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54ABT543 Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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54ABT543 Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 8 page DC Electrical Characteristics (Continued) Symbol Parameter ABT543 Units V CC Conditions Min Typ Max I CCT Additional I CC/Input 2.5 mA Max V I =VCC − 2.1V All Others at V CC or GND I CCD Dynamic I CC No Load Outputs Open, CEAB (Note 3) 0.18 mA/MHz Max and OEAB = GND,CEBA = V CC, One Bit Toggling, 50% Duty Cycle, (Note 4) Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied. Note 2: Either voltage limit or current limit is sufficient to protect inputs. Note 3: Guaranteed but not tested. Note 4: For 8-bit toggling. ICCD < 1.4 mA/MHz. DC Electrical Characteristics Conditions Symbol Parameter Min Max Units V CC C L = 50 pF, R L = 500 Ω V OLP Quiet Output Maximum Dynamic V OL 1.1 V 5.0 T A = 25˚C (Note 5) V OLV Quiet Output Minimum Dynamic V OL -0.45 V 5.0 T A = 25˚C(Note 5) Note 5: Max number of outputs defined as (n).n−1 data inputs are driven 0V to 3V. One output at LOW. AC Electrical Characteristics 54ABT T A = −55˚C to +125˚C Fig. Symbol Parameter V CC = 4.5V–5.5V Units No. C L =50 pF Min Max t PLH Propagation Delay 1.6 6.4 ns Figure 4 t PHL A n to Bn or Bn to An 1.6 6.2 t PLH Propagation Delay t PHL LEAB to B n, LEBA to An 1.6 6.6 ns Figure 4 OEBA or OEAB to A n or B n 1.6 6.4 t PZH Enable Time t PZL LEAB to B n, LEBA to An 1.3 6.4 ns Figure 6 OEBA or OEAB to A n or B n 1.8 7.4 t PHZ Disable Time 2.0 7.2 ns Figure 6 t PLZ CEBA or CEAB to A n or B n 1.5 7.0 www.national.com 4 |
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