AT24CS01 ATMEL [ATMEL Corporation], AT24CS01 Datasheet - Page 4

• Manufacturer Part Number: AT24CS01
• Description: I2C-Compatible (2-wire) Serial EEPROM
• Manufacturer: ATMEL [ATMEL Corporation]

5.
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 (A
AT24CS01/02. As many as eight 1-Kbit or 2-Kbit devices may be addressed on a single bus system. For more detail, see
section,
Write Protect (WP): AT24CS01/02 has a Write Protect (WP) pin that provides hardware data protection. When the Write
Protect pin is connected to ground (GND), normal read/write operations to the full array are possible. When the Write
Protect pin is connected to V
This operation is summarized in
Table 5-1.
WP Pin
At GND
Status
At V
“Device Addressing” on page
CC
Write Protect
Normal Read/Write Operations
Part of the Array Protected
2
CC
, A
Atmel AT24CS01/02
, all write operations to the memory are inhibited but read operations are still possible.
1
Table 5-1
, A
0
Full Array
): The A
10.
below.
2
, A
1
and A
0
Atmel AT24CS01/02 [PRELIMINARY DATASHEET]
pins are device address inputs that are hard wired for the
8815A–SEEPR–6/12
4