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ST24FC21BM1 View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
ST24FC21BM1 1 Kbit (x8) Dual Mode Serial EEPROM for VESA PLUG & PLAY ST-Microelectronics
STMicroelectronics ST-Microelectronics
ST24FC21BM1 Datasheet PDF : 22 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ST24LC21B, ST24LW21, ST24FC21, ST24FC21B, ST24FW21
Figure 3. Transmit Only Mode Waveforms
VCC
SCL
SDA
VCLK
tVPU
1
2
Bit 7
Bit 6
8
9
10
11
VCC
SCL
SDA
VCLK
Bit 6
Bit 5
Bit 4
12
13
Bit 0
17
18
Bit 7
Bit 6
19
20
AI01501
Table 4. I2C Operating Modes
Mode
ST24LC21B
RW ST24FC21
bit ST24FC21B
VCLK
Current Address
Read
’1’
X
Random Address
’0’
X
Read
’1’
X
Sequential Read
’1’
X
Byte Write
’0’
VIH
Page Write
’0’
VIH
Note: X = VIH or VIL
ST24LW21
ST24FW21
WC
X
X
X
X
VIH
VIH
Bytes
Initial Sequence
1
START, Device Select, RW = ’1’
START, Device Select, RW = ’0’, Address,
1
reSTART, Device Select, RW = ’1’
1 to 128 Similar to Current or Random Mode
1
START, Device Select, RW = ’0’
8
START, Device Select, RW = ’0’
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