24LC01B/02B Modules
1.0
1.1
ELECTRICAL CHARACTERISTICS
Maximum Ratings*
TABLE 1-1:
Name
V
SS
SDA
SCL
V
CC
PAD FUNCTION TABLE
Function
Ground
Serial Address/Data I/O
Serial Clock
+2.5V to 5.5V Power Supply
V
CC
...................................................................................7.0V
All inputs and outputs w.r.t. V
SS
................-0.6V to V
CC
+1.0V
Storage temperature ..................................... -65˚C to +150˚C
Ambient temp. with power applied................. -65˚C to +125˚C
ESD protection on all pads.............................................
≥
4 kV
*Notice:
Stresses above those listed under “Maximum ratings”
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.
1.2
1.2.1
Pad Descriptions
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
Ω
for 100 kHz, 2 K
Ω
for
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.
1.2.2
SCL (Serial Clock)
This input is used to synchronize the data transfer from
and to the device.
TABLE 1-1
DC CHARACTERISTICS
Tamb = 0˚C to +70˚C, V
CC
= 2.5V to 5.5V
All Parameters apply across the recom- Commercial (C):
mended operating ranges unless other-
wise noted.
Parameter
SCL and SDA pins:
High level input voltage
Low level input voltage
Hysteresis of Schmitt trigger inputs
Low level output voltage
Input leakage current
Output leakage current
Pin capacitance (all inputs/outputs)
Operating current
Standby current
Symbol
V
IH
V
IL
V
HYS
V
OL
I
LI
I
LO
C
IN
,
C
OUT
I
CC
Write
I
CC
Read
I
CCS
Min.
0.7 V
CC
Max.
Units
V
(Note)
(Note)
Conditions
0.3 V
CC
0.05 V
CC
—
0.40
-10
-10
—
—
—
—
10
10
10
3
1
100
V
V
V
µ
A
µ
A
pF
mA
mA
µ
A
Vcc
≥
2.5V (Note)
I
OL
= 3.0 mA, V
CC
= 4.5V
I
OL
= 2.1 mA, V
CC
= 2.5V
V
IN
= V
CC
or V
SS
V
OUT
= V
CC
or V
SS
V
CC
= 5.0V (Note)
Tamb = 25˚C, f = 1 MHz
V
CC
= 5.5V, SCL = 400 kHz
V
CC
= 5.5V, SCL = 400 kHz
V
CC
= 5.5V, SDA = SCL = V
CC
Note:
This parameter is periodically sampled and not 100% tested.
DS21222A-page 2
©
1997 Microchip Technology Inc.
MICROCHIP [ MICROCHIP TECHNOLOGY ]
