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GT24C32B-2UDLI-TR

GT24C32B-2UDLI-TR

  • 厂商:

    GIANTEC(聚辰)

  • 封装:

    UDFN8L

  • 描述:

    GT24C32B-2UDLI-TR

  • 数据手册
  • 价格&库存
GT24C32B-2UDLI-TR 数据手册
GT24C32B Advanced GT24C32B 2-WIRE 32K Bits Serial EEPROM Copyright © 2014 Giantec Semiconductor Inc. (Giantec). All rights reserved. Giantec reserves the right to make changes to this specification and its products at any time without notice. Giantec products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for critical medical or surgical equipment, aerospace or military, or other applications planned to support or sustain life. It is the customer's obligation to optimize the design in their own products for the best performance and optimization on the functionality and etc. Giantec assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and prior placing orders for products. Giantec Semiconductor, Inc. C2 www.giantec-semi.com 1/27 GT24C32B Table of Contents 1. 2. 3. 4. Features ..................................................................................................................................................................... 3 General Description ............................................................................................................................................. 3 Functional Block Diagram ................................................................................................................................ 4 Pin Configuration................................................................................................................................................... 5 4.1 8-Pin SOIC, TSSOP, PDIP and MSOP ................................................................................................... 5 4.2 8-Lead UDFN and XDFN ........................................................................................................................ 5 4.3 5-Pin SOT23 ........................................................................................................................................... 5 4.4 Pin Definition ........................................................................................................................................... 5 4.5 Pin Descriptions ...................................................................................................................................... 6 5. Device Operation................................................................................................................................................... 7 5.1 2-WIRE Bus ............................................................................................................................................ 7 5.2 The Bus Protocol .................................................................................................................................... 7 5.3 Start Condition ........................................................................................................................................ 7 5.4 Stop Condition......................................................................................................................................... 7 5.5 Acknowledge ........................................................................................................................................... 7 5.6 Reset ....................................................................................................................................................... 7 5.7 Standby Mode ......................................................................................................................................... 7 5.8 Device Addressing .................................................................................................................................. 7 5.9 Write Operation ....................................................................................................................................... 7 5.10 Read Operation..................................................................................................................................... 8 5.11 Diagrams ............................................................................................................................................. 10 5.12. Timing Diagrams ................................................................................................................................ 13 6. Electrical Characteristics .............................................................................................................................. 14 6.1 Absolute Maximum Ratings .................................................................................................................. 14 6.2 Operating Range................................................................................................................................... 14 6.3 Capacitance .......................................................................................................................................... 14 6.4 DC Electrical Characteristic .................................................................................................................. 15 6.5 AC Electrical Characteristic .................................................................................................................. 16 7. Ordering Information......................................................................................................................................... 17 8. Top Markings ......................................................................................................................................................... 18 8.1 SOIC package ....................................................................................................................................... 18 8.2 TSSOP package ................................................................................................................................... 18 8.3 PDIP package ....................................................................................................................................... 18 8.4 UDFN package ..................................................................................................................................... 18 8.5 MSOP Package .................................................................................................................................... 19 8.6 XDFN Package ..................................................................................................................................... 19 8.7 SOT23 Package.................................................................................................................................... 19 9. Package Information ......................................................................................................................................... 20 9.1 SOIC ..................................................................................................................................................... 20 9.2 TSSOP .................................................................................................................................................. 21 9.3 PDIP ...................................................................................................................................................... 22 9.4 UDFN .................................................................................................................................................... 23 9.5 MSOP.................................................................................................................................................... 24 9.6 XDFN .................................................................................................................................................... 25 9.7 SOT23 ................................................................................................................................................... 26 10. Revision History ................................................................................................................................................ 27 Giantec Semiconductor, Inc. C2 www.giantec-semi.com 2/27 GT24C32B 1. Features  2 –  TM Two-Wire Serial Interface, I C – – Compatible Bi-directional data transfer protocol VCC = 1.7V to 5.5V Addition write lockable page (Identification Page) Wide-voltage Operation – Partial page writes allowed  Self timed write cycle: 5 ms (max.)  Speed: 400 KHz (1.7V) and 1 MHz (2.5V~5.5V)  Noise immunity on inputs, besides Schmitt trigger  Standby current (max.): 1 A, 5.5V  High-reliability  Read current (max.): 0.5 mA, 5.5V  Write current (max.): 0.8 mA, 5.5V  Hardware Data Protection  ESD Protection > 4000V –  Industrial grade  Packages: SOIC, TSSOP, PDIP, UDFN, MSOP, Write Protect Pin  Sequential & Random Read Features  Memory organization: 32Kb (4,096 x 8)  Page Size: 32 bytes  Page write mode – – Endurance: 1 million cycles Data retention: 100 years XDFN and SOT23  Lead-free, RoHS, Halogen free, Green 2. General Description The GT24C32B is an industrial standard electrically stored inside the memory array. erasable programmable read only memory (EEPROM) In order to refrain the state machine from entering into a device that utilizes the industrial standard 2-wire interface wrong state during power-up sequence or a power toggle for communications. The GT24C32B contains a memory off-on condition, a power on reset circuit is embedded. array of 32K bits (4,096x8), which is organized in 32-byte During power-up, the device does not respond to any per page. instructions until the supply voltage (VCC) has reached an The EEPROM operates in a wide voltage range from 1.7V acceptable stable level above the reset threshold voltage. to 5.5V, which fits most application. The product provides Once VCC passes the power on reset threshold, the device low-power operations and low standby current. The device is reset and enters into the Standby mode. This would also is offered in Lead-free, RoHS, halogen free or Green avoid any inadvertent Write operations during power-up package. The available package types are 8-pin SOIC, stage. During power-down process, the device will enter TSSOP, PDIP, UDFN, MSOP, XDFN and SOT23. into standby mode, once VCC drops below the power on The GT24C32B is compatible to the standard 2-wire bus reset threshold voltage. In addition, the device will be in protocol. The simple bus consists of Serial Clock (SCL) and standby mode after receiving the Stop command, provided Serial Data (SDA) signals. Utilizing such bus protocol, a that no internal write operation is in progress. Nevertheless, Master device, such as a microcontroller, can usually it is illegal to send a command unless the VCC is within its control one or more Slave devices, alike this GT24C32B. operating level. The bit stream over the SDA line includes a series of bytes, This product offers an additional page (Identification Page) which identifies a particular Slave device, an instruction, an of 32 bytes. The Identification Page can be used to store address within that Slave device, and a series of data, if sensitive application parameters which can be (later) appropriate. The GT24C32B also has a Write Protect permanently locked in Read-only mode. function via WP pin to cease from overwriting the data Giantec Semiconductor, Inc. C2 www.giantec-semi.com 3/27 GT24C32B 3. Functional Block Diagram 8 SDA 5 SCL 6 WP 7 X DECODER VCC HIGH VOLTAGE GENERATOR TIMING & CONTROL CONTROL LOGIC SLAVE ADDRESS REGISTER & COMPARATOR A0 1 A1 2 A2 3 WORD ADDRESS COUNTER ACK Y DECODER CLOCK DI/O GND 4 DATA REGISTER nMOS Giantec Semiconductor, Inc. C2 EEPROM ARRAY www.giantec-semi.com 4/27 GT24C32B 4. Pin Configuration 4.1 8-Pin SOIC, TSSOP, PDIP and MSOP 4.2 8-Lead UDFN and XDFN Top View Top View A0 1 8 VCC A0 1 8 VCC A1 2 7 WP A1 2 7 WP A2 3 6 SCL A2 3 6 SCL GND 4 5 SDA GND 4 5 SDA 4.3 5-Pin SOT23 Top View SCL 1 GND 2 SDA 3 5 WP 4 VCC 4.4 Pin Definition Pin No. Pin Name I/O 1 A0 I Device Address Input 2 A1 I Device Address Input 3 A2 I Device Address Input 4 GND - Ground 5 SDA I/O 6 SCL I Serial Clock Input 7 WP I Write Protect Input 8 VCC - Power Supply Giantec Semiconductor, Inc. C2 Definition Serial Address, Data input and Data output www.giantec-semi.com 5/27 GT24C32B 4.5 Pin Descriptions SCL the inputs are defaulted to zero. This input clock pin is used to synchronize the data transfer WP to and from the device. WP is the Write Protect pin. While the WP pin is connected SDA to the power supply of GT24C32B, the entire array The SDA is a bi-directional pin used to transfer addresses becomes Write Protected (i.e. the device becomes Read and data into and out of the device. The SDA pin is an open only). When WP is tied to Ground or left floating, the normal drain output and can be wired with other open drain or open write operations are allowed. collector outputs. However, the SDA pin requires a pull-up VCC resistor connected to the power supply. Supply voltage A0, A1, A2 GND The A0, A1 and A2 are the device address inputs. Ground of supply voltage Typically, the A0, A1, and A2 pins are for hardware addressing and a total of 8 devices can be connected on a single bus system. When A0, A1, and A2 are left floating, Giantec Semiconductor, Inc. C2 www.giantec-semi.com 6/27 GT24C32B 5. Device Operation The GT24C32B serial interface supports communications 2 loss), or needs to be terminated mid-stream. The reset is using industrial standard 2-wire bus protocol, such as I C. initiated when the Master device creates a Start condition. 5.1 2-WIRE Bus To do this, it may be necessary for the Master device to The two-wire bus is defined as Serial Data (SDA), and monitor the SDA line while cycling the SCL up to nine times. Serial Clock (SCL). The protocol defines any device that (For each clock signal transition to High, the Master checks sends data onto the SDA bus as a transmitter, and the for a High level on SDA.) receiving devices as receivers. The bus is controlled by 5.7 Standby Mode Master device that generates the SCL, controls the bus While in standby mode, the power consumption is minimal. access, and generates the Start and Stop conditions. The The GT24C32B enters into standby mode during one of the GT24C32B is the Slave device. following conditions: a) After Power-up, while no Op-code is 5.2 The Bus Protocol sent; b) After the completion of an operation and followed Data transfer may be initiated only when the bus is not busy. by the Stop signal, provided that the previous operation is During a data transfer, the SDA line must remain stable not Write related; or c) After the completion of any internal whenever the SCL line is high. Any changes in the SDA line write operations. while the SCL line is high will be interpreted as a Start or 5.8 Device Addressing Stop condition. The Master begins a transmission on by sending a Start The state of the SDA line represents valid data after a Start condition, then sends the address of the particular Slave condition. The SDA line must be stable for the duration of devices to be communicated. The Slave device address is 8 the High period of the clock signal. The data on the SDA line bits format as shown in Figure. 5-5. may be changed during the Low period of the clock signal. The four most significant bits of the Slave address are fixed There is one clock pulse per bit of data. Each data transfer (1010) for GT24C32B. is initiated with a Start condition and terminated by a Stop The next three bits, A0, A1 and A2, of the Slave address are condition. specifically related to EEPROM. Up to eight GT24C32B 5.3 Start Condition units can be connected to the 2-wire bus. The Start condition precedes all commands to the device The last bit of the Slave address specifies whether a Read and is defined as a High to Low transition of SDA when SCL or Write operation is to be performed. When this bit is set to is High. The EEPROM monitors the SDA and SCL lines and 1, Read operation is selected. While it is set to 0, Write will not respond until the Start condition is met. operation is selected. 5.4 Stop Condition After the Master transmits the Start condition and Slave The Stop condition is defined as a Low to High transition of address byte appropriately, the associated 2-wire Slave SDA when SCL is High. All operations must end with a Stop device, GT24C32B, will respond with ACK on the SDA line. condition. Then GT24C32B will pull down the SDA on the ninth clock 5.5 Acknowledge cycle, signaling that it received the eight bits of data. After a successful data transfer, each receiving device is The GT24C32B then prepares for a Read or Write operation required to generate an ACK. The Acknowledging device by monitoring the bus. pulls down the SDA line. 5.9 Write Operation 5.6 Reset 5.9.1 Byte Write The GT24C32B contains a reset function in case the 2-wire In the Byte Write mode, the Master device sends the Start bus transmission on is accidentally interrupted (e.g. a power Giantec Semiconductor, Inc. C2 www.giantec-semi.com 7/27 GT24C32B condition and the Slave address information (with the R/W completed the Write operation, an ACK will be returned and set to Zero) to the Slave device. After the Slave generates the host can then proceed with the next Read or Write an ACK, the Master sends the byte address that is to be operation. written into the address pointer of the GT24C32B. After 5.9.4 Write Identification Page receiving another ACK from the Slave, the Master device transmits the data byte to be written into the address memory location. The GT24C32B acknowledges once more and the Master generates the Stop condition, at which time the device begins its internal programming cycle. While this internal cycle is in progress, the device will not respond The Identification Page (32 bytes) is an additional page which can be written and (later) permanently locked in Read-only mode. It is written by issuing the Write Identification Page instruction. This instruction uses the same protocol and format as Page Write (into memory array), except for the following differences: to any request from the Master device.  Device type identifier = 1011b 5.9.2 Page Write  MSB address bits A14/A5 are don't care except for The GT24C32B is capable of 32-byte Page-Write operation. address bit A10 which must be ‗0‘. LSB address bits A Page-Write is initiated in the same manner as a Byte A4/A0 define the byte address inside the Identification Write, but instead of terminating the internal Write cycle page. after the first data word is transferred, the Master device If the Identification page is locked, the data bytes can transmit up to 31 more bytes. After the receipt of each transferred during the Write Identification Page instruction data word, the EEPROM responds immediately with an are not acknowledged (NoAck). ACK on SDA line, and the five lower order data word 5.9.5 Lock Identification Page address bits are internally incremented by one, while the The higher order bits of the data word address remain constant. permanently locks the Identification page in Read-only If a byte address is incremented from the last byte of a page, mode. The Lock ID instruction is similar to Byte Write (into it returns to the first byte of that page. If the Master device memory array) with the following specific conditions: should transmit more than 32 bytes prior to issuing the Stop  Device type identifier = 1011b. condition, the address counter will ―roll over,‖ and the  Address bit A10 must be ‗1‘; all other address bits are previously written data will be overwritten. Once all 32 bytes are received and the Stop condition has been sent by the Master, the internal programming cycle begins. At this point, Lock Identification Page instruction (Lock ID) don't care.  The data byte must be equal to the binary value xxxx xx1x, where x is don't care. all received data is written to the GT24C32B in a single 5.10 Read Operation Write cycle. All inputs are disabled until completion of the Read operations are initiated in the same manner as Write internal Write cycle. operations, except that the (R/W) bit of the Slave address is 5.9.3 Acknowledge (ACK) Polling set to ―1‖. There are three Read operation options: current The disabling of the inputs can be used to take advantage address read, random address read and sequential read. of the typical Write cycle time. Once the Stop condition is 5.10.1 Current Address Read issued to indicate the end of the host's Write operation, the The GT24C32B contains an internal address counter which GT24C32B initiates the internal Write cycle. ACK polling maintains the address of the last byte can be initiated immediately. This involves issuing the Start incremented by one. For example, if the previous operation condition followed by the Slave address for a Write is either a Read or Write operation addressed to the operation. If the EEPROM is still busy with the Write address location n, the internal address counter would operation, no ACK will be returned. If the GT24C32B has increment to address location n+1. When the EEPROM Giantec Semiconductor, Inc. C2 accessed, www.giantec-semi.com 8/27 GT24C32B receives the Slave Addressing Byte with a Read operation the memory address boundary of (R/W bit set to ―1‖), it will respond an ACK and transmit the address counter ―rolls over‖ to address 0, and the device 8-bit data byte stored at address location n+1. The Master continues to output data. (Refer to Figure 5-10. Sequential should not acknowledge the transfer but should generate a Read Diagram). Stop condition so the GT24C32B discontinues transmission. 5.10.4 Read Identification Page If 'n' is the last byte of the memory, the data from location '0' The Identification Page (32 bytes) is an additional page will be transmitted. (Refer to Figure 5-8. Current Address which can be written and (later) permanently locked in Read Diagram.) Read-only mode. 5.10.2 Random Address Read The Identification Page can be read by issuing an Read Selective Read operations allow the Master device to select at random any memory location for a Read operation. The Master device first performs a 'dummy' Write operation by sending the Start condition, Slave address and byte address of the location it wishes to read. After the GT24C32B acknowledges the byte address, the Master device resends the Start condition and the Slave address, this time with the R/W bit set to one. The EEPROM then responds with its ACK and sends the data requested. The Master device does not send an ACK but will generate a Stop condition. (Refer to Figure 5-9. Random Address Read Diagram.) 5.10.3 Sequential Read Sequential Reads can be initiated as either a Current Address Read or Random Address Read. After the GT24C32B sends the initial byte sequence, the Master device now responds with an ACK indicating it requires additional data from the GT24C32B. The EEPROM continues to output data for each ACK received. The Master device terminates the sequential Read operation by pulling SDA High (no ACK) indicating the last data word to be read, followed by a Stop condition. The data output is sequential, the array is reached, the Identification Page instruction. This instruction uses the same protocol and format as the Random Address Read (from memory array) with device type identifier defined as 1011b. The MSB address bits A14/A6 are don't care, the LSB address bits A5/A0 define the byte address inside the Identification Page. The number of bytes to read in the ID page must not exceed the page boundary (e.g.: when reading the Identification Page from location 10d, the number of bytes should be less than or equal to 22, as the ID page boundary is 32 bytes). 5.10.5 Read the lock status The locked/unlocked status of the Identification page can be checked by transmitting a specific truncated command [Identification Page Write instruction + one data byte] to the device. The device returns an acknowledge bit if the Identification page is unlocked, otherwise a NoAck bit if the Identification page is locked. Right after this, it is recommended to transmit to the device a Start condition followed by a Stop condition, so that:  Start: the truncated command is not executed because the Start condition resets the device internal logic,  Stop: the device is then set back into Standby mode by the Stop condition. with the data from address n followed by the data from address n+1,n+2 ... etc. The address counter increments by one automatically, allowing the entire memory contents to be serially read during sequential Read operation. When Giantec Semiconductor, Inc. C2 www.giantec-semi.com 9/27 GT24C32B 5.11 Diagrams Figure 5-1. Typical System Bus Configuration VCC SDA SCL Master Transmitter/Receiver GT24CXX Figure 5-2. output Acknowledge SCL from Master 1 8 9 Data Output from Transmitter TAA Data Output from Receiver TAA ACK SDA STOP CONDITION SCL START CONDITION Figure 5-3. Start and Stop Conditions Figure 5-4. Data Validity Protocol Data Change SCL Data Stable Data Stable SDA Giantec Semiconductor, Inc. C2 www.giantec-semi.com 10/27 GT24C32B Figure 5-5. Slave Address Bit 7 6 5 4 3 2 1 0 1 0 1 0 A2 A1 A0 R/W Figure 5-6. Byte Write S T A R T W R I T E Device Address SDA Bus Activity M S B Word Address Word Address A A A C* * * * C C K K K L M S S B B R/W S T O P Data A C K * =Don‘t care bits Figure 5-7. Page Write S T A R T Device Address SDA Bus Activity M S B W R I T E Word Address(n) Word Address(n) A A A C** * * C C K K K L M S S B B R/W Data(n) Data(n+1) A C K S T O P Data(n+31) A C K A C K * =Don‘t care bits Figure 5-8. Current Address Read S T A R T R E A D Device Address Data A C K SDA Bus Activity M S B L S B R/W Giantec Semiconductor, Inc. C2 S T O P N O A C K www.giantec-semi.com 11/27 GT24C32B Figure 5-9. Random Address Read S T A R T W R I T E Device Address SDA Bus Activity Word Address(n) A C* ** * K M S B S T A R T Word Address(n) A C K Device Address R E A D A C K S T O P Data n A C K N O L S B R/W * =Don‘t care bits A C K DUMMY WRITE Figure 5-10. Sequential Read Device Address SDA Bus Activity R E A D Data Byte n A C K Data Byte n+1 A C K S T O Data Byte n+x P Data Byte n+2 A C K A C K N O R/W Giantec Semiconductor, Inc. C2 A C K www.giantec-semi.com 12/27 GT24C32B 5.12. Timing Diagrams Figure 5-11. Bus Timing TR TF THIGH TLOW TSU:STO SCL TSU:STA THD:STA TSU:DAT THD:DAT TBUF SDAIN TAA TDH SDAOUT TSU:WP THD:WP WP Figure 5-12. Write Cycle Timing SCL SDA ACK Word n TWR STOP Condition Giantec Semiconductor, Inc. C2 START Condition www.giantec-semi.com 13/27 GT24C32B 6. Electrical Characteristics 6.1 Absolute Maximum Ratings Symbol Parameter Value Unit VS Supply Voltage -0.5 to + 6.5 V VP Voltage on Any Pin -0.5 to + 6.5 V TBIAS Temperature Under Bias –55 to +125 °C TSTG Storage Temperature –65 to +150 °C IOUT Output Current 5 mA Note: Stress greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other condition outside those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 6.2 Operating Range Range Ambient Temperature (TA) VCC Industrial –40°C to +85°C 1.7V to 5.5V Note: Giantec offers Industrial grade for Commercial applications (0C to +70C). 6.3 Capacitance Symbol Parameter[1, 2] Conditions Max. Unit CIN Input Capacitance VIN = 0V 6 pF CI/O Input / Output Capacitance VI/O = 0V 8 pF Notes: [1] Tested initially and after any design or process changes that may affect these parameters and not 100% tested. Test conditions: TA = 25°C, f = 1 MHz, VCC = 5.0V. [2] Giantec Semiconductor, Inc. C2 www.giantec-semi.com 14/27 GT24C32B 6.4 DC Electrical Characteristic Industrial: TA = –40°C to +85°C, VCC = 1.7V ~ 5.5V Symbol Parameter [1] VCC Test Conditions Min. Typ. Max. Unit 1.7 5.5 V VCC Supply Voltage VIH Input High Voltage 0.7*VCC VCC+1 V VIL Input Low Voltage -0.5 0.3* VCC V ILI Input Leakage Current 5V — 2 μA ILO Output Leakage 5V — 2 μA VIN = VCC max Current VOL1 Output Low Voltage 1.7V IOL = 0.15 mA — 0.2 V VOL2 Output Low Voltage 2.5V IOL = 2.1 mA — 0.4 V ISB1 Standby Current 1.7V VIN = VCC or GND — 0.2 1 μA ISB2 Standby Current 2.5V VIN = VCC or GND — 0.3 1 μA ISB3 Standby Current 5.5V VIN = VCC or GND — 0.5 1 μA 1.7V Read at 400 KHz — 0.15 mA 2.5V Read at 1 MHz — 0.2 mA 5.5V Read at 1 MHz — 0.5 mA 1.7V Write at 400 KHz — 0.5 mA 2.5V Write at 1 MHz — 0.6 mA 5.5V Write at 1 MHz — 0.8 mA ICC1 ICC2 Read Current Write Current Note: The parameters are characterized but not 100% tested. Giantec Semiconductor, Inc. C2 www.giantec-semi.com 15/27 GT24C32B 6.5 AC Electrical Characteristic Industrial: TA = –40°C to +85°C, Supply voltage = 1.7V to 5.5V Symbol Parameter [1] [2] 1.7VVCC
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