Service manual

Model no.:CT-21CBS5CPH.doc

version 1.0

Table 13

Part of the Array Protected WP PIN

Status

24C01A 24C02 24C04 24C08 24C16

At Vcc

Full (1K)

Array

Full (2K)

Array

Full (4K)

Array

Normal

Read / Write

Operation

Upper Half

(8K) Array

At GND Normal Read / Write Operation

5) Memory Organization

AT24C01A, 1K SERIAL EEPROM: Internally organized with 16 pages of 8 bytes each, the

1K requires a 7-bit data word address for random word addressing.

AT24C02, 2K SERIAL EEPROM: Internally organized with 32 pages of 8 bytes each, the

2K requires an 8-bit data word address for random word addressing.

AT24C04, 4K SERIAL EEPROM: Internally organized with 32 pages of 16 bytes each, the

4K requires a 9-bit data word address for random word addressing.

AT24C08, 8K SERIAL EEPROM: Internally organized with 64 pages of 16 bytes each, the

8K requires a 10-bit data word address for random word addressing.

AT24C16, 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.

6 ) Block Diagram

Fig. 16

7) Refer to Table 21 about Functions and Data of the IC’s Pins.