Rainbow Electronics AT24C16A - Manual (Page 2)

2
AT24C02A/04A/08A/16A
0976D–12/01
Block Diagram
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 must be hard wired for the AT24C02A. 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).
The AT24C04A uses the A2 and A1 inputs for hard wire addressing and a total of four
4K devices may be addressed on a single bus system. The A0 pin is a no-connect.
Absolute Maximum Ratings*
Operating Temperature.................................. -55 °C to +125°C *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.
Storage Temperature ..................................... -65 °C to +150°C
Voltage on Any Pin
with Respect to Ground .....................................-1.0V to +7.0V
Maximum Operating Voltage .......................................... 6.25V
DC Output Current........................................................ 5.0 mA