp. with power applied.................-65C to +125C
ESD protection on all pads.............................................
CC
...................................................................................7.0V
SS
................-0.6V to V
CC
+1.0V
≥
4 kV
*Notice:
may cause permanent damage to the device. This is a stress rat-
ing only and functional operation of the device at those or any
other conditions above those indicated in the operational listings
of this specification is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.
Stresses above those listed under “Maximum ratings”
TABLE 1-1:
PAD FUNCTION TABLE
1.2
Pad Descriptions
1.2.1
SDA (Serial Data)
This is a bi-directional pad used to transfer addresses
and data into and data out of the device. It is an open
drain terminal, therefore the SDA bus requires a pull-up
resistor to V
CC
(typical 10 K
400 kHz).
For normal data transfer SDA is allowed to change only
during SCL low. Changes during SCL high are reserved
for indicating the START and STOP conditions.
for 100 kHz, 2 K
for
1.2.2
SCL (Serial Clock)
This input is used to synchronize the data transfer from
and to the device.
Name
Function
V
SDA
SCL
V
CC
SS
Ground
Serial Address/Data I/O
Serial Clock
+2.5V to 5.5V Power Supply
TABLE 1-1
DC CHARACTERISTICS
All Parameters apply across the recom-
mended operating ranges unless other-
wise noted.
Commercial (C):
Tamb = 0C to +70C, V
CC
= 2.5V to 5.5V
Parameter
Symbol
Min.
Max.
Units
Conditions
SCL and SDA pins:
High level input voltage
Low level input voltage
Hysteresis of Schmitt trigger inputs
Low level output voltage
V
V
IH
0.7 V
CC
V
V
V
V
(Note)
(Note)
Vcc
I
OL
= 3.0 mA, V
I
OL
= 2.1 mA, V
V
IN
= V
CC
V
OUT
= V
V
CC
= 5.0V (Note)
Tamb = 25C, f = 1 MHz
V
CC
= 5.5V, SCL = 400 kHz
V
CC
= 5.5V, SCL = 400 kHz
V
CC
= 5.5V, SDA = SCL = V
IL
0.3 V
CC
V
V
HYS
0.05 V
CC
—
0.40
≥
2.5V (Note)
OL
CC
CC
= 4.5V
= 2.5V
Input leakage current
Output leakage current
Pin capacitance (all inputs/outputs)
I
LI
-10
-10
—
10
10
10
μ
μ
pF
A
A
or V
or V
SS
I
LO
C
IN
C
OUT
Write
Read
I
CCS
CC
SS
,
Operating current
I
I
CC
—
—
—
3
1
mA
mA
μ
A
CC
Standby current
Note:
100
CC
This parameter is periodically sampled and not 100% tested.