Electronic Components Datasheet Search |
|
STK10C48-SF45 Datasheet(PDF) 9 Page - Simtek Corporation |
|
STK10C48-SF45 Datasheet(HTML) 9 Page - Simtek Corporation |
9 / 12 page STK10C48 March 2006 9 Document Control # ML0002 rev 0.2 If the STK10C48 is in a WRITE state at the end of power-up RECALL, the SRAM data will be corrupted. To help avoid this situation, a 10K Ohm resistor should be connected either between W and system V CC or between E and system VCC. HARDWARE PROTECT The STK10C48 offers two levels of protection to suppress inadvertent STORE cycles. If the control signals (E, G, W and NE) remain in the STORE con- dition at the end of a STORE cycle, a second STORE cycle will not be started. The STORE (or RECALL) will be initiated only after a transition on any one of these signals to the required state. In addition to multi-trigger protection, STOREs are inhibited when V CC is below 4.0V, protecting against inadvertent STORE s. LOW AVERAGE ACTIVE POWER The STK10C48 draws significantly less current when it is cycled at times longer than 55ns. Figure 2 shows the relationship between I CC and READ cycle time. Worst-case current consumption is shown for both CMOS and TTL input levels (commercial tem- perature range, V CC = 5.5V, 100% duty cycle on chip enable). Figure 3 shows the same relationship for WRITE cycles. If the chip enable duty cycle is less than 100%, only standby current is drawn when the chip is disabled. The overall average current drawn by the STK10C48 depends on the following items: 1) CMOS vs. TTL input levels; 2) the duty cycle of chip enable; 3) the overall cycle rate for accesses; 4) the ratio of READs to WRITEs; 5) the operating temperature; 6) the V CC level; and 7) I/O loading. Figure 2: I CC (max) Reads 0 20 40 60 80 100 50 100 150 200 Cycle Time (ns) TTL CMOS Figure 3: I CC (max) Writes 0 20 40 60 80 100 50 100 150 200 Cycle Time (ns) TTL CMOS |
Similar Part No. - STK10C48-SF45 |
|
Similar Description - STK10C48-SF45 |
|
|
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 |