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AT34C02 Datasheet(PDF) 3 Page - ATMEL Corporation

Part No. AT34C02
Description  2-Wire Serial EEPROM with Permanent Software Write Protect
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT34C02
3
nected to ground (GND) or when left floating. When the
Write Protect pin is connected to V
CC, the write protection
feature is enabled for the entire array. The write protection
m odes
ar e
sho w n
in
t he
f o llow i ng
t able .
Note:
1. This parameter is characterized and is not 100% tested
Note:
1. V
IL min and VIH max are reference only and are not tested.
AT34C02 Write Protection Modes
WP Pin Status
Write Protect Register
Part of the Array Write Protected
V
CC
Full Array (2K)
GND or Floating
Not Programmed
Normal Read/Write
GND or Floating
Programmed
First-Half of Array
(1K: 00H - 7FH)
Pin Capacitance(1)
Applicable over recommended operating range from T
A = 25°C, f = 1.0 MHz, VCC = +1.8V
Symbol
Test Condition
Max
Units
Conditions
C
I/O
Input/Output Capacitance (SDA)
8
pF
V
I/O = 0V
C
IN
Input Capacitance (A
0, A1, A2, SCL)
6
pF
V
IN = 0V
DC Characteristics
Applicable over recommended operating range from: T
AI = -40°C to +85°C, VCC = +1.8V to +5.5V, TAC = 0°C to +70°C,
V
CC = +1.8V to +5.5V (unless otherwise noted).
Symbol
Parameter
Test Condition
Min
Typ
Max
Units
V
CC1
Supply Voltage
1.8
5.5
V
V
CC2
Supply Voltage
2.7
5.5
V
V
CC3
Supply Voltage
4.5
5.5
V
I
CC
Supply Current V
CC = 5.0V
READ at 100 KHz
0.4
1.0
mA
I
CC
Supply Current V
CC = 5.0V
WRITE at 100 KHz
2.0
3.0
mA
I
SB1
Standby Current V
CC = 1.8V
V
IN = VCC or VSS
0.6
3.0
µA
I
SB2
Standby Current V
CC = 2.7V
V
IN = VCC or VSS
1.6
4.0
µA
I
SB3
Standby Current V
CC = 5.0V
V
IN = VCC or VSS
8.0
18.0
µA
I
LI
Input Leakage Current
V
IN = VCC or VSS
0.10
3.0
µA
I
LO
Output Leakage Current
V
OUT = VCC or VSS
0.05
3.0
µA
V
IL
Input Low Level(1)
-0.6
V
CC x 0.3
V
V
IH
Input High Level(1)
V
CC x 0.7
V
CC + 0.5
V
V
OL2
Output Low Level V
CC = 3.0V
I
OL = 2.1 mA
0.4
V
V
OL1
Output Low Level V
CC = 1.8V
I
OL = 0.15 mA
0.2
V




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