AT24HC02BN-SH-T Atmel, AT24HC02BN-SH-T Datasheet - Page 8

• Manufacturer Part Number: AT24HC02BN-SH-T
• Description: IC EEPROM 2KBIT 1MHZ 8SOIC
• Manufacturer: Atmel

Specifications of AT24HC02BN-SH-T

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 2K (256 x 8)
• Speed: 400kHz, 1MHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Density: 2Kb
• Interface Type: Serial (2-Wire)
• Organization: 256x8
• Access Time (max): 900ns
• Frequency (max): 400KHz
• Write Protection: Yes
• Data Retention: 100Year
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Package Type: SOIC
• Operating Temp Range: -40C to 85C
• Supply Current: 3mA
• Operating Supply Voltage (min): 1.8V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AT24HC02BN-10SU-1.8 SL383; AT24HC02BN-10SU-1.8 SL383

Figure 7-3.
Figure 7-4.
8. Device Addressing
8
AT24HC02B/04B
Start and Stop Definition
Output Acknowledge
The 2Kand 4K EEPROM devices all require an 8-bit device address word following a start condi-
tion to enable the chip for a read or write operation (see to
The device address word consists of a mandatory “1”, “0” sequence for the first four most signif-
icant bits as shown. This is common to all the Serial EEPROM devices.
The next 3 bits are the A2, A1 and A0 device address bits for the 2K EEPROM. These 3 bits
must compare to their corresponding hardwired input pins.
The 4K EEPROM only uses the A2 and A1 device address bits with the third bit being a memory
address bit (See
hardwired input pins. The A0 pin is no-connect.
The eighth bit of the device address is the read/write operation select bit. A read operation is ini-
tiated if this bit is high and a write operation is initiated if this bit is low.
Upon a compare of the device address, the EEPROM will output a “0”. If a compare is not made,
the chip will return to a standby state.
Figure
10-1). The two device address bits must compare to their corresponding
Figure 10-1 on page
10).
5192C–SEEPR–01/09