AT24C21
DC Characteristics
Applicable over recommended operating range from: T
AI
= -40°C to +85°C, T
AC
= 0°C to +70°C, V
CC
= +2.5V to +5.5V
(unless otherwise noted).
Symbol
V
CC
I
CC
I
CC
I
SB
I
LI
I
LO
V
IL
Parameter
Supply Voltage
Supply Current V
CC
= 5.0V
Supply Current V
CC
= 5.0V
Standby Current .......V
CC
= 2.5V
.......V
CC
= 5.0V
Input Leakage Current
Output Leakage Current
Input Low Level
(1)
SCL, SDA Pin
Input Low Level VCLK Pin
Input High Level
(1)
SCL, SDA Pin
Input High Level VCLK Pin
Output Low Level V
CC
= 3.0V
I
OL
= 2.1 mA
READ at 100 KHz
WRITE at 100 KHz
V
IN
= V
CC
or V
SS
V
IN
= V
CC
or V
SS
V
IN
= V
CC
or V
SS
V
OUT
= V
CC
or V
SS
-0.6
V
CC
≥
2.7V
V
CC
< 2.7V
V
CC
×
0.7
2.0
Test Condition
Min
2.5
0.4
2.0
3.0
12.0
0.10
0.05
Typ
Max
5.5
1.0
3.0
4.0
30.0
1.0
1.0
V
CC
×
0.3
0.8
0.2
×
V
CC
V
CC
+ 0.5
0.40
Units
V
mA
mA
µA
µA
µA
µA
V
V
V
V
V
V
V
IH
V
OL
Note:
1. V
IL
min and V
IH
max are for reference only and not tested.
Pin Capacitance
(1)
Applicable over recommended operating range from T
A
= 25°C, f = 1.0 MHz, V
CC
= +1.8V.
Symbol
C
I/O
C
IN
Note:
Test Condition
Input/Output Capacitance (SDA)
Input Capacitance (A
0
, A
1
, A
2
, SCL, VCLK)
1. This parameter is characterized and is not 100% tested.
Max
8
6
Units
pF
pF
Conditions
V
I/O
= 0V
V
IN
= 0V
Transmit-Only Mode
Symbol
Parameter
Min
T
VAA
T
VHIGH
T
VLOW
T
VHZ
T
VPU
Output valid from VCLK
VCLK high-time
VCLK low-time
Mode transition time
Transmit-Only power-up time
0
4.0
4.7
500
2.5-volt
Max
500
ns
µs
µs
ns
ns
Units
3
ATMEL [ ATMEL CORPORATION ]
