AT24HC02B-PU Atmel, AT24HC02B-PU Datasheet - Page 11

• Manufacturer Part Number: AT24HC02B-PU
• Description: IC EEPROM 2KBIT 1MHZ 8DIP
• Manufacturer: Atmel

Specifications of AT24HC02B-PU

• 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-DIP (0.300", 7.62mm)
• Organization: 256 x 8
• Interface Type: 2-Wire
• Maximum Clock Frequency: 1 MHz
• Access Time: 900 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Maximum Operating Current: 3 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 2.5 V, 3.3 V, 5 V
• Memory Configuration: 256 X 8
• Clock Frequency: 1MHz
• Supply Voltage Range: 1.8V To 5.5V
• Memory Case Style: DIP
• No. Of Pins: 8
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AT24HC02B-10PU-1.8; AT24HC02B-10PU-1.8

Figure 12. Sequential Read
5134D–SEEPR–4/07
Figure 11. Random Read
SEQUENTIAL READ: Sequential reads are initiated by either a current address read or
a random address read. After the microcontroller receives a data word, it responds with
an acknowledge. As long as the EEPROM receives an acknowledge, it will continue to
increment the data word address and serially clock out sequential data words. When the
memory address limit is reached, the data word address will “roll over” and the sequen-
tial read will continue. The sequential read operation is terminated when the
microcontroller does not respond with a “0” but does generate a following stop condition,
see Figure 12.
SDA LINE
R
S
T
A
T
M
S
B
ADDRESS
DEVICE
DUMMY WRITE
W
W
R
R
T
E
I
/
C
A
K
M
S
B
ADDRESS n
WORD
A
C
K
S
A
R
T
T
M
S
B
ADDRESS
DEVICE
R
E
A
D
A
C
K
DATA n
O
N
A
C
K
S
O
P
T
11