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IDT7132SA20J Datasheet(PDF) 11 Page - Integrated Device Technology |
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IDT7132SA20J Datasheet(HTML) 11 Page - Integrated Device Technology |
11 / 16 page 6.42 IDT7132SA/LA and IDT 7142SA/LA High Speed 2K x 8 Dual Port Static RAM Military, Industrial and Commercial Temperature Ranges 11 AC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range(7,8) NOTES: 1. PLCC package only. 2. Port-to-port delay through RAM cells from the writing port to the reading port, refer to “Timing Waveform of Write with Port -to-Port Read and BUSY.” 3. To ensure that the earlier of the two ports wins. 4. tBDD is a calculated parameter and is the greater of 0, tWDD – tWP (actual) or tDDD – tDW (actual). 5. To ensure that a write cycle is inhibited on port "B" during contention on port "A". 6. To ensure that a write cycle is completed on port "B" after contention on port "A". 7. 'X' in part numbers indicates power rating (SA or LA). 8. Industrial temperature: for specific speeds, packages and powers contact your sales office. 7132X20(1) 7142X20(1) Com'l Only 7132X25(2) 7142X25(2) Com'l, Ind & Military 7132X35 7142X35 Com'l & Military Symbol Parameter Min.Max.Min. Max.Min. Max. Unit BUSY Timing (For Master IDT7132 Only) tBAA BUSY Access Time from Address ____ 20 ____ 20 ____ 20 ns tBDA BUSY Disable Time from Address ____ 20 ____ 20 ____ 20 ns tBAC BUSY Access Time from Chip Enable ____ 20 ____ 20 ____ 20 ns tBDC BUSY Disable Time from Chip Enable ____ 20 ____ 20 ____ 20 ns tWDD Write Pulse to Data Delay(2) ____ 50 ____ 50 ____ 60 ns tWH Write Hold After BUSY(6) 12 ____ 15 ____ 20 ____ ns tDDD Write Data Valid to Read Data Delay(2) ____ 35 ____ 35 ____ 35 ns tAPS Arbitration Priority Set-up Time(3) 5 ____ 5 ____ 5 ____ ns tBDD BUSY Disable to Valid Data(4) ____ 25 ____ 35 ____ 35 ns BUSY Timing (For Slave IDT7142 Only) tWB Write to BUSY Input(5) 0 ____ 0 ____ 0 ____ ns tWH Write Hold After BUSY(6) 12 ____ 15 ____ 20 ____ ns tWDD Write Pulse to Data Delay(2) ____ 40 ____ 50 ____ 60 ns tDDD Write Data Valid to Read Data Delay(2) ____ 30 ____ 35 ____ 35 ns 2692 tbl 11a 7132X55 7142X55 Com'l & Military 7132X100 7142X100 Com'l & Military Symbol Parameter Min. Max. Min. Max. Unit BUSY Timing (For Master IDT7132 Only) tBAA BUSY Access Time from Address ____ 30 ____ 50 ns tBDA BUSY Disable Time from Address ____ 30 ____ 50 ns tBAC BUSY Access Time from Chip Enable ____ 30 ____ 50 ns tBDC BUSY Disable Time from Chip Enable ____ 30 ____ 50 ns tWDD Write Pulse to Data Delay(2) ____ 80 ____ 120 ns tWH Write Hold After BUSY(6) 20 ____ 20 ____ ns tDDD Write Data Valid to Read Data Delay(2) ____ 55 ____ 100 ns tAPS Arbitration Priority Set-up Time(3) 5 ____ 5 ____ ns tBDD BUSY Disable to Valid Data(4) ____ 50 ____ 65 ns BUSY Timing (For Slave IDT7142 Only) tWB Write to BUSY Input(5) 0 ____ 0 ____ ns tWH Write Hold After BUSY(6) 20 ____ 20 ____ ns tWDD Write Pulse to Data Delay(2) ____ 80 ____ 120 ns tDDD Write Data Valid to Read Data Delay(2) ____ 55 ____ 100 ns 2692 tbl 11b |
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