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74HC40103PW 데이터시트(PDF) 2 Page - NXP Semiconductors |
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74HC40103PW 데이터시트(HTML) 2 Page - NXP Semiconductors |
2 / 25 page 9397 750 13812 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Product data sheet Rev. 03 — 12 November 2004 2 of 25 Philips Semiconductors 74HC40103 8-bit synchronous binary down counter 2. Features s Cascadable s Synchronous or asynchronous preset s Low-power dissipation s Complies with JEDEC standard no. 7A s ESD protection: x HBM EIA/JESD22-A114-B exceeds 2000 V x MM EIA/JESD22-A115-A exceeds 200 V. s Multiple package options s Specified from −40 °Cto+80 °C and from −40 °C to +125 °C. 3. Applications s Divide-by-n counters s Programmable timers s Interrupt timers s Cycle/program counters. 4. Quick reference data [1] CPD is used to determine the dynamic power dissipation (PD in µW). PD =CPD × VCC2 × fi × N+ ∑(CL × VCC2 × fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; ∑(C L × VCC 2 × f o) = sum of outputs. Table 1: Quick reference data GND = 0 V; Tamb =25 °C; tr =tf = 6 ns. Symbol Parameter Conditions Min Typ Max Unit tPHL, tPLH propagation delay CP to TC CL = 15 pF; VCC = 5 V -30 - ns fmax maximum clock frequency CL = 15 pF; VCC = 5 V - 32 - MHz CI input capacitance - 3.5 - pF CPD power dissipation capacitance VI = GND to VCC [1] -24 - pF |
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