Zakładka z wyszukiwarką danych komponentów |
|
LS7031 Arkusz danych(PDF) 3 Page - LSI Computer Systems |
|
LS7031 Arkusz danych(HTML) 3 Page - LSI Computer Systems |
3 / 4 page ELECTRICAL CHARACtERISTICS: (VDD = VGG = OV, Vss = +4.75 to +15V, -25˚C ≤ TA ≤ +70˚C unless otherwise specified.) PARAMETER SYMBOL MIN MAX UNITS Count Test and Count frequency (Vss = +5V ± 5%) fc, ftc DC 7.5 MHz (Vss = +10V) fc, ftc DC 6 MHz (Vss = +15V) fc, ftc DC 5 MHz Scan frequency fsc DC 500 kHz Count Pulse Width (Pulse applied to B4/D2 or B8/D2; ‘OR’ combination ofB4/D2 and B8/D2) (Vss = +5V ± 5%) tcpw 62 - ns (Vss = +10V) tcpw 83 - ns (Vss = +15V) tcpw 100 - ns **Propagation Delay (B4/D2(H-L) to B8/D2 (L-H) at Vss -1.0V) Count Ripple Time tcr Overlap 10 ns Load Pulse Width tlpw 4 - µs Load Removal Time tlr - 1 µs Reset Pulse Width trpw 4 - µs Reset Removal Time trr - 1 µs Rise and Fall Time Count Pulse trfc - 4 µs Reset Pulse trfr - 4 µs Test Count Pulse trftc - 80 µs *Strobe Guard Band time tgb 400 - ns (fSC ≤ 100kHz ≤ 250kHz) *Strobe Guard Band time tgb 200 - ns (100kHz ≤ fSC ≤ 250kHz) *Strobe Guard Band time tgb 200 - ns (250kHz ≤ fSC≤ 500kHz) negative edge only *Defines the minimum time from strobe edges to switching BCD data. BCD CNTR 1 1 2 4 8 PRESCALE DIGIT 1 B1/D1 - B8/D1 BCD CNTR 2 1 2 4 8 PRESCALE DIGIT 2 B1/D1 - B8/D1 LS7031 DIGIT STROBES 1 2 4 8 BLANK BCD TO SEVEN SEGMENT DECODER/DRIVER (LSD) (MSD) 750MHz 75MHz FIGURE 3. TYPICAL APPLICATION DIGIT DRIVERS 8 DIGIT DISPLAY 7.5MHz b c d e f g a 7031-110201-3 FIGURE 2. GUARD BANDED STROBE BCD tgb STROBE tgb **Propagation Delay and Pulse Width Vss - 1.0 Vss - 1.0 tcpw tpr B4/D2 B8/D2 B4/D2 or B8/D2 The information included herein is believed to be accurate and reliable. However, LSI Computer Systems, Inc. assumes no responsibilities for inaccuracies, nor for any infringements of patent rights of others which may result from its use. |
Podobny numer części - LS7031 |
|
Podobny opis - LS7031 |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów 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 |