Atmel AT24C02C
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 Atmel
®
AT24C02C. As many as eight 2K devices may be addressed on a single bus system (device
addressing is discussed in detail under the Device Addressing section).
WRITE PROTECT (WP):
AT24C02C has a write protect pin that provides hardware data protection. The write
protect pin allows normal read/write operations when connected to ground (GND). When the write protect pin is
connected to V
CC
, the write protection feature is enabled and operates as shown in
Table 1-1.
WP Pin
Status
At V
CC
At GND
Write Protect
Part of the Array Protected
Atmel 24C02C
Full (2K) Array
Normal Read/Write Operations
3
8700D–SEEPR–8/10
ATMEL [ ATMEL CORPORATION ]
