54AC 74AC125 74ACT125 Quad Buffer with TRI-STATE Outputs
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1 54AC 74AC125 74AC125 Quad Buffer with RI-SAE Outputs General Description he AC AC125 contai four independent non-inverting buffers with RI-SAE outputs Logic Symbol Pin Names A n B n O n Inputs IEEE IEC L F Description Inputs Outputs Function able Output A n B n O n L L L L H H H X Z Features Pin Assignment for DIP SOIC and Flatpak H e HIGH Voltage Level L e LOW Voltage Level Z e HIGH Impedance X e Immaterial Y ICC reduced by 50% Y Outputs source sink 24 ma Y AC125 has L-compatible outputs Connection Diagrams L F Pin Assignment for LCC March 1993 L F AC 74AC125 74AC125 Quad Buffer with RI-SAE Outputs RI-SAE is a registered trademark of National Semiconductor Corporation FACM is a trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation L F RRD-B30M75 Printed in U S A
2 Absolute Maximum Ratings (Note 1) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specificatio Supply Voltage ( ) b0 5V to a7 0V DC Input Diode Current (I K ) V I eb0 5V b20 ma V I e a 0 5V a20 ma DC Input Voltage (V I ) b0 5V to a 0 5V DC Output Diode Current (I OK ) V O eb0 5V b20 ma V O e a 0 5V a20 ma DC Output Voltage (V O ) b0 5V to a 0 5V DC Output Source or Sink Current (I O ) g50 ma DC or Ground Current per Output Pin (I CC or I GND ) g50 ma Storage emperature ( SG ) b65 Ctoa150 C Junction emperature ( J ) CDIP 175 C PDIP 140 C Note 1 Absolute maximum ratings are those values beyond which damage to the device may occur he databook specificatio should be met without exception to eure that the system design is reliable over its power supply temperature and output input loading variables National does not recommend operation of FACM circuits outside databook specificatio DC Characteristics for AC Family Devices Symbol Parameter Recommended Operating Conditio Supply Voltage ( ) AC AC Input Voltage (V I ) Output Voltage (V O ) Operating emperature ( A ) 74AC AC 54AC AC Minimum Input Edge Rate (DV Dt) AC Devices V IN from 30% to 70% of 3 3V 4 5V 5 5V Minimum Input Edge Rate (DV Dt) AC Devices V IN from 0 8V to 2 0V 4 5V 5 5V 74AC 54AC 74AC A ea25 C A e A e (V) b55 Ctoa125 C b40 Ctoa85 C yp Guaranteed Limits Units 2 0V to 6 0V 4 5V to 5 5V 0Vto 0Vto b40 Ctoa85 C b55 Ctoa125 C 125 mv 125 mv Conditio V IH Minimum High Level V OU e 0 1V Input Voltage V or b 0 1V V IL Maximum Low Level V OU e 0 1V Input Voltage V or b 0 1V V OH Minimum High Level I OU eb50 ma Output Voltage V V IN e V IL or V IH b12 ma V I OH b24 ma b24 ma V OL Maximum Low Level I OU e 50 ma Output Voltage V V IN e V IL or V IH ma V I OL 24 ma ma I IN Maximum Input Leakage Current 5 5 g0 1 g1 0 g1 0 ma V I e GND All outputs loaded thresholds on input associated with output under test 2
3 DC Characteristics for AC Family Devices (Continued) 74AC 54AC 74AC Symbol Parameter A ea25 C A e A e (V) b55 Ctoa125 C b40 Ctoa85 C Units Conditio yp Guaranteed Limits I OZ Maximum RI-SAE V I (OE) e V IL V IH Current 5 5 g0 5 g10 0 g5 0 ma V I e V GND V O e GND I OLD Minimum Dynamic ma V OLD e 1 65V Max I OHD Output Current 5 5 b50 b75 ma V OHD e 3 85V Min I CC Maximum Quiescent Supply Current ma Maximum test duration 2 0 ms one output loaded at a time Note I IN and I CC 3 0V are guaranteed to be less than or equal to the respective limit 5 5V I CC for 54AC 25 C is identical to 74AC 25 C DC Characteristics for AC Family Devices V IN e or GND 74AC 74AC Symbol Parameter A ea25 C A e (V) b40 Ctoa85 C Units Conditio yp Guaranteed Limits V IH Minimum High Level V V OU e 0 1V Input Voltage or b 0 1V V IL Maximum Low Level V V OU e 0 1V Input Voltage or b 0 1V V OH Minimum High Level Output Voltage V I OU eb50 ma V IN e V IL or V IH b24 ma V I OH b24 ma V OL Maximum Low Level Output Voltage V I OU e 50 ma V IN e V IL or V IH ma V I OL 24 ma I IN Maximum Input Leakage Current 5 5 g0 1 g1 0 ma V I e GND I OZ Maximum RI-SAE Current 5 5 g0 5 g5 0 ma V I e V IL V IH V O e GND I CC Maximum I CC Input ma V I e b 2 1V I OLD Minimum Dynamic ma V OLD e 1 65V Max I OHD Output Current 5 5 b75 ma V OHD e 3 85V Min I CC Maximum Quiescent Supply Current All outputs loaded thresholds on input associated with output under test Maximum test duration 2 0 ms one output loaded at a time May be measured per the JEDEC Alternate Method ma V IN e or GND 3
4 AC Electrical Characteristics 74AC 54AC 74AC A ea25 C A eb55 C A eb40 C Symbol Parameter to a125 C to a85 C Units (V) C L e 50 pf C L e 50 pf C L e 50 pf Min yp Max Min Max Min Max t PLH Propagation Delay Data to Output t PHL Propagation Delay Data to Output t PZH Output Enable ime t PZL Output Enable ime t PHZ Output Disable ime t PLZ Output Disable ime Voltage Range 3 3 is 3 3V g0 3V Voltage Range 5 0 is 5 0V g0 5V AC Electrical Characteristics 74AC 74AC Symbol Parameter A ea25 C A eb40 C to a85 C (V) C L e 50 pf C L e 50 pf Units Min yp Max Min Max t PLH Propagation Delay Data to Output t PHL Propagation Delay Data to Output t PZH Output Enable ime t PZL Output Enable ime t PHZ Output Disable ime t PLZ Output Disable ime Voltage Range 5 0 is 5 0V g0 5V Capacitance Symbol Parameter AC AC Units Conditio yp C IN Input Capacitance 4 5 pf e OPEN C PD Power Dissipation Capacitance 45 0 pf e 5 0V 4
5 Ordering Information he device number is used to form part of a simplified purchasing code where the package type and temperature range are defined as follows 74AC 125 P C QR emperature Range Family Special Variatio 74AC e Commercial X e Devices shipped in 13 reels 54AC e Military QR e Commercial grade device 74AC e Commercial L-Compatible with burn-in Device ype QB e Military grade device with environmental and burn-in Package Code processing shipped in tubes P e Plastic DIP emperature Range D e Ceramic DIP C e Commercial (b40 Ctoa85 C) F e Flatpak M e Military (b55 Ctoa125 C) L e Leadless Ceramic Chip Carrier (LCC) S e Small Outline (SOIC) 5
6 Physical Dimeio inches (millimeters) 20 erminal Ceramic Leadless Chip Carrier (L) NS Package Number E20A 14-Lead Ceramic Dual-In-Line Package (D) NS Package Number J14A 6
7 Physical Dimeio inches (millimeters) (Continued) 14-Lead Small Outline Integrated Circuit (S) NS Package Number M14A 14-Lead Plastic Dual-In-Line Package (P) NS Package Number N14A 7
8 54AC 74AC125 74AC125 Quad Buffer with RI-SAE Outputs Physical Dimeio inches (millimeters) (Continued) 14-Lead Ceramic Flatpak (F) NS Package Number W14B LIFE SUPPOR POLICY NAIONAL S PRODUCS ARE NO AUHORIZED FOR USE AS CRIICAL COMPONENS IN LIFE SUPPOR DEVICES OR SYSEMS WIHOU HE EXPRESS WRIEN APPROVAL OF HE PRESIDEN OF NAIONAL SEMICONDUCOR CORPORAION As used herein 1 Life support devices or systems are devices or 2 A critical component is any component of a life systems which (a) are intended for surgical implant support device or system whose failure to perform can into the body or (b) support or sustain life and whose be reasonably expected to cause the failure of the life failure to perform when properly used in accordance support device or system or to affect its safety or with itructio for use provided in the labeling can effectiveness be reasonably expected to result in a significant injury to the user National Semiconductor National Semiconductor National Semiconductor National Semiconductor National Semiconductores National Semiconductor Corporation GmbH Japan Ltd Hong Kong Ltd Do Brazil Ltda (Australia) Pty Ltd 2900 Semiconductor Drive Livry-Gargan-Str 10 Sumitomo Chemical 13th Floor Straight Block Rue Deputado Lacorda Franco Building 16 P O Box D F4urstenfeldbruck Engineering Center Ocean Centre 5 Canton Rd 120-3A Business Park Drive Santa Clara CA Germany Bldg 7F simshatsui Kowloon Sao Paulo-SP Monash Business Park el 1(800) el (81-41) Nakase Mihama-Ku Hong Kong Brazil Nottinghill Melbourne WX (910) elex Chiba-City el (852) el (55-11) Victoria 3168 Australia Fax (81-41) 35-1 Ciba Prefecture 261 Fax (852) elex NSBR BR el (3) el (043) Fax (55-11) Fax (3) Fax (043) National does not assume any respoibility for use of any circuitry described no circuit patent licees are implied and National reserves the right at any time without notice to change said circuitry and specificatio
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