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24LC21A_03 Datasheet, PDF (2/18 Pages) Microchip Technology – 1K 2.5V Dual Mode I 2 C Serial EEPROM
24LC21A
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings(†)
VCC.............................................................................................................................................................................7.0V
All inputs and outputs w.r.t. VSS.........................................................................................................................................-0.6V to VCC +1.0V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied ................................................................................................-65°C to +125°C
ESD protection on all pins ......................................................................................................................................................≥ 4 kV
† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent 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 1-1: DC CHARACTERISTICS
DC CHARACTERISTICS
VCC = +2.5V to 5.5V
Commercial (C): TA = 0°C to +70°C
Industrial (I): TA =-40°C to +85°C
Parameter
Symbol Min
Max Units
SCL and SDA pins:
High-level input voltage
Low-level input voltage
VIH
0.7 VCC
—
V
VIL
—
0.3 VCC
V
Input levels on VCLK pin:
High-level input voltage
Low-level input voltage
VIH
2.0
—
V
VIL
—
0.2 VCC
V
Hysteresis of Schmitt Trigger inputs VHYS
.05 VCC
—
V
Low-level output voltage
VOL1
—
0.4
V
Low-level output voltage
VOL2
—
0.6
V
Input leakage current
ILI
—
±1
µA
Output leakage current
ILO
—
±1
µA
Pin capacitance (all inputs/outputs) CIN, COUT —
10
pF
Operating current
Standby current
ICC Write
—
ICC Read
—
ICCS
—
—
3
mA
1
mA
30
µA
100
µA
Note: This parameter is periodically sampled and not 100% tested.
Conditions
VCC ≥ 2.7V (Note)
VCC < 2.7V (Note)
(Note)
IOL = 3 mA, VCC = 2.5V (Note)
IOL = 6 mA, VCC = 2.5V
VIN = 0.1V to VCC
VOUT = 0.1V to VCC
VCC = 5.0V (Note)
TA = 25°C, FCLK = 1 MHz
VCC = 5.5V
VCC = 5.5V, SCL = 400 kHz
VCC = 3.0V, SDA = SCL = VCC
VCC = 5.5V, SDA = SCL = VCC
VCLK = VSS
DS21160F-page 2
 2003 Microchip Technology Inc.