CAT24WC129PTE13

CAT24WC129 128K-Bit I2C Serial CMOS EEPROM FEATURES I 1MHz I2C Bus Compatible* I 1.8 to 6 Volt Operation I Low Power CMOS Technology I 64-Byte Page Write Buffer I Self-Timed Write Cycle with Auto-Clear I Commercial, Industrial and Automotive I Write Protect Feature I 100,000 Program/Erase Cycles I 100 Year Data Retention I 8-Pin DIP or 8-Pin SOIC H GEN FR ALO EE LE A D F R E ETM – Top 1/4 Array Protected When WP at VIH I "Green" Package Options Available Temperature Ranges DESCRIPTION The CAT24WC129 is a 128K-bit Serial CMOS E2PROM internally organized as 16384 words of 8 bits each. Catalyst’s advanced CMOS technology substantially PIN CONFIGURATION DIP Package (P, L) NC NC NC VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA SOIC Package (J, W, K, X) NC NC NC VSS PIN FUNCTIONS Pin Name SDA SCL WP VCC VSS D is 1 2 3 4 8 7 6 5 o c VCC WP SCL SDA i t n u n VCC VSS SDA WP reduces device power requirements. The CAT24WC129 features a 64-byte page write buffer. The device operates via the I2C bus serial interface and is available in 8-pin DIP or 8-pin SOIC packages. BLOCK DIAGRAM EXTERNAL LOAD d e DOUT ACK CONTROL LOGIC a P t r SENSE AMPS SHIFT REGISTERS WORD ADDRESS BUFFERS COLUMN DECODERS 512 START/STOP LOGIC XDEC 256 EEPROM 256X512 Function DATA IN STORAGE Serial Data/Address Serial Clock Write Protect +1.8V to +6V Power Supply Ground SCL STATE COUNTERS HIGH VOLTAGE/ TIMING CONTROL * Catalyst Semiconductor is licensed by Philips Corporation to carry the I2C Bus Protocol. © 2004 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 Doc. No. 1079, Rev. V CAT24WC129 ABSOLUTE MAXIMUM RATINGS* Temperature Under Bias –55°C to +125°C Storage Temperature ....................... –65°C to +150°C Voltage on Any Pin with Respect to Ground(1) ........... –2.0V to +VCC + 2.0V VCC with Respect to Ground ............... –2.0V to +7.0V Package Power Dissipation Capability (Ta = 25°C) ................................... 1.0W Lead Soldering Temperature (10 secs) ............ 300°C Output Short Circuit Current(2) ........................ 100mA RELIABILITY CHARACTERISTICS Symbol NEND TDR (3) (3) *COMMENT 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. Parameter Endurance Data Retention ESD Susceptibility Latch-up Min. 100,000 100 2000 100 Max. Units Cycles/Byte Years Volts mA Reference Test Method MIL-STD-883, Test Method 1033 MIL-STD-883, Test Method 1008 VZAP(3) ILTH(3)(4) D.C. OPERATING CHARACTERISTICS VCC = +1.8V to +6.0V, unless otherwise specified. Symbol ICC1 ICC2 ISB(5) ILI ILO VIL VIH VOL1 VOL2 Parameter Power Supply Current - Read Power Supply Current - Write Standby Current Input Leakage Current Output Leakage Current CAPACITANCE TA = 25°C, f = 1.0 MHz, VCC = 5V Symbol CI/O(3) CIN(3) Test Max. 8 6 Units pF pF Conditions VI/O = 0V VIN = 0V Input/Output Capacitance (SDA) Input Capacitance (SCL, WP) D Input Low Voltage Input High Voltage Output Low Voltage (VCC = +3.0V) Output Low Voltage (VCC = +1.8V) is o c i t n Min. –1 u n Limits Typ. 3 3 0.5 Max. 1 d e Units mA mA µA µA µA V V V V MIL-STD-883, Test Method 3015 JEDEC Standard 17 a P t r Test Conditions fSCL = 100 KHz VCC=5V fSCL = 100 KHz VCC=5V VIN = GND or VCC VCC=5V VIN = GND to VCC VOUT = GND to VCC 3 1 VCC x 0.3 VCC + 0.5 0.4 VCC x 0.7 IOL = 3.0 mA IOL = 1.5 mA Note: (1) The minimum DC input voltage is –0.5V. During transitions, inputs may undershoot to –2.0V for periods of less than 20 ns. Maximum DC voltage on output pins is VCC +0.5V, which may overshoot to VCC + 2.0V for periods of less than 20ns. (2) Output shorted for no more than one second. No more than one output shorted at a time. (3) This parameter is tested initially and after a design or process change that affects the parameter. (4) Latch-up protection is provided for stresses up to 100 mA on address and data pins from –1V to VCC +1V. (5) Maximum standby current (ISB ) = 10µA for the Automotive and Extended Automotive temperature range. Doc. No. 1079, Rev. V 2 CAT24WC129 A.C. CHARACTERISTICS VCC = +1.8V to +6V, unless otherwise specified Output Load is 1 TTL Gate and 100pF Read & Write Cycle Limits Symbol Parameter VCC=1.8V - 6.0V VCC=2.5V - 6.0V VCC=3.0V - 5.5V Min. FSCL tAA tBUF(1) tHD:STA tLOW tHIGH tSU:STA tHD:DAT tSU:DAT tR (1) Max. 100 Min. Max. 400 Min. Max. 1000 Units Clock Frequency SCL Low to SDA Data Out and ACK Out Time the Bus Must be Free Before a New Transmission Can Start Start Condition Hold Time Clock Low Period Clock High Period Start Condition Setup Time (for a Repeated Start Condition) Data In Hold Time Data In Setup Time SDA and SCL Rise Time SDA and SCL Fall Time 0.1 4.7 4.0 4.7 4.0 4.0 0 3.5 0.05 1.2 0.6 1.2 0.6 0.6 0 0.9 0.05 0.5 0.55 100 tF(1) tSU:STO tDH tWR Stop Condition Setup Time Data Out Hold Time Write Cycle Time Power-Up Timing (1)(2) Symbol tPUR tPUW Note: (1) This parameter is tested initially and after a design or process change that affects the parameter. (2) tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated. The write cycle time is the time from a valid stop condition of a write sequence to the end of the internal program/erase cycle. During the write cycle, the bus interface circuits are disabled, SDA is allowed to remain high, and the device does not respond to its slave address. FUNCTIONAL DESCRIPTION The CAT24WC129 supports the I2C Bus data transmission protocol. This Inter-Integrated Circuit Bus protocol defines any device that sends data to the bus to be a transmitter and any device receiving data to be a receiver. The transfer is controlled by the Master device which generates the serial clock and all START and STOP conditions for bus access. The CAT24WC129 operates as a Slave device. Both the Master device and Slave device can operate as either transmitter or receiver, but the Master device controls which mode is activated. is D Power-Up to Read Operation Power-Up to Write Operation o c Parameter i t n 4.7 100 u n 1.0 300 10 100 0.6 d e 0.3 300 10 Max. 1 1 a P 0.25 0.6 0.4 0.25 0 100 0.3 100 0.25 50 10 t r kHz µs µs µs µs µs µs ns ns µs ns µs ns ms 50 Units ms ms 3 Doc. No. 1079, Rev. V CAT24WC129 PIN DESCRIPTIONS SCL: Serial Clock The serial clock input clocks all data transferred into or out of the device. SDA: Serial Data/Address The bidirectional serial data/address pin is used to transfer all data into and out of the device. The SDA pin is an open drain output and can be wire-ORed with other open drain or open collector outputs. I2C BUS PROTOCOL The features of the I2C bus protocol are defined as follows: (1) Data transfer may be initiated only when the bus is not busy. (2) During a data transfer, the data line must remain stable whenever the clock line is high. Any changes in the data line while the clock line is high will be interpreted as a START or STOP condition. START Condition WP: Write Protect This input, when tied to GND, allows write operations to the entire memory. When this pin is tied to Vcc, the top 1/4 array of memory (locations 3000H to 3FFFH) is write protected. When left floating, memory is unprotected. The START Condition precedes all commands to the device, and is defined as a HIGH to LOW transition of SDA when SCL is HIGH. The CAT24WC129 monitors the SDA and SCL lines and will not respond until this condition is met. STOP Condition Figure 1. Bus Timing tF tLOW SCL tSU:STA tHD:STA tHIGH SDA IN SDA OUT Figure 2. Write Cycle Timing SCL Figure 3. Start/Stop Timing is D SDA SDA SCL o c 8TH BIT BYTE n i t n tHD:DAT tAA tLOW u n tR tSU:DAT tDH A LOW to HIGH transition of SDA when SCL is HIGH determines the STOP condition. All operations must end with a STOP condition. d e a P t r tSU:STO tBUF ACK tWR STOP CONDITION START CONDITION ADDRESS START BIT STOP BIT Doc. No. 1079, Rev. V 4 CAT24WC129 DEVICE ADDRESSING The bus Master begins a transmission by sending a START condition. The Master sends the address of the particular slave device it is requesting. The seven most significant bits of the 8-bit slave address are fixed as 1010XXX (Fig. 5), where X can be a 0 or 1. The last bit of the slave address specifies whether a Read or Write operation is to be performed. When this bit is set to 1, a Read operation is selected, and when set to 0, a Write operation is selected. After the Master sends a START condition and the slave address byte, the CAT24WC129 monitors the bus and responds with an acknowledge (on the SDA line) when its address matches the transmitted slave address. The CAT24WC129 then performs a Read or Write operation depending on the state of the R/W bit. Acknowledge After a successful data transfer, each receiving device is required to generate an acknowledge. The Acknowledging device pulls down the SDA line during the ninth clock cycle, signaling that it received the 8 bits of data. The CAT24WC129 responds with an acknowledge after receiving a START condition and its slave address. If the device has been selected along with a write operation, it responds with an acknowledge after receiving each 8bit byte. knowledge, the CAT24WC129 will continue to transmit data. If no acknowledge is sent by the Master, the device terminates data transmission and waits for a STOP condition. WRITE OPERATIONS Byte Write In the Byte Write mode, the Master device sends the START condition and the slave address information (with the R/W bit set to zero) to the Slave device. After the Slave generates an acknowledge, the Master sends two 8-bit address words that are to be written into the address pointers of the CAT24WC129. After receiving another acknowledge from the Slave, the Master device transmits the data to be written into the addressed memory location. The CAT24WC129 acknowledges once more and the Master generates the STOP condition. At this time, the device begins an internal programming cycle to nonvolatile memory. While the cycle is in progress, the device will not respond to any request from the Master device. Page Write When the CAT24WC129 begins a READ mode it transmits 8 bits of data, releases the SDA line, and monitors the line for an acknowledge. Once it receives this acFigure 4. Acknowledge Timing is D SCL FROM MASTER DATA OUTPUT FROM TRANSMITTER o c i t n 1 0 1 u n The CAT24WC129 writes up to 64 bytes of data, in a single write cycle, using the Page Write operation. The page write operation is initiated in the same manner as the byte write operation, however instead of terminating after the initial byte is transmitted, the Master is allowed to send up to 63 additional bytes. After each byte has been transmitted, CAT24WC129 will respond with an d e 8 a P t r 9 DATA OUTPUT FROM RECEIVER START ACKNOWLEDGE Figure 5. Slave Address Bits 1 0 A2 X A1 X A0 X R/W X is Don't Care, can be a '0' or a '1'. 5 Doc. No. 1079, Rev. V CAT24WC129 acknowledge, and internally increment the six low order address bits by one. The high order bits remain unchanged. If the Master transmits more than 64 bytes before sending the STOP condition, the address counter ‘wraps around’, and previously transmitted data will be overwritten. When all 64 bytes are received, and the STOP condition has been sent by the Master, the internal programming cycle begins. At this point, all received data is written to the CAT24WC129 in a single write cycle. Acknowledge Polling Disabling of the inputs can be used to take advantage of the typical write cycle time. Once the stop condition is issued to indicate the end of the host's write operation, CAT24WC129 initiates the internal write cycle. ACK polling can be initiated immediately. This involves issuing the start condition followed by the slave address for a write operation. If CAT24WC129 is still busy with the write operation, no ACK will be returned. If CAT24WC129 has completed the write operation, an ACK will be returned and the host can then proceed with the next read or write operation. read only. The CAT24WC129 will accept both slave and byte addresses, but the memory location accessed is protected from programming by the device’s failure to send an acknowledge after the first byte of data is received. READ OPERATIONS The READ operation for the CAT24WC129 is initiated in the same manner as the write operation with one exception, that R/W bit is set to one. Three different READ operations are possible: Immediate/Current Address READ, Selective/Random READ and Sequential READ. Immediate/Current Address Read WRITE PROTECTION The Write Protection feature allows the user to protect against inadvertent programming of the memory array. If the WP pin is tied to VCC, the top 1/4 array of memory (locations 3000H to 3FFFH) is protected and becomes Figure 6. Byte Write Timing S T A R T BUS ACTIVITY: MASTER *=Don't Care Bit Figure 7. Page Write Timing S T A R T S T O P P A C K A C K A C K A C K A C K A C K D S SDA LINE is S SLAVE ADDRESS o c SLAVE ADDRESS i t n ** u n A C K The CAT24WC129’s address counter contains the address of the last byte accessed, incremented by one. In other words, if the last READ or WRITE access was to address N, the READ immediately following would access data from address N+1. If N=E (where E=16383), then the counter will ‘wrap around’ to address 0 and continue to clock out data. After the CAT24WC129 receives its slave address information (with the R/W bit set to one), it issues an acknowledge, then transmits the 8 bit byte requested. The master device does not send an acknowledge, but will generate a STOP condition. Selective/Random Read d e DATA A C K a P S T O P P t r Selective/Random READ operations allow the Master device to select at random any memory location for a READ operation. The Master device first performs a BYTE ADDRESS A15–A8 A7–A0 A C K A C K BUS ACTIVITY: MASTER SDA LINE BYTE ADDRESS A15–A8 A7–A0 DATA DATA n DATA n+63 ** A C K *=Don't Care Bit Doc. No. 1079, Rev. V 6 CAT24WC129 ‘dummy’ write operation by sending the START condition, slave address and byte addresses of the location it wishes to read. After CAT24WC129 acknowledges, the Master device sends the START condition and the slave address again, this time with the R/W bit set to one. The CAT24WC129 then responds with its acknowledge and sends the 8-bit byte requested. The master device does not send an acknowledge but will generate a STOP condition. Sequential Read The Sequential READ operation can be initiated by either the Immediate Address READ or Selective READ operations. After the CAT24WC129 sends the initial 8bit byte requested, the Master will respond with an acknowledge which tells the device it requires more Figure 8. Immediate Address Read Timing data. The CAT24WC129 will continue to output an 8-bit byte for each acknowledge sent by the Master. The operation will terminate when the Master fails to respond with an acknowledge, thus sending the STOP condition. The data being transmitted from CAT24WC129 is outputted sequentially with data from address N followed by data from address N+1. The READ operation address counter increments all of the CAT24WC129 address bits so that the entire memory array can be read during one operation. If more than E (where E=16383) bytes are read out, the counter will ‘wrap around’ and continue to clock out data bytes. BUS ACTIVITY: MASTER SDA LINE S T A R T S SLAVE ADDRESS SCL SDA Figure 9. Selective Read Timing S T A R T S T A R T S A C K A C K A C K N O A C K S T O P P BUS ACTIVITY: MASTER is D SDA LINE S o c A C K DATA OUT i t n 8 8TH BIT u n DATA A C K 9 NO ACK d e S T O P P N O A C K a P t r STOP SLAVE ADDRESS BYTE ADDRESS A15–A8 A7–A0 SLAVE ADDRESS DATA ** *=Don't Care Bit 7 Doc. No. 1079, Rev. V CAT24WC129 Figure 10. Sequential Read Timing BUS ACTIVITY: MASTER SDA LINE A C K A C K A C K A C K N O A C K SLAVE ADDRESS S T O P P DATA n DATA n+1 DATA n+2 DATA n+x ORDERING INFORMATION Prefix CAT Device # 24WC129 K Suffix I Optional Company ID Product Number Temperature Range Blank = Commercial (0˚ - 70˚C) I = Industrial (-40˚ - 85˚C) A = Automotive (-40˚ - 105˚C)* * -40˚ to +125˚C is available upon request Notes: (1) The device used in the above example is a 24WC129KI-1.8TE13 (SOIC, Industrial Temperature, 1.8 Volt to 6 Volt Operating Voltage, Tape & Reel) (2) Product die revision letter is marked on top of the package as a suffix to the production date code (e.g. AYWWA). For additional information, please contact your Catalyst sales office. is D o c Package P: PDIP K: SOIC (EIAJ) J: SOIC (JEDEC) L: PDIP (Lead free, Halogen free) X: SOIC (EIAJ, Lead free, Halogen free) W: SOIC (JEDEC, Lead free, Halogen free) i t n u n d e -1.8 TE13 a P t r Rev A(2) Tape & Reel Die Revision Operating Voltage Blank: 2.5V - 6.0V 1.8: 1.8V - 6.0V 3: 3.0V - 5.5V Doc. No. 1079, Rev. V 8 REVISION HISTORY Date 12/10/2003 04/18/04 Revision Comments C D Eliminated Commercial temperature range Delete data sheet designation Update Features Update Ordering Information Update Rev Letter to T 7/23/04 8/5/04 U V Add die revision to Ordering Information Update DC Operating Characteristics & notes Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: DPP ™ AE2 ™ Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. For a complete list of patents issued to Catalyst Semiconductor contact the Company’s corporate office at 408.542.1000. CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES. Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal injury or death may occur. Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale. Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical semiconductor applications and may not be complete. is D o c i t n u n d e a P t r Catalyst Semiconductor, Inc. Corporate Headquarters 1250 Borregas Avenue Sunnyvale, CA 94089 Phone: 408.542.1000 Fax: 408.542.1200 www.catalyst-semiconductor.com Publication #: Revison: Issue date: 1079 V 08/05/04