 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
UPSD3422 Datasheet(PDF) 270 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
UPSD3422 Datasheet(HTML) 270 Page - STMicroelectronics |
|
|
270 / 293 page  DC and AC parameters uPSD34xx 270/293 Figure 100. External WRITE cycle (80-pin device only) Table 161. External WRITE cycle AC characteristics (3V or 5V device) 64 5 4 3 75 6 5 4 Symbol Parameter 40MHz Oscillator(1) Variable Oscillator 1/tCLCL = 3 to 40MHz Unit Min Max Min Max tLHLL ALE pulse width 17 tCLCL – 8 ns tAVLL Address Setup to ALE 13 tCLCL – 12 ns tLLAX Address hold after ALE 7.5 0.5tCLCL – 5 ns tWLWH WR pulse width(2) 40 xtCLCL – 10 ns tLLWL ALE to WR 7.5 0.5tCLCL – 5 ns tAVWL Address (A0-A7) valid to WR(3) 32.5 1.5tCLCL – 5 ns tWHLH WR High to ALE High 9.5 9.5 0.5tCLCL – 3 0.5tCLCL + 2 ns tQVWH Data setup before WR(y) 20 ytCLCL – 5 ns tWHQX Data hold after WR 9.5 14.5 0.5tCLCL – 3 0.5tCLCL + 2 ns tAVQV Address valid to Latched Address out on Ports A and B 35.5 (3V) 1.5tCLCL – 2 ns 28 (5V) tCLCL – 9.5 ns # of PFQCLK in BUSCON Reg. READ Cycle WRITE Cycle nm x y LATCHED MCU A8 - A15 MCU AD0 - AD7 ALE WR RD A8-A15 A8-A15 tLLWL tWLWH tAVLL tLHLL tQVWH DATA OUT A0-A7 DATA IN A0-A7 tLLAX tAVWL tAVQV tWHQX tWHLH AI10472 |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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 |
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
