3.
Memory Organization
Atmel AT24C256C, 256K SERIAL EEPROM:
The 256K is internally organized as 512 pages of 64-bytes each.
Random word addressing requires a 15-bit data word address.
Table 3-1.
Pin Capacitance
(1)
Applicable over recommended operating range from: TA = 25°C, f = 1.0MHz, V
CC
= +1.7V
Symbol
C
I/O
C
IN
Test Condition
Input/Output Capacitance (SDA)
Input Capacitance (A0, A1, SCL)
Max
8
6
Units
pF
pF
Conditions
V
I/O
= 0V
V
IN
= 0V
Note:
1. This parameter is characterized and is not 100% tested
Table 3-2.
DC Characteristics
Applicable over recommended operating range from: T
AI
=
−
40°C to +85°C, V
CC
= +1.7V to +5.5V
(unless otherwise noted)
Symbol
V
CC1
I
CC1
I
CC2
I
SB1
Parameter
Supply Voltage
Supply Current
Supply Current
Standby Current
(1.7V option)
Input Leakage
Currentt V
CC
= 5.0V
Output Leakage
Currentt V
CC
= 5.0V
Input Low Level
(1)
Input High Level
(1)
Output Low Level
Output Low Level
V
CC
= 3.0V
V
CC
= 1.7V
I
OL
= 2.1mA
I
OL
= 0.15mA
V
CC
= 5.0V
V
CC
= 5.0V
V
CC
= 1.7V
V
CC
= 5.0V
V
IN
= V
CC
or V
SS
V
OUT
= V
CC
or V
SS
-0.6
V
CC
x 0.7
0.10
0.05
READ at 400kHz
WRITE at 400kHz
V
IN
= V
CC
or V
SS
6.0
3.0
3.0
V
CC
x 0.3
V
CC
+ 0.5
0.4
0.2
Test Condition
Min
1.7
1.0
2.0
Typ
Max
5.5
2.0
3.0
1.0
Units
V
mA
mA
µA
µA
µA
µA
V
V
V
V
I
LI
I
LO
V
IL
V
IH
V
OL2
V
OL1
Note:
1. V
IL
min and V
IH
max are reference only and are not tested
4
Atmel AT24C256C
8568C–SEEPR–5/10
ATMEL [ ATMEL CORPORATION ]
