The a 64-Kb CMOS Serial EEPROM devices, internally organized as 128 pages of 64 bytes each. It features a 32-byte page write buffer and supports both the Standard (100 kHz) as well as Fast (400 kHz) I2C protocol. External address pins make it possible to address up to eight CAT24C64 devices on the same bus.
Supports Standard and Fast I2C Protocol 5.5 V Supply Voltage Range 32-Byte Page Write Buffer(1) Hardware Write Protection for entire memory Schmitt Triggers and Noise Suppression Filters
Low power CMOS technology 1,000,000 program/erase cycles 100 year data retention Industrial temperature range RoHS-compliant 8-pin PDIP, SOIC, TSSOP andNote: (1) CAT24C64 Rev. D (Not Recommended for New Designs) has 64-Byte Page Write Buffer.
For the location of Pin 1, please consult the corresponding package drawing.
A1, A2 SDA SCL WP VCC VSS Device Address Serial Data Serial Clock Write Protect Power Supply Ground
* The Green & Gold seal identifies RoHS-compliant packaging, using NiPdAu pre-plated lead frames.
2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice
ABSOLUTE MAXIMUM RATINGS(1) Storage Temperature Voltage on Any Pin with Respect to Ground(2) RELIABILITY CHARACTERISTICS(3) Symbol NEND(4) TDR Parameter Endurance Data Retention Min 1,000,000 100 Units Program/ Erase Cycles Years +6.5 V
D.C. OPERATING CHARACTERISTICS VCC to 85�C, unless otherwise specified. Symbol ICCR ICCW ISB IL VIL VIH VOL1 VOL2 Parameter Read Current Write Current Standby Current I/O Pin Leakage Input Low Voltage Input High Voltage Output Low Voltage Output Low Voltage VCC 2.5 V, IOL 3.0 mA VCC 2.5 V, IOL 1.0 mA Test Conditions Read, fSCL = 400 kHz Write, fSCL = 400 kHz All I/O Pins at GND or VCC Pin at GND or VCC -0.5 Min Max VCC x 0.3 Units mA
PIN IMPEDANCE CHARACTERISTICS VCC to 85�C, unless otherwise specified. Symbol CIN(3) IWP(5) Parameter SDA I/O Pin Capacitance Input Capacitance (other pins) WP Input Current Conditions VIN 0 V VIN 0 V VIN < VIH VIN > VIH
Note: (1) Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability. (2) The DC input voltage on any pin should not be lower than V or higher than VCC 0.5 V. During transitions, the voltage on any pin may undershoot to no less than V or overshoot to no more than VCC 1.5 V, for periods of less than 20 ns. (3) These parameters are tested initially and after a design or process change that affects the parameter according to appropriate AEC-Q100 and JEDEC test methods. (4) Page Mode, VCC 25�C (5) When not driven, the WP pin is pulled down to GND internally. For improved noise immunity, the internal pull-down is relatively strong; therefore the external driver must be able to supply the pull-down current when attempting to drive the input HIGH. To conserve power, as the input level exceeds the trip point of the CMOS input buffer 0.5 x VCC), the strong pull-down reverts to a weak current source.2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice
A.C. CHARACTERISTICS(1) VCC to 85�C. Standard Symbol FSCL tHD:STA tLOW tHIGH tSU:STA tHD:DAT tSU:DAT tR tF(2) tSU:STO tBUF tAA tDH Ti(2) tSU:WP tHD:WP tWR tPU(2, 3)
Note: (1) Test conditions according to "A.C. Test Conditions" table. (2) Tested initially and after a design or process change that affects this parameter. (3) tPU is the delay between the time VCC is stable and the device is ready to accept commands.
Parameter Clock Frequency START Condition Hold Time Low Period of SCL Clock High Period of SCL Clock START Condition Setup Time Data In Hold Time Data In Setup Time SDA and SCL Rise Time SDA and SCL Fall Time STOP Condition Setup Time Bus Free Time Between STOP and START SCL Low to Data Out Valid Data Out Hold Time Noise Pulse Filtered at SCL and SDA Inputs WP Setup Time WP Hold Time Write Cycle Time Power-up to Ready Mode
A.C. TEST CONDITIONS Input Levels Input Rise and Fall Times Input Reference Levels Output Reference Levels Output Load 0.2 x VCC 0.8 x VCC2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice