BL24C02P 2Kbits (256×8)

BL24C02P 2Kbits (256×8) Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited

© 2016 Belling All Rights Reserved www.belling.com.cn

2-16

Pin Descriptions

Serial Clock (SCL):

The SCL input is used to positive-edge clock data in 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 Addresses (A2, A1, A0):

The A2, A1 and A0 pins are device address inputs. Typically, the A2, A1 and

A0 pins are for hardware addressing and a total of 8 devices can be connected on a single bus system.

If these pins are left floating, the A2, A1 and A0 pins will be internally pulled down to GND.

Write PROTECT (WP):

The Write Protect input, when WP is connected directly to VCC, all write operations

to the memory are inhibited. When connected to GND, allows normal write operations. If the pin is left

floating, the WP pin will be internally pulled down to GND.

2. Block Diagram

Start Stop Control

Logic

Slave Address

Comparator

Serial Bus

Control Logic

Address Counter

EEPROM ARRAY

Page Data Latch

Y-DECODER

Serial MUX

High Voltage Generator

DataOut/ACK

Write Control

Logic

NC

E1

E2

WCB

SCL

SDA

L

O

A

D

I

N

C

MATCH

EN

GND

3. ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings



Storage Temperature .......................-65°C to +150°C



Operation Temperature ....................-40°C to +85°C



Maximum Operation Voltage............. 6.25V



Voltage on Any Pin with Respect to Ground .....................-1.0V to (Vcc+1.0)V



DC Output Current ............................5.0mA

Figure 2-1 Block Diagram