24LC21A/SN Microchip Technology, 24LC21A/SN Datasheet - Page 13

• Manufacturer Part Number: 24LC21A/SN
• Description: IC EEPROM 1KBIT 400KHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 24LC21A/SN

• Memory Size: 1K (128 x 8)
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 100kHz, 400kHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 8-SOIC (3.9mm Width)
• Memory Configuration: 128 X 8 / 64 X 16
• Ic Interface Type: I2C
• Clock Frequency: 400kHz
• Supply Voltage Range: 2.5V To 5.5V
• Memory Case Style: SOIC
• No. Of Pins: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 7-2:
FIGURE 7-3:
© 2008 Microchip Technology Inc.
Bus Activity
Master
SDA Line
Bus Activity
SDA Line
BUS Activity
Bus Activity
Master
Control
Byte
A
C
K
RANDOM READ
SEQUENTIAL READ
S
T
A
R
T
S
1 0 1 0 0 0 0 0
Data n
Control
Byte
A
C
K
A
C
K
Data n+1
Address
Word
C
A
K
A
C
K
S
T
A
R
T
S
Data n+2
1
0
1
Control
Byte
0
0
0
A
C
K
0
1
A
C
K
24LC21A
Data n
DS21160G-page 13
Data n+X
N
O
C
A
K
S
T
O
P
P
O
N
A
C
K
S
T
O
P
P