AT34C02C View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
AT34C02C
Atmel Corporation
'AT34C02C' PDF : 18 Pages View PDF
AT34C02C
tive coupling that may appear during customer applications, Atmel recommends always
connecting the address pins to a known state. When using a pull-up resistor, Atmel recommends
using 10kΩ or less.
WRITE PROTECT (WP): The write protect input, when connected to GND, allows normal write
operations. When WP is connected directly to Vcc, all write operations to the memory are inhib-
ited. If the pin is left floating, the WP pin will be internally pulled down to GND. However, due to
capacitive coupling that may appear during customer applications, Atmel recommends always
connecting the WP pins to a known state. When using a pull-up resistor, Atmel recommends
using 10kΩ or less.
Table 2. AT34C02C Write Protection Modes
WP Pin Status
Permanent Write Protect
Register
VCC
GND or Floating
–
Not Programmed
GND or Floating
Programmed
GND or Floating
–
Reversible Write Protect
Register
–
Not Programmed
–
Programmed
Part of the Array Write
Protected
Full Array (2K)
Normal Read/Write
First-Half of Array
(1K: 00H - 7FH)
First-Half of Array
(1K: 00H - 7FH)
Table 3. Pin Capacitance(1)
Applicable over recommended operating range from TA = 25⋅C, f = 400 kHz, VCC = +2.5V
Symbol Test Condition
Max
CI/O
Input/Output Capacitance (SDA)
8
CIN
Input Capacitance (A0, A1, A2, SCL)
6
Note: 1. This parameter is characterized and is not 100% tested.
Units
pF
pF
Conditions
VI/O = 0V
VIN = 0V
Table 4. DC Characteristics
Applicable over recommended operating range from: TA = –40⋅C to +125⋅C, VCC = +2.5V to +5.5V, (unless otherwise noted)
Symbol Parameter
Test Condition
Min
Typ
Max
Units
VCC
ICC
ICC
ISB2
ISB3
ILI
ILO
VIL
VIH
VOL
Note:
Supply Voltage
Supply Current VCC = 5.0V
Supply Current VCC = 5.0V
Standby Current VCC = 2.5V
Standby Current VCC = 5.0V
Input Leakage Current
Output Leakage Current
Input Low Level(1)
READ at 100 kHz
WRITE at 100 kHz
VIN = VCC or VSS
VIN = VCC or VSS
VIN = VCC or VSS
VOUT = VCC or VSS
Input High Level(1)
Output Low Level VCC = 2.5V
IOL = 3.0 mA
1. VIL min and VIH max are reference only and are not tested.
2.5
5.5
V
0.4
1.0
mA
2.0
3.0
mA
1.6
4.0
µA
8.0
18.0
µA
0.10
3.0
µA
0.05
3.0
µA
–0.6
VCC x 0.7
VCC x 0.3
V
VCC + 0.5
V
0.4
V
3
5242B–SEEPR–01/09
Share Link: 