Texas Instruments TMS320F2812GHHA DSP Embedded Flash Macro Partial Circuit Analysis

Transcription

1 October 17, 2005 Texas Instruments TMS320F2812GHHA DSP Embedded Flash Macro Partial Circuit Analysis Table of Contents Introduction... Page 1 List of Figures... Page 5 Device Summary Sheet... Page 11 Flash Macro Top Level Diagram... Tab 1 Data Path... Tab 2 Address Path... Tab 3 ROM Blocks... Tab 4 Voltage Generators... Tab 5 Redundancy (Disabled)... Tab 6 Voltage Generators in Array Section... Tab 7 Other Circuitry... Tab 8 Signal Naming Conventions and Symbol Definitions... Tab 9 Signal Cross-Reference List... Tab 10 Report Evaluation... Tab 11 For questions, comments, or more information about this report, or for any additional technical needs concerning semiconductor technology, please call Sales at Chipworks. Rev. F3.0

2 Some of the information in this report may be covered by patents, mask and/or copyright protection. This report should not be taken as an inducement to infringe on these rights Chipworks Incorporated This report is provided exclusively for the use of the purchasing organization. It can be freely copied and distributed within the purchasing organization, conditional upon the accompanying Chipworks accreditation remaining attached. Distribution of the entire report outside of the purchasing organization is strictly forbidden. The use of portions of the document for the support of the purchasing organization's corporate interest (e.g., licensing or marketing activities) is permitted, as defined by the fair use provisions of the copyright act. Accreditation to Chipworks must be attached to any portion of the reproduced information.

3 Embedded Flash Macro Page 7 List of Figures Package Markings Package X-Ray Pin Configuration (Bottom View) Die Markings Die Photograph Annotated Die Photograph Annotated Embedded Flash Macro Memory Locations Annotated Embedded Flash Macro Circuit Locations Flash Cell Image Flash Cell Image 2 (Showing Floating Gate) Flash Cell Image 3 (Floating Gate Removed) Flash Memory Cells in a 8K x 16 Sector Poly Layer Reference Cells for Sense Amplifier Poly Layer (Refer to Schematic 7.1.0) Redundancy Programming Elements (Disabled) Poly Layer (Refer to Schematics and 6.5.0) Redundancy Programming Elements (Disabled) M1 Layer (Refer to Schematics and 6.5.0) Redundancy Programming Elements 2 (Disabled) M1 Layer (Refer to Schematics and 6.5.0) ROM 1 Poly Layer ROM 2 Poly Layer N-Type Differential Amplifier 1 (Refer to Schematic 5.6.0) N-Type Differential Amplifier 2 and Poly Resistor Poly Layer (Refer to Schematic 5.3.0) P-Type Differential Amplifier 1 Poly Layer (Refer to Schematic 5.4.0) P-Type Differential Amplifier 2 Poly Layer (Refer to Schematic 5.2.0) PMOS Transistor Types Poly Layer (Refer to Schematic 5.4.0) PNP Transistor Poly Layer (Refer to Schematic 5.2.0) Flash Memory Array Sector and Word Line Definitions

4 Embedded Flash Macro Page Flash Macro Top Level Diagram Data Path Memory Array (Right) Memory Array (Left) Read and Write Access Sense Amplifiers Redundant Sense Amplifier Data Output Buffers Data Input Buffers Data Input Registers Address Path Address Latches Sector Decoders Sector (OTP) Decoder Sector Decoder Row Address Path Sector Row Address Buffers Row Predecoder Row Decoders Sector Row Decoders Shifting Word Line Access (Sectors 0) Word Line Drivers (Sector 0) Shifting Word Line Access (Sectors 1,2,3,8,9&10) Word Line Drivers (Sectors 1,2,3,8,9 & 10) Shifting Word Line Access (Sectors 4,5,6 & 7) Word Line Drivers (Sectors 4,5,6 & 7) Column Address Path Bit Line Reset Decoder

5 Embedded Flash Macro Page Column Pre-decoder Column Decoder Main Column Decoder Data Line Select ROM Blocks ROM2 Address Buffer Row Decoder/Driver ROM2 Cell Array and Drivers ROM1 Address Latches ROM1 Address Buffer ROM1 Address Decoders ROM1 Output Control ROM1 Cell Array and Drivers ROM1 Enable Circuits Contents of ROM2, Part Contents of ROM2, Part Contents of ROM1, Part Contents of ROM1, Part Voltage Generators Bias Generator Bandgap Reference Generator VDD3VFL Detector Reference Voltage Generator Program/Erase Voltage Generators Positive Voltage Generator Positive Voltage Switch Frequency Divider II Positive Voltage Pump

6 Embedded Flash Macro Page Voltage Detector II High-Level Shifter Circuit II Control Logic Voltage Detector III Negative Voltage Generator Negative Voltage Switch Frequency Divider Negative Voltage Pump Voltage Detector I Low-Level Shifter Circuit I Control Logic VPP Generator VPP Voltage Divider Circuit VPP Detector I VPP Detector II VPP Oscillator and Driver VPP Pump Buffer I Voltage Regulator Voltage Regulator Voltage Regulator Control Logic Programmable Resistor Voltage Regulator Control Logic Programmable Resistor Voltage Regulator Control Logic Programmable Resistor Internal Voltage Switch

7 Embedded Flash Macro Page Voltage Switch Voltage Switch Voltage Switch Voltage Switch Voltage Switch Voltage Switch Redundancy (Disabled) Redundancy Controls Address Level Shifters Programming Word Line Control Programming Precharge and Equalize Redundancy Programming Row Redundancy Programming (Disabled) Redundant Row Decoders Cascaded Redundant Row Decoders Column Redundancy Programming (Disabled) Redundant Data Line Select Predecoders Redundant Data Line Select Decoders Voltage Generators in Array Section VBREF Generator Bias Voltage Generator Reference Cell Bias Control Voltage Generator for Array Reference Circuit Reference Circuit Reference Circuit Source/Cell-Ring Voltages Word Line Voltage Switch

8 Embedded Flash Macro Page VPWL Generator VPP1 Generator Other Circuitry Flash Input Load Circuit Input Buffer A.1.0 Symbol Conventions - 1 A.1.1 Symbol Conventions - 2 A.1.2 Symbol Conventions - 3 A.2.0 Symbol Definitions - 1 A.2.1 Symbol Definitions - 2 A.2.2 Symbol Definitions - 3 A.3.0 Logic Gate Size Notation A.4.0 Transistor Size Notation A.5.0 Capacitor Size Notation A.6.0 Resistor Size Notation

9 Embedded Flash Macro Circuit Analysis Report Evaluation We value your business relationship at Chipworks. Your feedback is very important to help us better serve your future needs. Please take a few minutes to complete this evaluation to let us know if you were satisfied with this report. The information you provide will be used to strengthen our service quality program. Please rate Chipworks on this report at the following: On-Line Evaluation Form Or use the attached Report Evaluation Fax Back version on the next page. Rev /14/05 12:41 PM Y:\IRR\Texas_Instruments\TMS320F2812GHHA\CAR \CAR-report_evaluation.doc