FM24C02B Shanghai Fudan Microelectronics Co., Ltd., FM24C02B Datasheet - Page 5

• Manufacturer Part Number: FM24C02B
• Description: 2-wire Serial Eeprom
• Manufacturer: Shanghai Fudan Microelectronics Co., Ltd.

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 bi-directional
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 FM24C02B. 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 FM24C04B only uses the A2、A1 input for
hardwire addressing and a total of four 4K devices
may be addressed on a single bus system. The A0
pins are no connects.
Write Protect Description
Memory Organization
FM24C02B, 2K SERIAL EEPROM: Internally organized
with 32 pages of 8 bytes each, the 2K requires an
8-bit
addressing.
FM24C04B, 4K SERIAL EEPROM: Internally organized
with 32 pages of 16 bytes each, the 4K requires a
9-bit
addressing.
FM24C02B/04B/08B/16B 2-Wire Serial EEPROM
WP=GND
WP=V
WP Pin
Status
data
data
CC
word
word
Full (2K) Array
FM24C02B
address
address
for
for
random
random
Full (4K) Array
FM 24C04B
Normal Read/Write Operations
Part of the Array Protected
word
word
The FM24C08B only uses the A2 input for hardwire
addressing and a total of two 8K devices may be
addressed on a single bus system. The A0 and A1
pins are no connects.
The FM24C16B 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.
WRITE PROTECT (WP): The FM24C02B/04B/08B/16B
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
enabled.
FM24C08B, 8K SERIAL EEPROM: Internally organized
with 64 pages of 16 bytes each, the 8K requires a
10-bit
addressing.
FM24C16B, 16K SERIAL EEPROM: Internally organized
with 128 pages of 16 bytes each, the 16K requires
an 11-bit data word address for random word
addressing.
Ver 1.6
data
Full (8K) Array
FM 24C08B
word
CC,
the write protection feature is
address
for
Full (16K) Array
FM 24C16B
random
Data Sheet
word
5