ST24FC21M6TR STMicroelectronics, ST24FC21M6TR Datasheet - Page 6

• Manufacturer Part Number: ST24FC21M6TR
• Description: EEPROM Serial-I2C 1K-Bit 128 x 8 3.3V/5V 8-Pin SO N T/R
• Manufacturer: STMicroelectronics

Specifications of ST24FC21M6TR

• Package: 8SO N
• Interface Type: Serial-I2C
• Density: 1 Kb
• Maximum Operating Frequency: 0.1|0.4 MHz
• Maximum Random Access Time: 3500|900 ns
• Typical Operating Supply Voltage: 3.3|5 V
• Organization: 128x8
• Data Retention: 40 Year
• Hardware Data Protection: Yes
• Operating Temperature: -40 to 85 °C

ST24LC21B, ST24LW21, ST24FC21, ST24FC21B, ST24FW21
Figure 5. Error Recovery Mechanism Flowchart for the ST24FC21, ST24FC21B and ST24FW21
products
6/22
Transition
(VESA 2)
State
NO
Internal Address Pointer = 0
VCLK Internal Counter = 0
Start Internal 2 sec Timer
(START + Device Select)
Increment VCLK Counter
NO
Transmit-Only Mode
NO
Memory Power On
or Timer > 2 sec
Switch Back to
Counter = 128
I
NO
NO
SDA Hi-Z
2
C access
VCLK
VCLK
Valid
SCL
SCL
?
YES
YES
YES
YES
YES
YES
Send Data bit (MSB first) pointed
auto-increment pointed bit/byte
by the Address Pointer and
waiting for a Device Select byte
Reset VCLK Internal Counter
Reset Counter and Timer
Respond to the Incoming
and Reset Internal Timer
I
2
C communication idle
Send Acknowledge
I
2
C Command
AI01748
Transmit-Only Mode
(DDC1)
I
(DDC2B)
2
C Mode