? 2000 fairchild semiconductor corporation ds006106 www.fairchildsemi.com september 1986 revised march 2000 dm74AS08 quad 2-input and gate dm74AS08 quad 2-input and gate general description this device contains four independent gates, each of which performs the logic and function. features n switching specifications at 50 pf n switching specifications guaranteed over full temperature and v cc range n advanced oxide-isolated, ion-implanted schottky ttl process n functionally and pin for pin compatible with schottky, low power schottky, and advanced low power schottky ttl counterpart n improved ac performance over schottky, low power schottky and advanced low power schottky counterparts ordering code: devices also available in tape and reel. specify by appending the suffix letter x to the ordering code. connection diagram function table y = ab h = high logic level l = low logic level order number package number package description dm74AS08m m14a 14-lead small outline integrated circuit (soic), jedec ms-012, 0.150 narrow dm74AS08n n14a 14-lead plastic dual-in-line package (pdip), jedec ms-001, 0.300 wide inputs output aby lll lhl hll hhh
www.fairchildsemi.com 2 dm74AS08 absolute maximum ratings (note 1) note 1: the absolute maximum ratings are those values beyond which the safety of the device cannot be guaranteed. the device should not be operated at these limits. the parametric values defined in the electrical characteristics tables are not guaranteed at the absolute maximum ratings. the recommended operating conditions table will define the conditions for actual device operation. recommended operating conditions electrical characteristics over recommended operating free air temperature range. all typical values are measured at v cc = 5v, t a = 25 c. switching characteristics over recommended operating free air temperature range supply voltage 7v input voltage 7v operating free air temperature range 0 c to + 70 c storage temperature range - 65 c to + 150 c typical q ja n package 84.0 c/w m package 114.0 c/w symbol parameter min nom max units v cc supply voltage 4.5 5 5.5 v v ih high level input voltage 2 v v il low level input voltage 0.8 v i oh high level output current - 2ma i ol low level output current 20 ma t a free air operating temperature 0 70 c symbol parameter conditions min typ max units v ik input clamp voltage v cc = 4.5v, i i = - 18 ma - 1.2 v v oh high level i oh = - 2 ma v cc - 2v output voltage v cc = 4.5v to 5.5v v ol low level v cc = 4.5v 0.35 0.5 v output voltage i ol = 20 ma i i input current at max input voltage v cc = 5.5v, v ih = 7v 0.1 ma i ih high level input current v cc = 5.5v, v ih = 2.7v 20 m a i il low level input current v cc = 5.5v, v il = 0.4v - 0.5 ma i o output drive current v cc = 5.5v, v o = 2.25v - 30 - 112 ma i cc supply current v cc = 5.5v outputs high 5.8 9.3 ma outputs low 14.9 24 ma symbol parameter conditions min max units t plh propagation delay time v cc = 4.5v to 5.5v 15.5ns low-to-high level output r l = 500 w t phl propagation delay time c l = 50 pf 15.5ns high-to-low level output
3 www.fairchildsemi.com dm74AS08 physical dimensions inches (millimeters) unless otherwise noted 14-lead small outline integrated circuit (soic), jedec ms-012, 0.150 narrow package number m14a
www.fairchildsemi.com 4 dm74AS08 quad 2-input and gate physical dimensions inches (millimeters) unless otherwise noted (continued) 14-lead plastic dual-in-line package (pdip), jedec ms-001, 0.300 wide package number n14a fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and fairchild reserves the right at any time without notice to change said circuitry and specifications. life support policy fairchilds products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the user. 2. a critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
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