Absolute Maximum Ratings
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
Operating Temperature ................................ –55C to +125C
Storage Temperature.................................... –65C to +150C
Voltage on Any Pin
with Respect to Ground ....................................–1.0V to +7.0V
Maximum Operating Voltage .......................................... 6.25V
DC Output Current........................................................ 5.0 mA
Figure 0-1. Block Diagram
VCC
GND
WP
START
STOP
LOGIC
SCL
SDA
SERIAL
CONTROL
LOGIC
EN
H.V. PUMP/TIMING
LOAD
COMP
LOAD
DATA WORD
DATA RECOVERY
EEPROM
DEVICE
ADDRESS
COMPARATOR
INC
A2
A1
A0
R/W
ADDR/COUNTER
SERIAL MUX
Y DEC
DOUT/ACK
LOGIC
DIN
DOUT
1. Pin Description
SERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into each EEPROM
device and negative edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bidirectional for serial data transfer. This pin is open-
drain driven and may be wire-ORed with any number of other open-drain or open-collector
devices.
DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1 and A0 pins are device address inputs
that are hard wired for the AT24C02C. As many as eight 2K devices may be addressed on a sin-
gle bus system (device addressing is discussed in detail under the Device Addressing section).
WRITE PROTECT (WP): The AT24C02C has a write protect pin that provides hardware data
protection. The write protect pin allows normal read/write operations when connected to ground
2
AT24C02C [Preliminary]
8700C–SEEPR–6/10
MICROCHIP [ MICROCHIP ]
