S-34C04A 2 2-WIRE SERIAL E PROM www.ablic.com FOR DIMM SERIAL PRESENCE DETECT ABLIC Inc., 2013-2019 Rev.2.0 00 U 2 This IC is a 2-wire serial E PROM for DIMM serial presence detect which operates in 1.7 V to 3.6 V voltage ranges. This IC has the capacity of 4 K-bit and the organization of 2 pages 256-word 8-bit. Page write and sequential read are available. 2 This IC operates with the I C-bus at 1.0 MHz maximum. Caution This product is intended to use in general electronic devices such as consumer electronics, office equipment, and communications devices. Before using the product in medical equipment or automobile equipment including car audio, keyless entry and engine control unit, it is imperative to contact our sales representatives. Features Package Page write: 16 bytes / page DFN-8(2030)A Sequential read 5 Write protect function during low power supply voltage 8 Write protect: 4 1 Individual software data protection for each of four 128-byte blocks 6 *1 Endurance: 10 cycle / word (Ta = +25C) Data retention: 100 years (Ta = +25C) (3.0 2.0 t0.6 mm) Memory capacity: 4 K-bit Initial delivery state: FFh JEDEC standard compliant: EE1004-1 Current consumption: Standby mode: 3.0 A max. Read operation mode: 0.4 mA max. Write operation mode: 2.0 mA max. Operation voltage range: 1.7 V to 3.6 V Operation frequency: 1.0 MHz max. (VDD = 2.2 V to 3.6 V) 400 kHz max. (VDD = 1.7 V to 3.6 V) Noise suppression: Schmitt trigger and noise filter on input pins (SCL, SDA) Operation temperature range: Ta = 20C to +125C Lead-free (Sn 100%), halogen-free *1. For each address (Word: 8-bit) 1 2 2-WIRE SERIAL E PROM FOR DIMM SERIAL PRESENCE DETECT S-34C04A Rev.2.0 00 U Block Diagram Power-on reset Timeout VDD circuit VSS SCL Start / stop Voltage detector detector Serial clock SDA controller High-voltage generator Device address Data register comparator Address SA2 X- counter 2 E PROM decoder SA1 High-voltage SA0 detector Y-decoder Selector Data output ACK output controller 2