74138 ic In Pakistan

24C64 is a 64Kbit CMOS non-volatile serial EEPROM organized as 8K x 8-bit memory. This Memory IC confirms to Extended IIC 2-wire protocol that allows accessing of memory in excess of 16Kbit on an IIC bus. This serial communication protocol uses a Clock signal (SCL) and a Data signal (SDA) to synchronously clock data between a master (e.g. a microcontroller) and a slave (EEPROM). 24C64 is designed to minimize pin count and simplify PC board layout requirements. 24C64 offers hardware write protection whereby the entire memory array can be write-protected by connecting the WP pin to VCC. This section of memory then becomes unalterable until the WP pin is switched to VSS. This device is offered in SO, TSSOP, and DIP packages.

The ULN2003 is an array of seven NPN Darlington transistors capable of 500mA, 50V output. ULN2003 features are common-cathode flyback diodes for switching inductive loads. It can come in PDIP, SOIC, SOP, or TSSOP packaging In the same family are ULN2002A, ULN2004A, as well as ULQ2003A and ULQ2004A, designed for different logic input levels.