ASAHI KASEI

[AK6004A/08A]

DAI01E-02

2002/11

- 2 -

General Description

The AK6004A/08A is a 4096/16384-bit serial CMOS EEPROM divided into 512/2048 registers of 8

bits each.

The AK6004A/08A can operate full function under wide operating voltage range from 1.8V to 5.5V.

The charge up circuit is integrated for high voltage generation that is used for write operation.

The AK6004A/08A conforms to all specifications in the 2 wire protocol and is controlled by serial

clock (SCL) and serial data (SDA) line.

Some devices can be connected to the same bus. Each device connected to the bus is software

addressable by a unique address, and can operate as either a transmitter or receiver. In addition

to transmitters and receivers, devices can also be considered as masters or slaves when performing

data transfers (see Table1). The master is the device which initiates a data transfers on the bus

and generates the clock signals to permit that transfer. At that time, the device addressed is

considered as the slave.

TERM

DESCRIPTION

Transmitter

The device which sends the data to the bus

Receiver

The device which receives the data from the bus

Master

The device which initiates a transfer, generates clock signals and

terminates a transfer

Slave

The device addressed by a master

Table 1. Definitions

Pin arrangement

Pin Name

Function

S1, S2

Device Address Inputs

SCL

Clock Input

SDA

Data Input / Output

WC

Write Control

VCC

Power Supply

GND

Ground

NC

Not Connected

Type of Products

Model

Memory size

Temp. Range

VCC

Package

AK6004AF

4K bits

-40°C to +85°C

1.8V to 5.5V

8pin Plastic SOP

AK6008AF

16K bits

-40°C to +85°C

1.8V to 5.5V

8pin Plastic SOP

AK6004A

GND

S2

NC

S1

2

1

3

4

VCC

7

8

6

5SDA

SCL

WC

AK6008A

GND

NC

NC

NC

2

1

3

4

VCC

7

8

6

5SDA

SCL

WC