Electronic Components Datasheet Search |
|
M66287FP Datasheet(PDF) 11 Page - Mitsubishi Electric Semiconductor |
|
M66287FP Datasheet(HTML) 11 Page - Mitsubishi Electric Semiconductor |
11 / 21 page MITSUBISHI <DIGITAL ASSP> M66287FP 262144-word x 8-bit x 3-FIELD MEMORY © 2002 MITSUBISHI ELECTRIC CORPORATION 11 POWER - ON After power-on, this IC initializes some circuits of internal FIFO (1.8 V), using the built-in power-on reset circuit. This power-on reset is performed by using the VCC18 = 1.8 V system power supply. Either of the following conditions (1) or (2) should be met according to the power-on time of the VCC18. (1) When the power-on time of the VCC1.8 is 1 msec or less: Some circuits of internal FIFO are initialized by the built-in power-on reset circuit. No restriction is imposed on the power-on sequence between VCC18 and VCCIO = 3.3 V system power supply. When powering on again after power-on, provide an interval of 100 ms or more for the VCC18. At this time, the TEST1 (pin 99) pin should be fixed at "L". VCC18 GND VCC18 x 10% VCC18 x 10% 100ms(min) VCC18 1ms(max) (2) When the power-on time of the VCC18 is more than 1 msec: Some circuits of internal FIFO should be initialized by the TEST1 (pin 99) pin. Input a initialize reset pulse of 200 ns or more after the power supplies (VCCIO, VCC18) reach to the VCC level. There is no problem even if reaching to the VCC level on which power supply. VCC18 GND VCC18 TEST1 VCCIO 1ms or more 200ns(min) 200ns(min) VCCIO GND 3.0V~3.6V VCCIO 3.0V~3.6V 1.62V~1.98V GND Note : Some circuits of internal FIFO can be initialized by the TEST1 pin even if the power-on time of the VCC18 is 1 msec or less. Note : Important matter; Provide write reset cycles and read reset cycles of 100 cycles or more, respectively after the VCC reaches to the specified voltage after power-on. When inputting a reset pulse using the TEST1 (pin 99) pin, provide write reset cycles and read reset cycles of 100 cycles or more, respectively after inputting a reset pulse at power-on. There is no problem in this reset operation if a total of 100 cycles or more is achieved, even if discontinuous reset input is made. |
Similar Part No. - M66287FP |
|
Similar Description - M66287FP |
|
|
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 |