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IDT70T633 датащи(PDF) 25 Page - Integrated Device Technology |
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IDT70T633 датащи(HTML) 25 Page - Integrated Device Technology |
25 / 27 page 25 IDT70T633/1S High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM Industrial and Commercial Temperature Ranges Identification Register Definitions Instruction Field Value Description Revision Number (31:28) 0x0 Reserved for version number IDT Device ID (27:12) 0x33B(1) Defines IDT part number 70T633 IDT JEDEC ID (11:1) 0x33 Allows unique identification of device vendor as IDT ID Register Indicator Bit (Bit 0) 1 Indicates the presence of an ID register 5670 tbl 21 System Interface Parameters Instruction Code Description EXTEST 0000 Forces contents of the boundary scan cells onto the device outputs(1). Places the boundary scan register (BSR) between TDI and TDO. BYPASS 1111 Places the bypass register (BYR) between TDI and TDO. IDCODE 0010 Loads the ID register (IDR) with the vendor ID code and places the register between TDI and TDO. HIGHZ 0100 Places the bypass register (BYR) between TDI and TDO. Forces all device output drivers to a High-Z state. CLAMP 0011 Uses BYR. Forces contents of the boundary scan cells onto the device outputs. Places the bypass register (BYR) between TDI and TDO. SAMPLE/PRELOAD 0001 Places the boundary scan register (BSR) between TDI and TDO. SAMPLE allows data from device inputs(2) and outputs(1) to be captured in the boundary scan cells and shifted serially through TDO. PRELOAD allows data to be input serially into the boundary scan cells via the TDI. RESERVED All other codes Several combinations are reserved. Do not use codes other than those identified above. 5670 tbl 23 NOTES: 1. Device outputs = All device outputs except TDO. 2. Device inputs = All device inputs except TDI, TMS, and TRST. 3. The Boundary Scan Descriptive Language (BSDL) file for this device is available on the IDT website (www.idt.com), or by contacting your local IDT sales representative. Scan Register Sizes Register Name Bit Size Instruction (IR) 4 Bypass (BYR) 1 Identification (IDR) 32 Boundary Scan (BSR) Note (3) 5670 tbl 22 NOTE: 1. Device ID for IDT70T631 is 0x33C. |
Аналогичный номер детали - IDT70T633_12 |
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Аналогичное описание - IDT70T633_12 |
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