24LC174

• Single supply with operation down to 2.5V
• 16 bytes OTP Secure Memory
• Low power CMOS technology
- 1 mA active current typical
- 10 A standby current typical at 5.5V
- 5 A standby current typical at 3.0V
• Organized as eight blocks of 256 bytes (8 x 256 x 8)
• 2-wire serial interface bus, I2C compatible
• Functional address inputs for cascading up to 8 devices
• Schmitt trigger, filtered inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz (2.5V) and 400 kHz (5V) compatibility
• Self-timed write cycle (including auto-erase)
• Page-write buffer for up to 16 bytes
• 2 ms typical write cycle time for page-write
• Hardware write protect for entire memory
• Can be operated as a serial ROM
• Factory programming (QTP) available
• ESD protection > 4,000V
• 1,000,000 Erase/Write cycles guaranteed
• Data retention > 200 years
• 8-pin DIP, 8-lead SOIC packages
• Available temperature ranges:
- Commercial (C): 0°C to +70°C
- Industrial (I): -40° to +85°

Maximum Ratings*

V_CC.......................................................................................7.0V
All inputs and outputs w.r.t. V_SS ................... -0.3V to Vcc +1.0V
Storage temperature .....................................-65°C to +150°C
Ambient temp. with power applied ................-65°C to +125°C
Soldering temperature of leads (10 seconds) ...............+300°C
ESD protection on all pins ................................................ 4 kV

*Notice: Stresses above those listed under "Maximum ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

The Microchip Technology Inc. 24LC174 is a cascadable 16K bit Electrically Erasable PROM. The device is organized as eight blocks of 256 x 8-bit memory with a 2-wire serial interface and provides a specially addressed OTP (one-time programmable) 16 byte security block. Low voltage design permits operation down to 2.5 volts with standby and active currents of only 5 A and 1 mA respectively. The 24LC174 also has a page-write capability for up to 16 bytes of data. The 24LC174 is available in the standard 8-pin DIP and 8-lead surface mount SOIC packages.The three select pins, A0, A1, and A2, function as chip select inputs and allow up to eight devices to share a common bus, for up to 128K bits total system EEPROM.