 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
M59MR032DGC Datasheet(PDF) 9 Page - STMicroelectronics |
|
||||||||||||||||||||||||||||||
M59MR032DGC Datasheet(HTML) 9 Page - STMicroelectronics |
|
|
9 / 49 page  9/49 M59MR032C, M59MR032D Bus Invert (BINV). BINV is an input/output signal used to reduce the amount of power needed to switch the external address/data bus. The power saving is achieved by inverting the data output on ADQ0-ADQ15 every time this gives an advantage in terms of number of toggling bits. In burst mode read, each new data output from the memory is compared with the previous data. If the number of transitions required on the data bus is in excess of 8, the data is inverted and the BINV signal will be driven by the memory at VOH to inform the receiv- ing system that data must be inverted before any further processing. By doing so, the actual transi- tions on the data bus will be less than 8. In a simi- lar way, when a command is given, BINV may be driven by the system at VIH to inform the memory that the data must be inverted.Like the other input/ output pins, BINV is high impedance when the chip is deselected, output enable G is at VIH or RP is at VIL; when used as an input, BINV must follow the same setup and hold timings of the data in- puts. VDD and VDDQ Supply Voltage (1.65V to 2.0V). The main power supply for all operations (Read, Program and Erase). VDD and VDDQ must be at the same voltage. VPP Program Supply Voltage (12V). VPP is both a control input and a power supply pin. The two functions are selected by the voltage range applied to the pin; if VPP is kept in a low voltage range (0 to 2V) VPP is seen as a control input, and the current absorption is limited to 5µA (0.2µA typ- ical). In this case with VPP = VIL we obtain an ab- solute protection against program or erase; with VPP = VPP1 these functions are enabled. VPP val- ue is only sampled during program or erase write cycles; a change in its value after the operation has been started does not have any effect and program or erase are carried on regularly. If VPP is used in the 11.4V to 12.6V range (VPP2) then the pin acts as a power supply. This supply voltage must remain stable as long as program or erase are finished. In read mode the current sunk is less then 0.5mA, while during program and erase oper- ations the current may increase up to 10mA. VSS Ground. VSS is the reference for all the volt- age measurements. |
Similar Part No. - M59MR032DGC |
|
Similar Description - M59MR032DGC |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
