IDT7028L20PF IDT, Integrated Device Technology Inc, IDT7028L20PF Datasheet
IDT7028L20PF
Specifications of IDT7028L20PF
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IDT7028L20PF Summary of contents
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... Features True Dual-Ported memory cells which allow simultaneous reads of the same memory location High-speed access – Commercial: 15/20ns (max.) – Industrial: 20ns (max.) Low-power operation – IDT7028L Active: 1W (typ.) Standby: 1mW (typ.) Dual chip enables allow for depth expansion without external logic ...
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... This text does not indicate orientation of the actual part marking. Industrial and Commercial Temperature Ranges address, and I/O pins that permit independent, asynchronous access for reads or writes to any location in memory. An automatic power down feature controlled by the chip enables (CE circuitry of each port to enter a very low standby power mode. ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM Pin Names Left Port Right Port CE CE Chip Enables , R/W R/W Read/Write Enable Output Enable ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM Truth Table I: Chip Enable < 0.2V >V -0. >V -0. ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM DC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range Symbol Parameter ( Input Leakage Current LI |I Output Leakage Current | LO V Output Low Voltage OL V ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM AC Test Conditions Input Pulse Levels Input Rise/Fall Times Input Timing Reference Levels Output Reference Levels Output Load Waveform of Read Cycles ADDR ( UB, LB R/W DATA OUT BUSY ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM AC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range Symbol READ CYCLE t Read Cycle Time RC t Address Access Time AA (4) t Chip Enable Access Time ACE t ...
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... ( and a R for memory array writing cycle transition, the outputs remain in the High-impedance state during an R/W controlled write cycle, this requirement does not apply and the write pulse can be as short as the IH and SEM = Industrial and Commercial Temperature Ranges (1,5,8) (7) ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM Timing Waveform of Semaphore Read after Write Timing, Either Side VALID ADDRESS SEM DATA R/W OE NOTES and LB ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM AC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range Symbol BUSY TIMING (M/S BUSY Access Time from Address Match t BAA BUSY Disable Time from Address Not Matched ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM Timing Waveform of Write with Port-to-Port Read and BUSY (M ADDR "A" R/W "A" DATA IN "A" (1) t APS ADDR "B" BUSY "B" DATA OUT "B" NOTES ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM Waveform of BUSY Arbitration Controlled by CE Timing (M ADDR "A" and "B" CE "A" (2) t APS CE "B" BUSY "B" Waveform of BUSY Arbitration Cycle Controlled by Address ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM Waveform of Interrupt Timing ADDR "A" "A" R/W "A" INT "B" ADDR "B" CE "B" OE "B" INT "B" NOTES: 1. All timing is the same for left and right ...
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... FFFF. The message (16 bits) at FFFE or FFFF is user-defined since addressable SRAM location. If the interrupt function is not used, address locations FFFE and FFFF are not used as mail boxes, but as part of the random access memory. Refer to Table IV for the interrupt operation. 14 ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM Busy Logic Busy Logic provides a hardware indication that both ports of the RAM have accessed the same location at the same time. It also allows one of the two accesses to ...
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... The eight semaphore flags reside within the IDT7028 in a separate memory space from the Dual-Port RAM. This address space is accessed by placing a LOW input on the SEM pin (which acts as a chip select for the semaphore flags) and using the other control pins (Address, CE, and R/W) as they would be used in accessing a standard Static RAM ...
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IDT7028L High-Speed 64K x 16 Dual-Port Static RAM Ordering Information XXXXX A 999 Device Power Speed Type NOTE: 1. Contact your local sales office for industrial temp range for other speeds, packages and powers. Datasheet Document History 9/30/99: Initial Public ...