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CAT34C02HU4IGT Datasheet(PDF) 1 Page - ON Semiconductor |
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CAT34C02HU4IGT Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 14 page © Semiconductor Components Industries, LLC, 2011 March, 2011 − Rev. 17 1 Publication Order Number: CAT34C02/D CAT34C02 2 kb I2C EEPROM for DDR2 DIMM Serial Presence Detect Description The CAT34C02 is a 2 kb Serial CMOS EEPROM, internally organized as 16 pages of 16 bytes each, for a total of 256 bytes of 8 bits each. It features a 16−byte page write buffer and supports both the Standard (100 kHz) as well as Fast (400 kHz) I2C protocol. Write operations can be inhibited by taking the WP pin High (this protects the entire memory) or by setting an internal Write Protect flag via Software command (this protects the lower half of the memory). In addition to Permanent Software Write Protection, the CAT34C02 also features JEDEC compatible Reversible Software Write Protection for DDR2 Serial Presence Detect (SPD) applications operating over the 1.7 V to 3.6 V supply voltage range. The CAT34C02 is fully backwards compatible with earlier DDR1 SPD applications operating over the 1.7 V to 5.5 V supply voltage range. Features • Supports Standard and Fast I2C Protocol • 1.7 V to 5.5 V Supply Voltage Range • 16−Byte Page Write Buffer • Hardware Write Protection for Entire Memory • Software Write Protection for Lower 128 Bytes • Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs (SCL and SDA) • Low power CMOS Technology • 1,000,000 Program/Erase Cycles • 100 Year Data Retention • Industrial Temperature Range • This Device is Pb−Free, Halogen Free/BFR Free and RoHS Compliant* Figure 1. Functional Symbol SDA SCL WP CAT34C02 VCC VSS A2, A1, A0 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. http://onsemi.com PIN CONFIGURATION SDA WP VCC VSS A2 A1 A0 1 See detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet. ORDERING INFORMATION SCL TSSOP (Y), TDFN (VP2), UDFN (HU3), UDFN (HU4) UDFN−8 HU3 SUFFIX CASE 517AX TSSOP−8 Y SUFFIX CASE 948AL Device Address Input A0, A1, A2 Serial Data Input/Output SDA Serial Clock Input SCL Write Protect Input WP Power Supply VCC Ground VSS Function Pin Name PIN FUNCTION For the location of Pin 1, please consult the corresponding package drawing. TDFN−8 VP2 SUFFIX CASE 511AK UDFN−8 EP HU4 SUFFIX CASE 517AZ |
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