1/10 august 2001 n high speed: t pd = 20 ns (typ.) at v cc = 6v n low power dissipation: i cc = 4 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 4514 description the m74hc4514 is an high speed cmos 4 line to 16 line segment decoder with latched inputs fabricated with silicon gate c 2 mos technology. a binary code stored in the four input latches (a to d) provides a high level at the selected one of sixteen outputs excluding the other fifteen outputs, when the inhibit input (inhibit ) is held low. when the inhibit input (inhibit ) is held high, all outputs are kept low level, while the latch function is available. the data applied to the data inputs are transferred to the q outputs of latches when the strobe input is held high. when the strobe input is taken low, the information data applied to the data input at a time is retained at the output of the latches. all inputs are equipped with protection circuits against static discharge and transient excess voltage. m74hc4514 4 to 16 line decoder/latch pin connection and iec logic symbols order codes package tube t & r dip m74hc4514b1r sop M74HC4514M1R m74hc4514rm13tr tssop m74hc4514ttr tssop dip sop
m74hc4514 2/10 input and output equivalent circuit pin description truth table x : dont care pin no symbol name and function 1 strobe strobe input 2, 3, 21, 22 a to d address inputs 11, 9, 10, 8, 7, 6, 5, 4, 18, 17, 20, 19, 14, 13, 16, 15 s0 to s15 multiplexer outputs (active high) 23 inhibit enable input 12 gnd ground (0v) 24 v cc positive supply voltage inputs strobe select output inhibit abcd l l l l l strobe = "h" refer to truth table strobe = "l" data at the negative going transition of strobe shall be provided on the each output while strobe is held low. s0 l hlll s1 llhll s2 lhhll s3 lllhl s4 lhlhl s5 llhhl s6 lhhhl s7 llllh s8 lhllh s9 l l h l h s10 lhhlh s11 l l l h h s12 l h l h h s13 l lhhh s14 l hhhh s15 h x x x x all outputs "l"
m74hc4514 3/10 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
m74hc4514 4/10 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 0.37 0.40 6.0 i o =5.2 ma 0.18 0.26 0.37 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 44080 m a
m74hc4514 5/10 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 8151925 6.0 7131623 t plh t phl propagation delay time (data - sn) 2.0 65 175 220 230 ns 4.5 22 35 44 56 6.0 19 30 37 45 t plh t phl propagation delay time (strobe- sn.) 2.0 75 175 220 260 ns 4.5 24 35 44 56 6.0 20 30 37 45 t plh t phl propagation delay time (inhibit - sn) 2.0 60 175 220 260 ns 4.5 20 35 44 56 6.0 17 30 37 45 t w(l) minimum pulse width (strobe) 2.0 14 75 95 110 ns 4.5 6151926 6.0 6131623 t s minimum set up time (data) 2.0 10 50 65 80 ns 4.5 2101320 6.0 1 9 11 17 t h minimum hold time (data) 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 5101010pf c pd power dissipation capacitance (note 1) 61 pf
m74hc4514 6/10 test circuit c l = 50pf or equivalent (includes jig and probe capacitance) r t = z out of pulse generator (typically 50 w ) switching characteristics test waveform (f=1mhz; 50% duty cycle)
m74hc4514 7/10 dim. mm. inch min. typ max. min. typ. max. a1 0.63 0.025 b 0.45 0.018 b1 0.23 0.31 0.009 0.012 b2 1.27 0.500 d 32.2 1.268 e 15.2 16.68 0.598 0.657 e 2.54 0.100 e3 27.94 1.100 f 14.1 0.555 i 4.445 0.175 l 3.3 0.130 plastic dip-24 (0.25) mechanical data p043a
m74hc4514 8/10 dim. mm. inch min. typ max. min. typ. max. a 2.65 0.104 a1 0.1 0.2 0.004 0.008 a2 2.45 0.096 b 0.35 0.49 0.014 0.019 b1 0.23 0.32 0.009 0.012 c 0.5 0.020 c1 45 (typ.) d 15.20 15.60 0.598 0.614 e 10.00 10.65 0.393 0.419 e 1.27 0.050 e3 13.97 0.550 f 7.40 7.60 0.291 0.300 l 0.50 1.27 0.020 0.050 s8 (max.) so-24 mechanical data po13t f c l e a1 b1 a e d e3 b 24 13 112 c1 s a2
m74hc4514 9/10 dim. mm. inch min. typ max. min. typ. max. a 1.1 0.043 a1 0.05 0.15 0.002 0.006 a2 0.9 0.035 b 0.19 0.30 0.0075 0.0118 c 0.09 0.20 0.0035 0.0079 d 7.7 7.9 0.303 0.311 e 6.25 6.5 0.246 0.256 e1 4.3 4.5 0.169 0.177 e 0.65 bsc 0.0256 bsc k0 80 8 l 0.50 0.70 0.020 0.028 tssop24 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 7047476a
m74hc4514 10/10 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
|
