PinoutSpecifications Symbol Parameter Value Unit TA Ambient Operating Temperature grade 1 0 to 70 °C TSTG Storage Temperature 65 to 150 °C TLEAD Lead Temperature, Soldering (SO8 package) 40 sec (PSDIP8 package) 10 sec 215260 °C VIO Input or...
ST24LC21: PinoutSpecifications Symbol Parameter Value Unit TA Ambient Operating Temperature grade 1 0 to 70 °C TSTG Storage Temperature 65 to 150 °C TLEAD Lead Te...
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Specifications Symbol Parameter Value Unit TA Ambient Operating Temperature 40 to 125...
Specifications Symbol Parameter Value Unit TA Ambient Operating Temperature 40 to 125...

|
Symbol |
Parameter |
Value |
Unit |
|
TA |
Ambient Operating Temperature grade 1 |
0 to 70 |
°C |
|
TSTG |
Storage Temperature |
65 to 150 |
°C |
|
TLEAD |
Lead Temperature, Soldering (SO8 package) 40 sec (PSDIP8 package) 10 sec |
215 260 |
°C |
|
VIO |
Input or Output Voltages |
0.3 to 6.5 |
V |
|
VCC |
Supply Voltage |
0.3 to 6.5 |
V |
|
VESD |
Electrostatic Discharge Voltage (Human Body model) (2) |
4000 |
V |
| Electrostatic Discharge Voltage (Machine model) (3) |
500 |
V |
The ST24LC21 is a 1K bit electrically erasable programmable memory (EEPROM), organized by 8 bits.This device can operate in two modes: Transmit Only mode and I2C bidirectional mode. When powered, the device ST24LC21 is in Transmit Only mode with EEPROM data clocked out from the rising edge of the signal applied on VCLK.
The device ST24LC21 will switch to the I2C bidirectional mode upon the falling edge of the signal applied on SCL pin. The ST24LC21 cannot switch from the I2C bidirectional mode to the Transmit Only mode (except when the power supply is removed). The device operates with a power supply value as low as 2.5V. Both Plastic Dual-in-Line and Plastic Small Outline packages are available.