IDT723642 Integrated Device Technology, Inc., IDT723642 Datasheet
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IDT723642
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IDT723642 Summary of contents
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... Two independent clocked FIFOs buffering data in oppo- site directions • Memory storage capacity: IDT723622–256 IDT723632–512 IDT723642–1024 • Mailbox bypass register for each FIFO • Programmable Almost-Full and Almost-Empty flags • Microprocessor Interface Control Logic AEA AFA • ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 DESCRIPTION (CONTINUED) Full and almost Empty) to indicate when a selected number of words is stored in memory. Communication between each port ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 PIN CONFIGURATION ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 PIN DESCRIPTIONS Symbol Name I/O A0-A35 Port-A Data I/0 AEA Port-A Almost O -Empty Flag (Port A) AEB Port-B Almost O -Empty ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 PIN DESCRIPTIONS (CONT.) Symbol Name I/O MBB Port-B Mailbox I Select MBF1 Mail1 Register O Flag MBF2 Mail2 Register O Flag ORA ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE (UN- LESS OTHERWISE NOTED) Symbol V Supply Voltage Range CC (2) V Input Voltage ...
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... This is the supply current when each input is at least one of the specified TTL voltage levels rather than -0 CSA = VIH CSB = VIH CSA = VIL CSB = VIL All Other Inputs 5.22 COMMERCIAL TEMPERATURE RANGE IDT723622 IDT723632 IDT723642 Commerical t = 15, 20 (1) Min. Typ. Max. 2.4 0 400 A0-A35 0 B0-B35 0 A0-A35 1 B0- ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 TIMING REQUIREMENTS OVER RECOMMENDED RANGES OF SUPPLY VOLTAGE AND OPER- ATING FREE-AIR TEMPERATURE Symbol Parameter f Clock Frequency, CLKA or CLKB S ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 SWITCHING CHARACTERISTICS OVER RECOMMENDED RANGES OF SUPPLY VOLTAGE AND OPERATING FREE-AIR TEMPERATURE, C Symbol Parameter t Access Time, CLKA to A0-A35 and ...
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... Valid programming values for the registers ranges from 1 to 252 for the IDT723622 508 for the IDT723632; and 1 to 1020 for the IDT723642. After all the offset registers are programmed from port A, the port-B input- ready flag (IRB) is set HIGH, and both FIFOs begin normal operation ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 port-B operation. The port-B control signals are identical to those of port A with the exception that the port-B write/read select ( ...
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... X1 (X1+1) to [1024-(Y1+1)] (1024-Y1) to 1023 512 1024 Table 4. FIF01 Flag Operatlon AEB . Y1 is the almost-full offset for FIFO1 used by (1,2) IDT723642 (1, (X2+1) to [1024-(Y2+1)] (1024-Y2) to 1023 512 1024 Table 5. FIF02 Flag Operatlon AEA . Y2 is the almost-full offset for FIFO2 used by 5.22 ...
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... An almost-full flag is HIGH when the number of words in its FIFO is less than or equal to [256-(Y+1)], [512- (Y+1)], or [1024-(Y+1)] for the IDT723622, IDT723632, or IDT723642 respectively. Note that a data word present in the or greater FIFO output register has been read from memory. SKEW1 ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLKA CLKB t RSTS RST1 FS1,FS0 IRA ORB t RSF AEB t RSF AFA t RSF MBF1 Figure 1. FIFO1 Reset Loading ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLK t t CLKH CLKL CLKA IRA t ENS CSA t ENS ENS MBA t ENS ENA ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLK t t CLKH CLKL CLKB ORB CSB W /RB MBB ENB t MDV B35 NOTE: 1. ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLKA CSA LOW HIGH t t ENS ENH MBA t t ENS ENH ENA HIGH ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLKB CSB LOW W LOW / ENS MBB t ENS ENB HIGH IRB B35 W1 ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLK t t CLKH CLKL CLKB CSB LOW W HIGH /RB MBB LOW t ENS ENB HIGH ORB B0 -B35 Previous ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLK t t CLKH CLKL CLKA CSA LOW LOW MBA LOW t ENS ENA HIGH ORA A0 -A35 ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLKB t t ENH ENS ENB t SKEW2 CLKA AEA X2 Words in FIFO2 ENA NOTES the minimum time ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLKB t ENS ENB AFB [D-(Y2+1)] Words in FIFO2 CLKA ENA NOTES the minimum time between a rising CLKB ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 CLKB CSB W /RB MBB ENB B0 - B35 CLKA MBF2 CSA MBA ENA A35 ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 300 f = 1/2 f data 0pF L 250 200 150 100 ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 PARAMETER MEASUREMENT INFORMATION From Output Under Test Timing 1.5 V Input Data, 1.5 V Enable Input VOLTAGE WAVEFORMS ...
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IDT723622/723632/723642 CMOS SyncBiFIFO 256 512 1024 ORDERING INFORMATION IDT XXXXXX X XX Device Type Power Speed X X Package Process/ Temperature Range BLANK Commercial ( +70 ...