Electronic Components Datasheet Search |
|
70T653MS15BCG8 Datasheet(PDF) 11 Page - Integrated Device Technology |
|
70T653MS15BCG8 Datasheet(HTML) 11 Page - Integrated Device Technology |
11 / 24 page 11 IDT70T653M High-Speed 2.5V 512K x 36 Asynchronous Dual-Port Static RAM Industrial and Commercial Temperature Ranges Timing Waveform of Write Cycle No. 1, R/W Controlled Timing(1,5,8) Timing Waveform of Write Cycle No. 2, CE Controlled Timing(1,5,8) NOTES: 1. R/W or CE or BEn = VIH during all address transitions for Write Cycles 1 and 2. 2. A write occurs during the overlap (tEW or tWP) of a CE = VIL, BEn = VIL, and a R/W = VIL for memory array writing cycle. 3. tWR is measured from the earlier of CE, BEn 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 = VIL transition occurs simultaneously with or after the R/W = VIL transition, the outputs remain in the High-impedance state. 6. Timing depends on which enable signal is asserted last, CE or R/W. 7. This parameter is guaranteed by device characterization, but is not production tested. Transition is measured 0mV from steady state with the Output Test Load (Figure 1). 8. If OE = VIL 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 = VIH 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 RAM, CE = VIL and SEM = VIH. To access semaphore, CE = VIH and SEM = VIL. tEW must be met for either condition. CE = VIL when CE0 = VIL and CE1 = VIH. CE = VIH when CE0 = VIH and/or CE1 = VIL. R/ W tWC tHZ tAW tWR tAS tWP DATAOUT (2) tWZ tDW tDH tOW OE ADDRESS DATAIN CE or SEM (9) (6) (4) (4) (3) 5679 drw 10 (7) (7) tLZ , tHZ (7) (7) BEn (9) 5679 drw 11 tWC tAS tWR tDW tDH ADDRESS DATAIN R/ W tAW tEW BEn (3) (2) (6) CE or SEM (9) (9) . . |
Similar Part No. - 70T653MS15BCG8 |
|
Similar Description - 70T653MS15BCG8 |
|
|
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 |