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723632L15PFG Datasheet(PDF) 2 Page - Integrated Device Technology |
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723632L15PFG Datasheet(HTML) 2 Page - Integrated Device Technology |
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2 / 24 page  2 IDT723622/723632/723642 CMOS SyncBiFIFO™ 256 x 36 x 2, 512 x 36 x 2, 1,024 x 36 x 2 COMMERCIALTEMPERATURERANGE TQFP (PNG120, order code: PF) TOP VIEW DESCRIPTION (CONTINUED) PIN CONFIGURATION 3022 drw 03 A35 A34 A33 A32 VCC A31 A30 GND A29 A28 A27 A26 A25 A24 A23 GND A22 VCC A21 A20 A19 A18 GND A17 A16 A15 A14 A13 VCC A12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 B35 B34 B33 B32 GND B31 B30 B29 B28 B27 B26 VCC B25 B24 GND B23 B22 B21 B20 B19 B18 GND B17 B16 VCC B15 B14 B13 B12 GND 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 coincident. The enables for each port are arranged to provide a simple bidirectional interface between microprocessors and/or buses with syn- chronous control. Each FIFO has a programmable Almost-Empty flag (AEA and AEB) and a progammable Almost-Full flag (AFA and AFB). AEA and AEB indicate when a selected number of words remain in the FIFO memory. AFA and AFB indicate when the FIFO contains more than a selected number of words. The Input Ready (IRA, IRB) and Almost-Full (AFA, AFB) flags of a FIFO aretwo-stagesynchronizedtotheportclockthatwritesdataintoitsarray.The OutputReady(ORA,ORB)andAlmost-Empty(AEA,AEB)flagsofaFIFOare two-stagesynchronizedtotheportclockthatreadsdatafromitsarray.Offset values for the Almost-Full and Almost-Empty flags of both FIFOs can be programmedfromPortA. Two or more devices may be used in parallel to create wider data paths. If, at any time, the FIFO is not actively performing a function, the chip will automatically power down. During the power down state, supply current consumption(ICC)isataminimum.Initiatinganyoperation(byactivatingcontrol inputswillimmediatelytakethedeviceoutofthepowerdownstate. The 723622/723632/723642 are characterized for operation from 0 °C to 70°C. They are fabricated using high speed, submicron CMOS technology. |
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