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CY7C1250KV18-400BZC Datasheet(PDF) 4 Page - Cypress Semiconductor |
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CY7C1250KV18-400BZC Datasheet(HTML) 4 Page - Cypress Semiconductor |
4 / 28 page CY7C1246KV18, CY7C1257KV18 CY7C1248KV18, CY7C1250KV18 Document Number: 001-57834 Rev. *B Page 4 of 28 Contents Pin Configuration ............................................................. 5 165-ball FBGA (13 × 15 × 1.4 mm) pinout .................. 5 Functional Overview ........................................................ 9 Read Operations ......................................................... 9 Write Operations ......................................................... 9 Byte Write Operations ................................................. 9 DDR Operation ............................................................ 9 Depth Expansion ......................................................... 9 Programmable Impedance .......................................... 9 Echo Clocks ................................................................ 9 Valid Data Indicator (QVLD) ...................................... 10 PLL ............................................................................ 10 Application Example ...................................................... 10 Truth Table ...................................................................... 11 Write Cycle Descriptions ............................................... 11 Write Cycle Descriptions ............................................... 12 Write Cycle Descriptions ............................................... 12 IEEE 1149.1 Serial Boundary Scan (JTAG) .................. 13 Disabling the JTAG Feature ...................................... 13 Test Access Port—Test Clock ................................... 13 Test Mode Select (TMS) ........................................... 13 Test Data-In (TDI) ..................................................... 13 Test Data-Out (TDO) ................................................. 13 Performing a TAP Reset ........................................... 13 TAP Registers ........................................................... 13 TAP Instruction Set ................................................... 13 TAP Controller State Diagram ....................................... 15 TAP Controller Block Diagram ...................................... 16 TAP Electrical Characteristics ...................................... 16 TAP AC Switching Characteristics ............................... 17 TAP Timing and Test Conditions .................................. 17 Identification Register Definitions ................................ 18 Scan Register Sizes ....................................................... 18 Instruction Codes ........................................................... 18 Boundary Scan Order .................................................... 19 Power Up Sequence in DDR II+ SRAM ......................... 20 Power Up Sequence ................................................. 20 PLL Constraints ......................................................... 20 Maximum Ratings ........................................................... 21 Operating Range ............................................................. 21 Neutron Soft Error Immunity ......................................... 21 Electrical Characteristics ............................................... 21 DC Electrical Characteristics ..................................... 21 AC Electrical Characteristics ..................................... 23 Capacitance .................................................................... 23 Thermal Resistance ........................................................ 23 Switching Characteristics .............................................. 24 Switching Waveforms .................................................... 25 Read/Write/Deselect Sequence ................................ 25 Ordering Information ...................................................... 26 Ordering Code Definitions ......................................... 26 Package Diagram ............................................................ 27 Document History Page ................................................. 28 Sales, Solutions, and Legal Information ...................... 28 Worldwide Sales and Design Support ....................... 28 Products .................................................................... 28 PSoC Solutions ......................................................... 28 [+] Feedback |
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