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IDT7203L25TPG Datasheet(PDF) 11 Page - Integrated Device Technology |
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IDT7203L25TPG Datasheet(HTML) 11 Page - Integrated Device Technology |
11 / 14 page 11 COMMERCIAL,INDUSTRIALANDMILITARY TEMPERATURERANGES IDT7203/7204/7205/7206/7207/7208 CMOS ASYNCHRONOUS FIFO 2,048 x 9, 4,096 x 9, 8,192 x 9, 16,384 x 9, 32,768 x 9 and 65,536 x 9 APRIL 3, 2006 TRUTH TABLES TABLE 1 – RESET AND RETRANSMIT SINGLE DEVICE CONFIGURATION/WIDTH EXPANSION MODE NOTE: 1. Pointer will Increment if flag is HIGH. TABLE 2 – RESET AND FIRST LOAD DEPTH EXPANSION/COMPOUND EXPANSION MODE NOTES: 1. XI is connected to XO of previous device. See Figure 14. 2. RS = Reset Input, FL/RT = First Load/Retransmit, EF = Empty Flag Output, FF = Full Flag Output, XI = Expansion Input, HF = Half-Full Flag Output Figure 14. Block Diagram of 6,144 x 9, 12,288 x 9, 24,576 x 9, 49,152 x 9, 98,304 x 9, 196,608 x 9 FIFO Memory (Depth Expansion) D W IDT 7203 7204 7205 7206 7207 7208 FF EF FL XO RS FULL EMPTY VCC R 9 9 99 XI 9 Q FF EF FL XO XI FF EF FL XO XI IDT 7203 7204 7205 7206 7207 7208 IDT 7203 7204 7205 7206 7207 7208 2661 drw16 Inputs Internal Status Outputs Mode RS FL/RT XI Read Pointer Write Pointer EF FF HF Reset 0 X 0 LocationZero LocationZero 0 1 1 Retransmit 1 0 0 LocationZero Unchanged X X X Read/Write 1 1 0 Increment (1) Increment (1) XXX Inputs Internal Status Outputs Mode RS FL/RT XI Read Pointer Write Pointer EF FF Reset First Device 0 0 (1) LocationZero LocationZero 0 1 Reset All Other Devices 0 1 (1) LocationZero LocationZero 0 1 Read/Write 1 X (1) X X X X |
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