Electronic Components Datasheet Search |
|
IDT70V24S15GI Datasheet(PDF) 11 Page - Integrated Device Technology |
|
IDT70V24S15GI Datasheet(HTML) 11 Page - Integrated Device Technology |
11 / 22 page 6.42 IDT70V24S/L High-Speed 4K x 16 Dual-Port Static RAM Industrial and Commercial Temperature Ranges 11 Timing Waveform of Write Cycle No. 1, R/W Controlled Timing(1,5,8) NOTES: 1. R/ W or CE or UB & LB must be high during all address transitions. 2. A write occurs during the overlap (tEW or tWP) of a low UB or LB and a LOW CE and a LOW R/W for memory array writing cycle. 3. tWR is measured from the earlier of CE or R/W (or SEM or R/W) going HIGH to the end of write cycle. 4. During this period, the I/O pins are in the output state and input signals must not be applied. 5. If the CE or SEM LOW transition occurs simultaneously with or after the R/W LOW transition, the outputs remain in the high-impedance state. 6. Timing depends on which enable signal is asserted last, CE, R/W or byte control. 7. This parameter is guaranteed by device characterization, but is not production tested.Transition is measured 0mV from low or high-impedance voltage with Output Test Load (Figure 2). 8. If OE is LOW during R/W controlled write cycle, the write pulse width must be the larger of tWP or (tWZ + tDW) to allow the I/O drivers to turn off and data to be placed on the bus for the required tDW. If OE is HIGH during an R/W controlled write cycle, this requirement does not apply and the write pulse can be as short as the specified tWP. 9. To access SRAM, CE = VIL, UB or LB = VIL, SEM = VIH. To access semaphore, CE = VIH or UB and LB = VIH and SEM = VIL. Either condition must be valid for the entire tEW time. R/ W tWC tHZ tAW tWR tAS tWP DATAOUT (2) tWZ tDW tDH tOW OE ADDRESS DATAIN (6) (4) (4) (7) CE or SEM 2911 drw 08 (9) CE or SEM(9) (7) (3) 2911 drw 09 tWC tAS tWR tDW tDH ADDRESS DATAIN R/ W tAW tEW UB or LB (3) (2) (6) CE or SEM (9) (9) Timing Waveform of Write Cycle No. 2, CE, UB, LB Controlled Timing(1,5) |
Similar Part No. - IDT70V24S15GI |
|
Similar Description - IDT70V24S15GI |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |