View M74HC137B1R_4592254.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

1/11 august 2001 n high speed: t pd =18ns (typ.) at v cc = 6v n low power dissipation: i cc = 2 m a(max.) at t a =25c n high noise immunity: v nih = v nil = 28 % v cc (min.) n symmetrical output impedance: |i oh | = i ol = 4ma (min) n balanced propagation delays: t plh @ t phl n wide operating voltage range: v cc (opr) = 2v to 6v n pin and function compatible with 74 series 137 description the m74hc137 is an high speed cmos 3 to 8 line decoder/latch (inverting) fabricated with silicon gate c 2 mos technology. this device is a 3 to 8 line decoder with latches on the three address inputs. when gl goes from low to high, the addresses present at the select inputs (a, b, and c) is stored in the latches. as long as gl remains high no address changes will be recognized. output enable pins g1 and g2 , control the state of the outputs independently of the select or latch-enable inputs. all the outputs are high unless g1 is high and g2 is low. the 74hc137 is ideally suited for the implementation of glitch-free decoders in stored-address application in bus oriented systems. all inputs are equipped with protection circuits against static discharge and transient excess voltage. m74hc137 3 to 8 line decoder/latch (inverting) pin connection and iec logic symbols order codes package tube t & r dip M74HC137B1R sop m74hc137m1r m74hc137rm13tr tssop m74hc137ttr tssop dip sop
m74hc137 2/11 input and output equivalent circuit pin description truth table pin no symbol name and function 1, 2, 3 a to c data inputs 4gl latch enable input (active low) 5g2 data enable input(active low) 6 g1 data enable input (active high) 9, 10, 11, 12, 13, 14, 15, 7 y0 to y7 multiplexer outputs 8 gnd ground (0v) 16 v cc positive supply voltage inputs outputs enable select gl g1 g2 cbay0 y1 y2 y3 y4 y5 y6 y7 xxhxxxhhhhhhhh xlxxxx hhhhhhhh lhlllll hhhhhhh lhl l lhhlhhhhhh lhllhlhhlhhhhh lhl lhhhhhlhhhh lhlhll hhhhl hhh lhlhl hhhhhh lhh lhlhhl hhhhhhlh lhlhhhhhhhhhhl h h l x x x outputs corresponding to stored address l: all others h
m74hc137 3/11 logic diagram this logic diagram has not be used to estimate propagation delays absolute maximum ratings absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditi ons is not implied (*) 500mw at 65 c; derate to 300mw by 10mw/ c from 65 c to 85 c symbol parameter value unit v cc supply voltage -0.5 to +7 v v i dc input voltage -0.5 to v cc + 0.5 v v o dc output voltage -0.5 to v cc + 0.5 v i ik dc input diode current 20 ma i ok dc output diode current 20 ma i o dc output current 25 ma i cc or i gnd dc v cc or ground current 50 ma p d power dissipation 500(*) mw t stg storage temperature -65 to +150 c t l lead temperature (10 sec) 300 c
m74hc137 4/11 recommended operating conditions dc specifications symbol parameter value unit v cc supply voltage 2 to 6 v v i input voltage 0 to v cc v v o output voltage 0 to v cc v t op operating temperature -55 to 125 c t r , t f input rise and fall time v cc = 2.0v 0 to 1000 ns v cc = 4.5v 0 to 500 ns v cc = 6.0v 0 to 400 ns symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. v ih high level input voltage 2.0 1.5 1.5 1.5 v 4.5 3.15 3.15 3.15 6.0 4.2 4.2 4.2 v il low level input voltage 2.0 0.5 0.5 0.5 v 4.5 1.35 1.35 1.35 6.0 1.8 1.8 1.8 v oh high level output voltage 2.0 i o =-20 m a 1.9 2.0 1.9 1.9 v 4.5 i o =-20 m a 4.4 4.5 4.4 4.4 6.0 i o =-20 m a 5.9 6.0 5.9 5.9 4.5 i o =-4.0 ma 4.18 4.31 4.13 4.10 6.0 i o =-5.2 ma 5.68 5.8 5.63 5.60 v ol low level output voltage 2.0 i o =20 m a 0.0 0.1 0.1 0.1 v 4.5 i o =20 m a 0.0 0.1 0.1 0.1 6.0 i o =20 m a 0.0 0.1 0.1 0.1 4.5 i o =4.0 ma 0.17 0.26 0.33 0.40 6.0 i o =5.2 ma 0.18 0.26 0.33 0.40 i i input leakage current 6.0 v i = v cc or gnd 0.1 1 1 m a i cc quiescent supply current 6.0 v i = v cc or gnd 22040 m a
m74hc137 5/11 ac electrical characteristics (c l = 50 pf, input t r = t f = 6ns) capacitive characteristics 1) c pd is defined as the value of the ics internal equivalent capacitance which is calculated from the operating current consumption without load. (refer to test circuit). average operating current can be obtained by the following equation. i cc(opr) = c pd x v cc x f in + i cc symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. t tlh t thl output transition time 2.0 30 75 95 110 ns 4.5 8151922 6.0 7131619 t plh t phl propagation delay time (g1 - yn ) 2.0 45 115 145 175 ns 4.5 14 23 29 35 6.0 12 20 25 30 t plh t phl propagation delay time (g2 - yn ) 2.0 50 115 145 175 ns 4.5 15 23 29 35 6.0 13 20 25 30 t plh t phl propagation delay time (gl - yn ) 2.0 70 170 215 250 ns 4.5 22 34 43 50 6.0 19 29 37 43 t plh t phl propagation delay time (a, b, c - y ) 2.0 70 165 205 110 ns 4.5 21 33 41 22 6.0 18 28 35 19 t w(h) t w(l) minimum pulse width (gl ) 2.0 12 50 65 75 ns 4.5 3101315 6.0 3 9 11 13 t s minimum set-up time (a, b, c - gl ) 2.0 8506075 ns 4.5 2101215 6.0 2 9 10 13 t h minimum hold time (a, b, c - gl ) 2.0 5 5 5 ns 4.5 5 5 5 6.0 5 5 5 symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. c in input capacitance 5.0 5101010pf c pd power dissipation capacitance (note 1) 5.0 55 pf
m74hc137 6/11 test circuit c l = 50pf or equivalent (includes jig and probe capacitance) r t = z out of pulse generator (typically 50 w ) waveform 1 : propagation delay time (f=1mhz; 50% duty cycle)
m74hc137 7/11 waveform 2 : minimum pulse width, setup and hold time (f=1mhz; 50% duty cycle)
m74hc137 8/11 dim. mm. inch min. typ max. min. typ. max. a1 0.51 0.020 b 0.77 1.65 0.030 0.065 b 0.5 0.020 b1 0.25 0.010 d 20 0.787 e 8.5 0.335 e 2.54 0.100 e3 17.78 0.700 f 7.1 0.280 i 5.1 0.201 l 3.3 0.130 z 1.27 0.050 plastic dip-16 (0.25) mechanical data p001c
m74hc137 9/11 dim. mm. inch min. typ max. min. typ. max. a 1.75 0.068 a1 0.1 0.2 0.003 0.007 a2 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 c 0.5 0.019 c1 45 (typ.) d 9.8 10 0.385 0.393 e 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 8.89 0.350 f 3.8 4.0 0.149 0.157 g 4.6 5.3 0.181 0.208 l 0.5 1.27 0.019 0.050 m 0.62 0.024 s8 (max.) so-16 mechanical data po13h
m74hc137 10/11 dim. mm. inch min. typ max. min. typ. max. a 1.2 0.047 a1 0.05 0.15 0.002 0.004 0.006 a2 0.8 1 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 d 4.9 5 5.1 0.193 0.197 0.201 e 6.2 6.4 6.6 0.244 0.252 0.260 e1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 bsc 0.0256 bsc k0 80 8 l 0.45 0.60 0.75 0.018 0.024 0.030 tssop16 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 0080338d
m74hc137 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result f rom its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specificati ons mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2001 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - china - finland - france - germany - hong kong - india - italy - japan - malaysia - malta - morocco singapore - spain - sweden - switzerland - united kingdom ? http://www.st.com 11/11

▲Up To Search▲

Price & Availability of M74HC137B1R

	To Download M74HC137B1R Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .