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ST24LC21 Datasheet(PDF) 10 Page - STMicroelectronics

Part # ST24LC21
Description  1Kb x8 DUAL MODE SERIAL EEPROM for VESA Plug&Play
PDF  18 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST24LC21 Datasheet(HTML) 10 Page - STMicroelectronics

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Input Rise and Fall Times
≤ 50ns
Input Pulse Voltages SDA, SCL
0.2VCC to 0.8VCC
Input Pulse Voltages VCLK
0.4V to 2V
Input and Output Timing Ref. Voltages 0.3VCC to 0.7VCC
AC MEASUREMENT CONDITIONS
AI00825
0.8VCC
0.2VCC
0.7VCC
0.3VCC
Figure 7. AC Testing Input Output Waveforms
SCL
SDA
SCL
SDA
SDA
START
CONDITION
SDA
INPUT
SDA
CHANGE
AI00792
STOP
CONDITION
1
23
7
89
MSB
ACK
START
CONDITION
SCL
1
23
7
89
MSB
ACK
STOP
CONDITION
Figure 8. I2C Bus Protocol
10/18
ST24LC21



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