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74HC299D Datasheet(PDF) 10 Page - NXP Semiconductors |
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74HC299D Datasheet(HTML) 10 Page - NXP Semiconductors |
10 / 24 page 74HC_HCT299_3 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 03 — 28 July 2008 10 of 24 NXP Semiconductors 74HC299; 74HCT299 8-bit universal shift register; 3-state ∑(CL × VCC2 × fo) = sum of outputs. CL = output load capacitance in pF; VCC = supply voltage in V; VI = GND to VCC for 74HC299; VI = GND to (VCC − 1.5 V) for 74HCT299. 10. Dynamic characteristics Table 7. Dynamic characteristics GND (ground = 0 V); for test circuit, see Figure 11. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ Max Min Max Min Max 74HC299 tpd propagation delay CP to Q0, Q7; see Figure 7 [1] VCC = 2.0 V - 66 200 - 250 - 300 ns VCC = 4.5 V - 24 40 - 50 - 60 ns VCC = 5.0 V; CL = 15 pF - 20 - ---- ns VCC = 6.0 V - 19 34 - 43 - 51 ns CP to I/On; see Figure 7 VCC = 2.0 V - 66 200 - 250 - 300 ns VCC = 4.5 V - 24 40 - 50 - 60 ns VCC = 5.0 V; CL = 15 pF - 20 - ---- ns VCC = 6.0 V - 19 34 - 43 - 51 ns MR to Q0, Q7 or I/On; see Figure 8 [2] VCC = 2.0 V - 66 200 - 250 - 300 ns VCC = 4.5 V - 24 40 - 50 - 60 ns VCC = 5.0 V; CL = 15 pF - 20 - ---- ns VCC = 6.0 V - 19 34 - 43 - 51 ns tt transition time bus driver (I/On); see Figure 7 [3] VCC = 2.0 V - 14 60 - 75 - 90 ns VCC = 4.5 V - 5 12 - 15 - 18 ns VCC = 6.0 V - 4 10 - 13 - 15 ns standard (Q0, Q7); see Figure 7 VCC = 2.0 V - 19 75 - 95 - 110 ns VCC = 4.5 V - 7 15 - 19 - 22 ns VCC = 6.0 V - 6 13 - 16 - 19 ns |
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