24LC025/SN Microchip Technology, 24LC025/SN Datasheet - Page 9
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24LC025/SN
Manufacturer Part Number
24LC025/SN
Description
IC,SERIAL EEPROM,256X8,CMOS,SOP,8PIN,PLASTIC
Manufacturer
Microchip Technology
Datasheet
1.24LC025T-IOT.pdf
(30 pages)
Specifications of 24LC025/SN
Rohs Compliant
YES
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
2K (256 x 8)
Speed
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)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
7.0
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
complete (this feature can be used to maximize bus
throughput). Once the Stop condition for a Write
command has been issued from the master, the device
initiates the internally-timed write cycle, with ACK
polling being initiated immediately. This involves the
master sending a Start condition followed by the control
byte for a Write command (R/W = 0). If the device is still
busy with the write cycle, no ACK will be returned. If no
ACK is returned, the Start bit and control byte must be
re-sent. If the cycle is complete, the device will return
the ACK and the master can then proceed with the next
Read or Write command. See Figure 7-1 for a flow
diagram of this operation.
© 2009 Microchip Technology Inc.
ACKNOWLEDGE POLLING
24AA024/24LC024/24AA025/24LC025
FIGURE 7-1:
Initiate Write Cycle
Send Control Byte
Write Command
with R/W = 0
Acknowledge
Condition to
Send Stop
(ACK = 0)?
Did Device
Send Start
Operation
Send
Next
ACKNOWLEDGE POLLING
FLOW
Yes
DS21210N-page 9
No