24LC21T/SN
ActiveIC,SERIAL EEPROM,128X8,CMOS,SOP,8PIN,PLASTIC ROHS COMPLIANT: YES
24LC21T/SN
ActiveIC,SERIAL EEPROM,128X8,CMOS,SOP,8PIN,PLASTIC ROHS COMPLIANT: YES
Description
General part information
24LC21 Series
The Microchip Technology Inc. 24LC21 is a 128 x 8 bit Electrically Erasable PROM. This device is designed for use in applications requiring storage and serial transmission of configuration and control information. Two modes of operation have been implemented: Transmit-only mode and Bidirectional mode. Upon power-up, the device will be in the Transmit-only mode, sending a serial bit stream of the entire memory array contents, clocked by the VCLK pin. A valid high-to-low transition on the SCL pin will cause the device to enter the Bidirectional mode, with byte selectable read/write capability of the memory array. The 24LC21 is available in a standard 8-pin PDIP and SOIC package, in both commercial and industrial temperature ranges.
Technical Specifications
Parameters and characteristics for this part
| Specification | 24LC21T/SN |
|---|---|
| Access Time | 900 ns |
| Clock Frequency | 400 kHz |
| Memory Depth | 128 |
| Memory Format | EEPROM |
| Memory Interface (Type) | I2C |
| Memory Size | 1 Kbit |
| Memory Type | Non-Volatile |
| Memory Width | 8 bit |
| Mounting Type | Surface Mount |
| Operating Temperature (Max) | 70 °C |
| Operating Temperature (Min) | 0 °C |
| Package Length | 0.154 in |
| Package Name | 8-SOIC |
| Package Width | 3.9 mm |
| Technology | EEPROM |
| Voltage - Supply (Maximum) | 5.5 V |
| Voltage - Supply (Minimum) | 2.5 V |
| Write Cycle Time - Page | 10 ms |
| Write Cycle Time - Word | 10 ms |
Pricing
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