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LS7030 Datasheet(PDF) 3 Page - LSI Computer Systems |
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LS7030 Datasheet(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 (Vss = +5V ± 5%) tcpw 66 - ns (Vss = +10V) tcpw 83 - ns (Vss = +15V) tcpw 100 - ns Count Ripple Time tcr - 12 µs Load Pulse Width tlpw 4 - µs Load Removal Tme 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) *Strobe Guard Band time tgb 200 - ns (100kHz ≤ fSC ≤ 250kHz) *Strobe Guard Band time tgb 200 - ns (250kHz ≤ fSC ≤ 500kHz) negative edge only FIGURE 2. GUARD BANDED STROBE BCD STROBE tgb tgb f b a g d e c FIGURE 3. SEVEN SEGMENT FONT TTL COMPATIBLE OUTPUTS: POWER SUPPLIES: Vss = +5V ± 5%, VDD = 0V, VGG = -12V ± 5% OUTPUT LEVELS: “1" Level ≥ Vss - 0.5V (sourcing 100µA) “0" Level ≤ 0.4V (sinking 1.6mA) “1" Level ≥ Vss - 0.5V (sourcing 40µA) “0" Level ≤ 0.4V (sinking 0.18mA) All other outputs as specified for single power supply, Vss = + 15V, operation. Inputs as specified for single power supply, Vss = +5V ± 5% operation. } } BLANK AND BCD DATA OUTPUTS OVERFLOW OUTPUT 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. 7030-012703-3 |
Número de pieza similar - LS7030_03 |
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Descripción similar - LS7030_03 |
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