32K x 10 x 4/32K x 10 x 2, 64K x 10 x 4/64K x 10 x 2 and 128K x 10 x 4/128K x 10 x 2
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
List of Contents:
Features ......................................................................................................................................................................................................................... 1
DC Electrical Characteristics .......................................................................................................................................................................................... 12
AC Electrical Characteristics ........................................................................................................................................................................................... 13
AC Test Conditions ........................................................................................................................................................................................................ 14
Signal Descriptions ................................................................................................................................................................................................... 22-26
Table 2 — Default Programmable Flag Offsets ................................................................................................................................................................ 16
Table 3 — Status Flags for IDT Standard mode ............................................................................................................................................................. 19
Table 4 — Status Flags for FWFT mode ........................................................................................................................................................................ 19
Table 5 — I/O Voltage Level Associations ....................................................................................................................................................................... 20
Figure 2a. AC Test Load and Figure 2b. Lumped Capacitive Load, Typical Derating ...................................................................................................... 14
Figure 3. Programmable Flag Offset Programming Methods ........................................................................................................................................... 17
Figure 4. Offset Registers Serial Bit Sequence ................................................................................................................................................................ 18
Figure 5. Bus-Matching in Dual mode ............................................................................................................................................................................ 21
Figure 6. Echo Read Clock and Data Output Relationship .............................................................................................................................................. 26
Figure 7. Standard JTAG Timing ................................................................................................................................................................................... 27
Figure 9. TAP Controller State Diagram ......................................................................................................................................................................... 29
Figure 12. Write Cycle and Full Flag Timing (Quad mode, IDT Standard mode, SDR to SDR) ....................................................................................... 34
Figure 13. Write Cycle and Full Flag Timing (Quad mode, IDT Standard mode, DDR to DDR) ....................................................................................... 35
Figure 14. Write Cycle and Full Flag Timing (Dual mode, IDT Standard mode, DDR to SDR, x10 In to x20 Out) ............................................................ 36
Figure 15. Write Cycle and Full Flag (Dual mode, IDT Standard mode, SDR to DDR, x20 In to x10 Out) ....................................................................... 37
Figure 16. Write Cycle and Output Ready Timing (Quad mode, FWFT mode, SDR to SDR) .......................................................................................... 38
Figure 17. Write Cycle and Output Ready Timing (Quad mode, FWFT mode, DDR to DDR) .......................................................................................... 39
Figure 18. Read Cycle, Output Enable and Empty Flag Timing (Quad mode, IDT Standard mode, SDR to SDR) ........................................................... 40
Figure 19. Read Cycle, Output Enable and Empty Flag Timing (Quad mode, IDT Standard mode, DDR to DDR) .......................................................... 41
Figure 20. Read Cycle and Empty Flag Timing (Dual mode, IDT Standard mode, DDR to SDR, x20 In to x10 Out) ....................................................... 42
Figure 21. Read Cycle and Empty Flag Timing (Dual mode, IDT Standard mode, SDR to DDR, x10 In to x20 Out) ....................................................... 43
Figure 22. Read Timing and Output Ready Flag (Quad mode, FWFT mode, SDR to SDR) ........................................................................................... 44
Figure 23. Read Timing and Output Ready Timing (Quad mode, FWFT mode, DDR to DDR) ........................................................................................ 45
Figure 24. Read Cycle and Read Chip Select (Quad mode, IDT Standard mode, SDR to SDR) .................................................................................... 46
Figure 25. Read Cycle and Read Chip Select Timing (Quad mode, FWFT mode, SDR to SDR) .................................................................................... 47
Figure 26. Echo Read Clock and Read Enable Operation (Quad mode, IDT Standard mode, DDR to DDR) ................................................................. 48
Figure 27. Echo RCLK and Echo Read Enable Operation (Quad mode, FWFT mode, SDR to SDR) ............................................................................. 49
Figure 28. Echo Read Clock and Read Enable Operation (Quad mode, IDT Standard mode, SDR to SDR) .................................................................. 50
Figure 29. Loading of Programmable Flag Registers (IDT Standard and FWFT modes) ................................................................................................ 51
Figure 30. Reading of Programmable Flag Registers (IDT Standard and FWFT modes) ................................................................................................ 51
Figure 32. Synchronous Programmable Almost-Empty Flag Timing (Quad mode, IDT Standard and FWFT mode, SDR to SDR) ................................... 52
Figure 31. Synchronous Programmable Almost-Full Flag Timing (Quad mode, IDT Standard and FWFT mode, SDR to SDR) ....................................... 52
Figure 34. Asynchronous Programmable Almost-Empty Flag Timing (Quad mode, IDT Standard and FWFT mode, SDR to SDR) .................................. 53
Figure 33. Asynchronous Programmable Almost-Full Flag Timing (Quad mode, IDT Standard and FWFT mode, SDR to SDR) ...................................... 53
Figure 35. Power Down Operation ................................................................................................................................................................................ 54
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