AT93C46D 3-wire Automotive Temperature Serial EEPROMs 1K (128 x 8 or 64 x 16) DATASHEET Features Medium-voltage and Standard-voltage Operation ̶ 2.5 (VCC = 2.5V to 5.5V) User-selectable Internal Organization ̶ 1K: 128 x 8 or 64 x 16 3-wire Serial Interface 2MHz Clock Rate (5V) Self-timed Write Cycle (10ms max) High Reliability ̶ ̶ Endurance: 1,000,000 Write Cycles Data Retention: 100 Years 8-lead JEDEC SOIC and TSSOP Packages Description The AT93C46D provides 1,024 bits of serial electrically erasable programmable read only memory (EEPROM) organized as 64 words of 16 bits each, when the ORG pin is connected to VCC and 128 words of 8 bits each when it is tied to ground. The device is optimized for use in many automotive applications where low power and low voltage operations are essential. The AT93C46D is available in space-saving 8-lead TSSOP and 8-lead JEDEC SOIC packages. The AT93C46D is enabled through the Chip Select pin (CS), and accessed via a 3-wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift Clock (SK). Upon receiving a READ instruction at DI, the address is decoded and the data is clocked out serially on the data output pin DO. The WRITE cycle is completely self-timed and no separate erase cycle is required before write. The Write cycle is only enabled when it is in the Erase/Write Enable state. When CS is brought “high” following the initiation of a write cycle, the DO pin outputs the Ready/Busy status. Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 1. Pin Configurations and Pinouts Table 1-1. 2. Pin Configurations Pin Name Function CS Chip Select DI Serial Data Input DO Serial Data Output GND Ground ORG Internal Organization SK Serial Data Clock VCC Power Supply 8-lead SOIC CS 1 8 VCC SK 2 7 DC DI 3 6 ORG DO 4 5 GND (Top View) Note: CS SK DI DO 1 2 3 4 8 7 6 5 VCC DC ORG GND (Top View) Drawings are not to scale. Absolute Maximum Ratings* Operating Temperature 55C to +125C Storage Temperature 65C to +150C Voltage on Any Pin with Respect to Ground 1.0V to +7.0V Maximum Operating Voltage . . . . . . . . . . . . . . . 6.25V DC Output Current . . . . . . . . . . . . . . . . . . . . . . .5.0mA 2 8-lead TSSOP AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 *Notice: Stresses beyond 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 conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability 3. Block Diagram Figure 3-1. Block Diagram VCC GND Memory Array ORG 128 x 8 or 64 x 16 Address Decoder Data Register Output Buffer DI CS SK Note: Mode Decode Logic Clock Generator DO When the ORG pin is connected to VCC, the x16 organization is selected. When it is connected to ground, the x8 organization is selected. AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 3 4. Memory Organization 4.1 Pin Capacitance Table 4-1. Pin Capacitance(1) Applicable over recommended operating range from TA = 25C, f = 1.0MHz, VCC = +5.0V (unless otherwise noted). Symbol Test Conditions COUT CIN Note: 4.2 1. Max Units Conditions Output Capacitance (DO) 5 pF VOUT = 0V Input Capacitance (CS, SK, DI) 5 pF VIN = 0V This parameter is characterized and is not 100% tested. DC Characteristics Table 4-2. DC Characteristics Applicable over recommended operating range from: TA = -40° C to +125° C, VCC = +2.5V to +5.5V (unless otherwise noted). Symbol Parameter VCC1 Supply Voltage VCC2 Supply Voltage ICC Supply Current VCC = 5.0V ISB1 Standby Current ISB2 Min Typ Max Unit 2.5 5.5 V 4.5 5.5 V Read at 1.0MHz 0.5 2.0 mA WRITE at 1.0MHz 0.5 2.0 mA VCC = 2.5V CS = 0V 6.0 10.0 μA Standby Current VCC = 5.0V CS = 0V 10.0 15.0 μA IIL Input Leakage VIN = 0V to VCC 0.1 1.0 μA IOL Output Leakage VIN = 0V to VCC 0.1 1.0 μA VIL1(1) Input Low Voltage VIH1(1) Input High Voltage VOL1 Output Low Voltage VOH1 Output High Voltage Note: 4 Test Condition 1. 2.5V VCC 5.5V 2.5V VCC 5.5V Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 0.8 2.0 VCC + 1 V 0.4 V IOL = 2.1mA IOH = 0.4mA VIL min and VIH max are reference only and are not tested. AT93C46D Automotive [DATASHEET] 0.6 2.4 V 4.3 AC Characteristics Table 4-3. AC Characteristics Applicable over recommended operating range from TA = 40°C to + 125°C, VCC = As Specified, CL = 1 TTL Gate and 100pF (unless otherwise noted). Symbol Parameter fSK SK Clock Frequency tSKH SK High Time tSKL SK Low Time tCS Minimum CS Low Time tCSS CS Setup Time tDIS DI Setup Time tCSH CS Hold Time Relative to SK tDIH DI Hold Time Relative to SK tPD1 Output Delay to ‘1’ tPD0 Output Delay to ‘0’ tSV CS to Status Valid tDF CS to DO in High-impedance tWP Write Cycle Time Endurance(1) 5.0V, 25°C Note: 1. Test Condition Min Typ Max 4.5V VCC 5.5V 0 2 2.5V VCC 5.5V 0 1 4.5V VCC 5.5V 250 2.5V VCC 5.5V 250 4.5V VCC 5.5V 250 2.5V VCC 5.5V 250 4.5V VCC 5.5V 250 2.5V VCC 5.5V 250 Relative to SK Relative to SK MHz ns ns ns 4.5V VCC 5.5V 50 2.5V VCC 5.5V 50 4.5V VCC 5.5V 100 2.5V VCC 5.5V 100 ns ns 0 4.5V VCC 5.5V 100 2.5V VCC 5.5V 100 ns ns 4.5V VCC 5.5V 250 2.5V VCC 5.5V 500 4.5V VCC 5.5V 250 2.5V VCC 5.5V 500 4.5V VCC 5.5V 250 2.5V VCC 5.5V 250 AC Test 4.5V VCC 5.5V 100 CS = VIL 2.5V VCC 5.5V 150 AC Test AC Test AC Test Units ns ns ns ns 2.5V VCC 5.5V 3 1,000,000 10 ms Write Cycles This parameter is ensured by characterization only. AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 5 5. Instruction Set for the AT93C46D Table 5-1. Instruction Set for the AT93C46D Address Instruction SB Opcode x8 x16 READ 1 10 A6 – A0 A5 – A0 EWEN 1 00 11XXXXX 11XXXX ERASE 1 11 A6 – A0 A5 – A0 WRITE 1 01 A6 – A0 A5 – A0 ERAL 1 00 10XXXXX 10XXXX WRAL 1 00 01XXXXX 01XXXX EWDS 1 00 00XXXXX 00XXXX Note: 6 Data x8 x16 Reads data stored in memory, at specified address. Write enable must precede all programming modes. Erase memory location An – A0. D7 – D0 D15 – D0 Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 Writes memory location An – A0. Erases all memory locations. Valid only at VCC = 4.5V to 5.5V. D7 – D0 D15 – D0 The ‘X’ in the address field represent don’t care values and must be clocked. AT93C46D Automotive [DATASHEET] Comments Writes all memory locations. Valid only at VCC = 4.5V to 5.5V. Disables all programming. instructions. 6. Functional Description The AT93C46D is accessed via a simple and versatile 3-wire serial communication interface. The device operation is controlled by seven instructions issued by the host processor. A valid instruction starts with a rising edge of CS and consists of a Start bit (Logic 1) followed by the appropriate Opcode and the desired memory Address location. READ: The READ instruction contains the address code for the memory location to be read. After the instruction and address are decoded, data from the selected memory location is available at the Serial Output (DO) pin. Output data changes are synchronized with the rising edges of Serial Clock (SK). Note: A dummy bit (Logic 0) precedes the 8- or 16-bit data output string. Figure 6-1. Read Timing tCS CS SK DI 1 1 0 AN A0 High-impedance DO 0 DN D0 ERASE/WRITE (EWEN): To assure data integrity, the part automatically goes into the Erase/Write Disable (EWDS) state when the power is first applied. An EWEN instruction must be executed first before any programming instructions can be carried out. Note: Once in the EWEN state, programming remains enabled until an EWDS instruction is executed or VCC power is removed from the part. Figure 6-2. EWEN Timing tCS CS SK DI 1 0 0 1 1 ... AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 7 ERASE: The Erase instruction programs all of the bits in the specified memory location to the Logic 1 state. The self-timed erase cycle starts once the ERASE instruction and address are decoded. The DO pin outputs the Ready/Busy status of the part if CS is brought high after being kept low for a minimum of 250ns (tCS). A Logic 1 at the DO pin indicates that the selected memory location has been erased, and the part is ready for another instruction. Figure 6-3. ERASE Timing tCS CS Standby Check Status SK DI 1 1 1 AN AN-1 AN-2 ... A0 tDF tSV DO High-impedance High-impedance Busy Ready tWP WRITE: The WRITE instruction contains the 8 or 16 bits of data to be written into the specified memory location. The self-timed programming cycle, tWP, starts after the last bit of data is received at serial data input pin DI. The DO pin outputs the Ready/Busy status of the part if CS is brought high after being kept low for a minimum of 250ns (tCS). A Logic 0 at DO indicates that programming is still in progress. A Logic 1 indicates that the memory location at the specified address has been written with the data pattern contained in the instruction and the part is ready for further instructions. A Ready/Busy status cannot be obtained if the CS is brought high after the end of the self-timed programming cycle, tWP. Figure 6-4. Write Timing tCS CS SK DI DO 1 0 1 AN ... A0 DN ... D0 High-impedance Busy tWP 8 AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 Ready Erase All (ERAL): The ERAL instruction programs every bit in the memory array to the Logic 1 state and is primarily used for testing purposes. The DO pin outputs the Ready/Busy status of the part if CS is brought high after being kept low for a minimum of 250ns (tCS). The ERAL instruction is valid only at VCC = 5.0V 10%. Figure 6-5. ERAL Timing(1) tCS Standby Check Status CS SK 1 DI 0 0 1 0 tDF tSV High-impedance DO High-impedance Busy Ready tWP Note: 1. Valid only at VCC = 4.5V to 5.5V. WRITE ALL (WRAL): The WRAL instruction programs all memory locations with the data patterns specified in the instruction. The DO pin outputs the Ready/Busy status of the part if CS is brought high after being kept low for a minimum of 250 ns (tCS). The WRAL instruction is valid only at VCC = 5.0V ±10%. Figure 6-6. WRAL Timing(1) tCS CS SK 1 DI 0 0 0 1 ... DN ... D0 High-impedance DO Busy Ready tWP Note: 1. Valid only at VCC = 4.5V to 5.5V. AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 9 ERASE/WRITE DISABLE (EWDS): To protect against accidental data disturb, the EWDS instruction disables all the programming modes and should be executed after all programming operations. The operation of the READ instruction is independent of both the EWEN and EWDS instructions and can be executed at any time. Figure 6-7. EWDS Timing tCS CS SK 1 DI 7. 0 0 0 ... 0 Timing Diagrams Figure 7-1. Synchronous Data Timing CS SK VIH VIL 1µs (1) tSKH tCSS VIL tDIH VIH VIL tPD0 DO (Read) tPD1 VOL tDF VOH Status Valid VOL Note: 1. This is the minimum SK period. Table 7-1. Organization Key for the Timing Diagrams AT93C46D (1K) 10 tDF VOH tSV DO (Program) tCSH VIH tDIS DI tSKL I/O x8 x 16 AN A6 A5 DN D7 D15 AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 8. Ordering Code Detail AT 9 3 C 4 6 D N - S P 2 5 - T Atmel Designator Shipping Carrier Option B or Blank = Bulk (Tubes) T = Tape and Reel Product Family 93C = 3-wire Automotive Serial EEPROM Operating Voltage 25 = 2.5V to 5.5V Device Density 46 = 1 kilobit Device Revision Package Device Grade or Wafer/Die Thickness P = Lead-free / Halogen-free Automotive Temperature Range (-40°C to +125°C) Package Variation Package Option (Package Type Dependant) N = 0.150” with SOIC S = JEDEC SOIC T = TSSOP AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 11 9. Part Markings AT93C46D: Automotive Package Marking Information 8-lead TSSOP 8-lead SOIC ATMLPYWW ### % AAAAAAAA PYWW ###% Note: Lot Number and location of assembly and on the bottom side of the package. Note 1: designates pin 1 Note 2: Package drawings are not to scale Catalog Number Truncation AT93C46D Truncation Code ###: 46D Date Codes Y = Year 4: 2014 5: 2015 6: 2016 7: 2017 Voltages 8: 2018 9: 2019 0: 2020 1: 2021 M = Month A: January B: February ... L: December WW = Work Week of Assembly 02: Week 2 04: Week 4 ... 52: Week 52 Country of Assembly Lot Number @ = Country of Assembly AAA...A = Atmel Wafer Lot Number Trace Code % = Minimum Voltage 2: 2.5V min Grade/Lead Finish Material P: Automotive/NiPdAu Atmel Truncation XX = Trace Code (Atmel Lot Numbers Correspond to Code) Example: AA, AB.... YZ, ZZ AT: Atmel ATM: Atmel ATML: Atmel 3/13/14 TITLE Package Mark Contact: [email protected] 12 93C46DAM, AT93C46D Automotive Package Marking Information AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 DRAWING NO. REV. 93C46DAM A 10. Ordering Codes Atmel Ordering Code Lead Finish Package AT93C46DN-SP25-T(1) AT93C46DN-SP25-B(2) (1) AT93C46D-TP25-T 1. 2. Operation Range 2.5V to 5.5V Automotive Temperature (-40C to 125C) 8S1 Lead-free / Halogen-free 8X AT93C46D-TP25-B(2) Notes: Voltage Tape and reel delivery: SOIC = 4,000 per reel. TSSOP = 5,000 per reel. Bulk delivery in tubes: SOIC and TSSOP = 100 per tube. Package Type 8S1 8-lead, 0.15" wide, Plastic Gull Wing Small Outline (JEDEC SOIC) 8X 8-lead, 4.40mm body, Plastic Thin Shrink Small Outline Package (TSSOP) AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 13 11. Packaging Information 11.1 8S1 — 8-lead JEDEC SOIC C 1 E E1 L N Ø TOP VIEW END VIEW e b COMMON DIMENSIONS (Unit of Measure = mm) A A1 D SIDE VIEW Notes: This drawing is for general information only. Refer to JEDEC Drawing MS-012, Variation AA for proper dimensions, tolerances, datums, etc. SYMBOL MIN A 1.35 NOM MAX – 1.75 A1 0.10 – 0.25 b 0.31 – 0.51 C 0.17 – 0.25 D 4.80 – 5.05 E1 3.81 – 3.99 E 5.79 – 6.20 e NOTE 1.27 BSC L 0.40 – 1.27 Ø 0° – 8° 6/22/11 Package Drawing Contact: [email protected] 14 TITLE 8S1, 8-lead (0.150” Wide Body), Plastic Gull Wing Small Outline (JEDEC SOIC) AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 GPC SWB DRAWING NO. REV. 8S1 G 11.2 8X — 8-lead TSSOP C 1 Pin 1 indicator this corner E1 E L1 N L Top View End View A b A1 e COMMON DIMENSIONS (Unit of Measure = mm) A2 D SYMBOL Side View Notes: 1. This drawing is for general information only. Refer to JEDEC Drawing MO-153, Variation AA, for proper dimensions, tolerances, datums, etc. 2. Dimension D does not include mold Flash, protrusions or gate burrs. Mold Flash, protrusions and gate burrs shall not exceed 0.15mm (0.006in) per side. 3. Dimension E1 does not include inter-lead Flash or protrusions. Inter-lead Flash and protrusions shall not exceed 0.25mm (0.010in) per side. 4. Dimension b does not include Dambar protrusion. Allowable Dambar protrusion shall be 0.08mm total in excess of the b dimension at maximum material condition. Dambar cannot be located on the lower radius of the foot. Minimum space between protrusion and adjacent lead is 0.07mm. 5. Dimension D and E1 to be determined at Datum Plane H. MIN NOM MAX A - - 1.20 A1 0.05 - 0.15 A2 0.80 1.00 1.05 D 2.90 3.00 3.10 2, 5 E NOTE 6.40 BSC E1 4.30 4.40 4.50 3, 5 b 0.19 0.25 0.30 4 e L 0.65 BSC 0.45 L1 C 0.60 0.75 1.00 REF 0.09 - 0.20 2/27/14 TITLE Package Drawing Contact: [email protected] GPC 8X, 8-lead 4.4mm Body, Plastic Thin Shrink Small Outline Package (TSSOP) TNR DRAWING NO. 8X AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 REV. E 15 12. 16 Revision History Doc. Rev. Date Comments 8674C 10/2014 Update the 8S1 and the 8A2 to 8X packages, template, Atmel logos, and disclaimer page. No change in functional specification. 8674B 10/2009 Updated Lit number and date and removed preliminary status. 8674A 4/2009 Initial document release. AT93C46D Automotive [DATASHEET] Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014 XXXXXX Atmel Corporation 1600 Technology Drive, San Jose, CA 95110 USA T: (+1)(408) 441.0311 F: (+1)(408) 436.4200 | www.atmel.com © 2014 Atmel Corporation. / Rev.: Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014. Atmel®, Atmel logo and combinations thereof, Enabling Unlimited Possibilities®, and others are registered trademarks or trademarks of Atmel Corporation in U.S. and other countries. Other terms and product names may be trademarks of others. DISCLAIMER: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND CONDITIONS OF SALES LOCATED ON THE ATMEL WEBSITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS AND PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and products descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. SAFETY-CRITICAL, MILITARY, AND AUTOMOTIVE APPLICATIONS DISCLAIMER: Atmel products are not designed for and will not be used in connection with any applications where the failure of such products would reasonably be expected to result in significant personal injury or death (“Safety-Critical Applications”) without an Atmel officer's specific written consent. Safety-Critical Applications include, without limitation, life support devices and systems, equipment or systems for the operation of nuclear facilities and weapons systems. Atmel products are not designed nor intended for use in military or aerospace applications or environments unless specifically designated by Atmel as military-grade. Atmel products are not designed nor intended for use in automotive applications unless specifically designated by Atmel as automotive-grade.