IDT7280 IDT [Integrated Device Technology], IDT7280 Datasheet
IDT7280
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IDT7280 Summary of contents
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... FEATURES: • • • • • The IDT7280 is equivalent to two IDT7200 256 x 9 FIFOs • • • • • The IDT7281 is equivalent to two IDT7201 512 x 9 FIFOs • • • • • The IDT7282 is equivalent to two IDT7202 1,024 x 9 FIFOs • • • • • ...
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... IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9 PIN CONFIGURATION FFA GND XOA/HFA 13 EFA 14 FFB ...
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... IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 ELECTRICAL CHARACTERISTICS (Commercial ± 10 0°C to +70°C; Industrial Symbol Parameter t Shift Frequency S t Read Cycle Time RC t Access Time A t Read Recovery Time ...
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... If the read pointer is not moved after Reset (RS), the Full-Flag (FF) will go LOW after 256 writes for IDT7280, 512 writes for the IDT7281, 1,024 writes for the IDT7282, 2,048 writes for the IDT7283, 4,096 writes for the IDT7284 and 8,192 writes for the IDT7285 ...
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... IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 HF, FF NOTES: 1. EF, FF, HF may change status during Reset, but flags will be valid and around the rising edge of RS. ...
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... IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9 LAST READ IGNORED READ REF DATA OUT VALID RT W,R HF, EF Figure 7. Minimum Timing for an Empty Flag Coincident Read Pulse Figure 8. Minimum Timing for a Full Flag Coincident Write Pulse ...
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... XIR t XIS Figure 11. Expansion In 14 demonstrates a four-FIFO Depth Expansion using two IDT7280/7281/ 7282/7283/7284/7285s. Any depth can be attained by adding additional IDT7280/7281/7282/7283/7284/7285s. These FIFOs operate in the Depth Expansion mode when the following conditions are met: 1. The first FIFO must be designated by grounding the First Load (FL) control input ...
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... BIDIRECTIONAL OPERATION Applications which require data buffering between two systems (each system capable of Read and Write operations) can be achieved by pairing IDT7280/7281/7282/7283/7384/7285s as shown in Figure 16. Both Depth Expansion and Width Expansion may be used in this mode. DATA FLOW-THROUGH Two types of flow-through modes are permitted, a read flow-through and write flow-through mode ...
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... IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9 TABLE 1 — RESET AND RETRANSMIT Single Device Configuration/Width Expansion Mode RS Mode Reset 0 Retransmit 1 Read/Write 1 NOTE: 1. Pointer will increment if flag is High. TABLE 2 — RESET AND FIRST LOAD TRUTH TABLE ...
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... IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9 IDT7280/7281/ 7282/7283/ 7284/7285 DEPTH EXPANSION BLOCK NOTES: 1. For depth expansion block see section on Depth Expansion and Figure 14. 2. For Flag detection see section on Width Expansion and Figure 13. ...
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... IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9 DATA DATA OUT DATA IN DATA OUT t WEF t WLZ t A Figure 17. Read Data Flow-Through Mode t RFF t A DATA VALID OUT Figure 18. Write Data Flow-Through Mode ...
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ORDERING INFORMATION IDT XXXX X XXX Device Type Power Speed NOTE: 1. Industrial temperature range product for the 15ns speed grade is available as a standard device. DATASHEET DOCUMENT HISTORY 07/13/2001 pgs and 12. CORPORATE HEADQUARTERS 2975 Stender ...