24LC21A
1.0
1.1
ELECTRICAL
CHARACTERISTICS
Maximum Ratings*
TABLE 1-1:
Name
V
SS
SDA
SCL
VCLK
V
CC
NC
PIN FUNCTION TABLE
Function
Ground
Serial Address/Data I/O
Serial Clock (Bi-directional Mode)
Serial Clock (Transmit-Only Mode)
+2.5V to 5.5V Power Supply
No Connection
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
Soldering temperature of leads (10 seconds) .. +300
°
C
ESD protection on all pins
..................................... ≥
4 kV
*
Notice:
Stresses above those listed under “Maximum ratings” may cause perma-
nent damage to the device. This is a stress rating 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.
TABLE 1-2:
DC CHARACTERISTICS
V
CC
= +2.5V to 5.5V
Commercial (C): Tamb = 0
°
C to +70
°
C
Industrial (I):
Tamb =-40
°
C to +85
°
C
Parameter
SCL and SDA pins:
High level input voltage
Low level input voltage
Input levels on VCLK pin:
High level input voltage
Low level input voltage
Hysteresis of Schmitt trigger inputs
Low level output voltage
Low level output voltage
Input leakage current
Output leakage current
Pin capacitance (all inputs/outputs)
Operating current
Standby current
Note:
Symbol
V
IH
V
IL
V
IH
V
IL
V
HYS
V
OL1
V
OL2
I
LI
I
LO
Cin, Cout
I
CC
Write
I
CC
Read
I
CCS
Min
0.7 V
CC
—
2.0
—
.05 V
CC
—
—
-10
-10
—
—
—
—
—
Max
—
0.3 V
CC
—
0.2 V
CC
—
0.4
0.6
10
10
10
3
1
30
100
Units
V
V
V
V
V
V
V
µ
A
µ
A
pF
mA
mA
µ
A
µ
A
V
CC
≥
2.7V (Note)
V
CC
< 2.7V (Note)
(Note)
I
OL
= 3 mA, V
CC
= 2.5V (Note)
I
OL
= 6 mA, V
CC
= 2.5V
V
IN
= 0.1V to V
CC
V
OUT
= 0.1V to V
CC
V
CC
= 5.0V (Note)
Tamb = 25
°
C, F
CLK
= 1 MHz
V
CC
= 5.5V
V
CC
= 5.5V, SCL = 400 kHz
V
CC
= 3.0V, SDA = SCL = V
CC
V
CC
= 5.5V, SDA = SCL = V
CC
Conditions
This parameter is periodically sampled and not 100% tested.
DS21160B-page 2
Preliminary
This document was created with FrameMaker 4 0 4
©
1996 Microchip Technology Inc.
MICROCHIP [ MICROCHIP TECHNOLOGY ]
