Akai LCT2715 Service Manual page 40

Absolute Maximum Ratings*
Operating Temperature................... -55°C to +125°C
Storage Temperature...................... -65°C to +150°C
Voltage on Any Pin
with Respect to Ground ..................... -0.1V to +7.0V
Maximum Operating Voltage ........................... 6.25V
DC Output Current ......................................... 5.0 mA
Block Diagram
Pin Description
SERIAL CLOCK (SCL): The SCL input is used to positive
edge clock data into each E
edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bidirectional for se-
rial 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 AT24C01A and the AT24C02. As many as eight
1K/2K devices may be addressed on a single bus system
(device addressing is discussed in detail under the Device
Addressing section).
AT24C01A/02/04/08/16
2-26
2
PROM device and negative
*NOTICE: Stresses beyond those listed under "Absolute Maxi-
mum Ratings" may cause permanent damage to the device.
This is a stress rating only and functional operation of the
device at these or any other conditions beyond those indi-
cated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions
for extended periods may affect device reliability.
The AT24C04 uses the A2 and A1 inputs for hard wire
addressing and a total of four 4K devices may be ad-
dressed on a single bus system. The A0 pin is a no con-
nect.
The AT24C08 only uses the A2 input for hardwire ad-
dressing and a total of two 8K devices may be addressed
on a single bus system. The A0 and A1 pins are no con-
nects.
The AT24C16 does not use the device address pins which
limits the number of devices on a single bus to one. The
A0, A1 and A2 pins are no connects.
(continued)