Electronic Components Datasheet Search |
|
M48Z512A-85CS9 Datasheet(PDF) 9 Page - STMicroelectronics |
|
M48Z512A-85CS9 Datasheet(HTML) 9 Page - STMicroelectronics |
9 / 17 page 9/17 M48Z512A, M48Z512AY WRITE MODE The M48Z512A/512AY is in the Write Mode when- ever W and E are active. The start of a write is ref- erenced from the latter occurring falling edge of W or E. A write is terminated by the earlier rising edge of W or E. The addresses must be held valid throughout the cycle. E or W must return high for a minimum of tE- Table 10. Write Mode AC Characteristics (TA = 0 to 70 °C; VCC = 4.75V to 5.5V or 4.5V to 5.5V) Note: 1. CL = 5pF. 2. If E goes low simultaneously with W going low, the outputs remain in the high impedance state. Symbol Parameter M48Z512A/M48Z512AY Unit -70 -85 Min Max Min Max tAVAV Write Cycle Time 70 85 ns tAVWL Address Valid to Write Enable Low 0 0 ns tAVEL Address Valid to Chip Enable Low 0 0 ns tWLWH Write Enable Pulse Width 55 65 ns tELEH Chip Enable Low to Chip Enable High 55 75 ns tWHAX Write Enable High to Address Transition 5 5 ns tEHAX Chip Enable High to Address Transition 15 15 ns tDVWH Input Valid to Write Enable High 30 35 ns tDVEH Input Valid to Chip Enable High 30 35 ns tWHDX Write Enable High to Input Transition 0 0 ns tEHDX Chip Enable High to Input Transition 10 10 ns tWLQZ (1, 2) Write Enable Low to Output Hi-Z 25 30 ns tAVWH Address Valid to Write Enable High 65 75 ns tAVEH Address Valid to Chip Enable High 65 75 ns tWHQX (1, 2) Write Enable High to Output Transition 5 5 ns HAX from E or tWHAX from W prior to the initiation of another read or write cycle. Data-in must be val- id tDVEH or tDVWH prior to the end of write and re- main valid for tEHDX or tWHDX afterward. G should be kept high during write cycles to avoid bus con- tention; although, if the output bus has been acti- vated by a low on E and G, a low on W will disable the outputs tWLQZ after W falls. |
Similar Part No. - M48Z512A-85CS9 |
|
Similar Description - M48Z512A-85CS9 |
|
|
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 |