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| BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS The SN54/74LS247 thru SN54/74LS249 are BCD-to-Seven-Segment Decoder/Drivers. The LS247 and LS248 are functionally and electrically identical to the LS47 and LS48 with the same pinout configuration. The LS249 is a 16-pin version of the 14-pin LS49 and includes full functional capability for lamp test and ripple blanking which was not available in the LS49. The composition of all characters, except the 6 and 9 are identical between the LS247, 248, 249 and the LS47, 48 and 49. The LS47 thru 49 compose the and without tails, the LS247 thru 249 compose the and with the tails. The LS247 has active-low outputs for direct drive of indicators. The LS248 and 249 have active-high outputs for driving lamp buffers. All types feature a lamp test input and have full ripple-blanking input/output controls. On all types an automatic leading and/or trailing-edge zero-blanking control (RBI and RBO) is incorporated and an overriding blanking input (BI) is contained which may be used to control the lamp intensity by pulsing or to inhibit the output's lamp test may be performed at any time when the BI/RBO node is at high level. Segment identification and resultant displays are shown below. Display pattern for BCD input counts above 9 are unique symbols to authenticate input conditions. LS247 SN54/74LS247 SN54/74LS248 SN54/74LS249 BCD-TO-SEVEN-SEGMENT DECODERS/ DRIVERS LOW POWER SCHOTTKY J SUFFIX CERAMIC CASE 620-09 16 1 16 1 N SUFFIX PLASTIC CASE 648-08 * Open-Collector Outputs Drive Indicators Directly * Lamp-Test Provision * Leading / Trailing Zero Suppression LS248 * Internal Pull-Ups Eliminate Need for External Resistors * Lamp-Test Provision * Leading / Trailing Zero Suppression LS249 * Open-Collector Outputs * Lamp-Test Provision * Leading / Trailing Zero Suppression 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION SN54LSXXXJ Ceramic SN74LSXXXN Plastic SN74LSXXXDW SOIC 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NUMERICAL DESIGNATIONS AND RESULTANT DISPLAYS a f e d g b c SEGMENT IDENTIFICATION FAST AND LS TTL DATA 5-402 SN54/74LS247 * SN54/74LS248 * SN54/74LS249 SN54 / 74LS248 SN54 / 74LS259 (TOP VIEW) OUTPUTS SN54 / 74LS247 (TOP VIEW) OUTPUTS VCC 16 f 15 g 14 a 13 b 12 c 11 d 10 e 9 VCC 16 f 15 g 14 a 13 b 12 c 11 d 10 e 9 f g a b BI/ c d e f g a b BI/ c d e B C LT RBORBI D A B C LT RBORBI D A 1 B 2 C 3 LAMP TEST 4 RB OUT PUT 5 RB IN PUT 6 D 7 A 8 GND 1 B 2 C 3 LAMP TEST 4 RB OUT PUT 5 RB IN PUT 6 D 7 A 8 GND INPUTS INPUTS INPUTS INPUTS ALL CIRCUIT TYPES FEATURE LAMP INTENSITY MODULATION CAPABILITY DRIVER OUTPUTS TYPE SN54LS247 SN54LS248 SN54LS249 SN74LS247 SN74LS248 SN74LS249 ACTIVE LEVEL low high high low high high OUTPUT CONFIGURATION open-collector 2.0 k pull-up open-collector open-collector 2.0 k pull-up open-collector SINK CURRENT 12 mA 2.0 mA 4.0 mA 24 mA 6.0 mA 8.0 mA MAX VOLTAGE 15 V 5.5 V 5.5 V 15 V 5.5 V 5.5 V TYPICAL POWER DISSIPATION 35 mW 125 mW 40 mW 35 mW 125 mW 40 mW LOGIC DIAGRAM LS247 (13) INPUT (7) A INPUT B (2) (1) (12) OUTPUT b LS248, LS249 OUTPUT a INPUT (7) A INPUT B (1) (13) OUTPUT a (12) OUTPUT b INPUT C (11) OUTPUT c INPUT C (2) (11) OUTPUT c INPUT (6) D (10) OUTPUT d INPUT (6) D (10) OUTPUT d BI/RBO BLANKING INPUT OR RIPPLE BLANKING OUTPUT (4) (9) OUTPUT e BLANKING INPUT OR RIPPLE BLANKING OUTPUT (4) (9) OUTPUT e (15) (3) OUTPUT f LAMP TEST (3) (15) OUTPUT f LAMP TEST INPUT RBI RIPPLE BLANKING INPUT (14) (5) OUTPUT g INPUT RIPPLE BLANKING INPUT (5) (14) OUTPUT g FAST AND LS TTL DATA 5-403 SN54/74LS247 * SN54/74LS248 * SN54/74LS249 LS247 FUNCTION TABLE DECIMAL OR FUNCTION 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 BI RBI LT INPUTS BI/RBO LT H H H H H H H H H H H H H H H H X H L RBI H X X X X X X X X X X X X X X X X L X D L L L L L L L L H H H H H H H H X L X C L L L L H H H H L L L L H H H H X L X B L L H H L L H H L L H H L L H H X L X A L H L H L H L H L H L H L H L H X L X H H H H H H H H H H H H H H H H L L H a ON OFF ON ON OFF ON ON ON ON ON OFF OFF OFF ON OFF OFF OFF OFF ON b ON ON ON ON ON OFF OFF ON ON ON OFF OFF ON OFF OFF OFF OFF OFF ON c ON ON OFF ON ON ON ON ON ON ON OFF ON OFF OFF OFF OFF OFF OFF ON d ON OFF ON ON OFF ON ON OFF ON ON ON ON OFF ON ON OFF OFF OFF ON e ON OFF ON OFF OFF OFF ON OFF ON OFF ON OFF OFF OFF ON OFF OFF OFF ON f ON OFF OFF OFF ON ON ON OFF ON ON OFF OFF ON ON ON OFF OFF OFF ON g OFF OFF ON ON ON ON ON OFF ON ON ON ON ON ON ON OFF OFF OFF ON 2 3 4 OUTPUTS NOTE 1 LS248, LS249 FUNCTION TABLE DECIMAL OR FUNCTION 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 BI RBI LT INPUTS BI/RBO LT H H H H H H H H H H H H H H H H X H L RBI H X X X X X X X X X X X X X X X X L X D L L L L L L L L H H H H H H H H X L X C L L L L H H H H L L L L H H H H X L X B L L H H L L H H L L H H L L H H X L X A L H L H L H L H L H L H L H L H X L X H H H H H H H H H H H H H H H H L L H a H L H H L H H H H H L L L H L L L L H b H H H H H L L H H H L L H L L L L L H c H H L H H H H H H H L H L L L L L L H d H L H H L H H L H H H H L H H L L L H e H L H L L L H L H L H L L L H L L L H f H L L L H H H L H H L L H H H L L L H g L L H H H H H L H H H H H H H L L L H 2 3 4 1 1 OUTPUTS NOTE 1 H = HIGH Level, L = LOW Level, X = Irrelevant NOTES: 1. The blanking input (BI) must be open or held at a high logic level when output functions 0 through 15 are desired. The ripple-blanking input (RBI) must NOTES: 1. be open or high if blanking of a decimal zero is not desired. 2. When a low logic level is applied directly to the blanking input (BI), all segment outputs are off regardless of the level of any other input. 3. When ripple-blanking input (RBI) and inputs A, B, C, and D are at a low level with the lamp test input high, all segment outputs go off and the NOTES: 1. ripple-blanking output (RBO) goes to a low level (response condition). 4. When the blanking input/ripple blanking output (BI/RBO) is open or held high and a low is applied to the lamp-test input, all segment outputs are on. BI/RBO is wire-AND logic serving as blanking input (BI) and/or ripple-blanking output (RBO). FAST AND LS TTL DATA 5-404 SN54/74LS247 GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL VO(off) IO(on) Supply Voltage Operating Ambient Temperature Range Output Current -- High BI / RBO Output Current -- Low BI / RBO Off-State Output Voltage a - g On-State Output Current a - g On-State Output Current a - g Parameter 54 74 54 74 54, 74 54 74 54, 74 54 74 Min 4.5 4.75 - 55 0 Typ 5.0 5.0 25 25 Max 5.5 5.25 125 70 - 50 1.6 3.2 15 12 24 Unit V C A mA V mA DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VOH Parameter Input HIGH Voltage 54 Input LOW Voltage 74 Input Clamp Diode Voltage Output HIGH Voltage BI / RBO Output LOW Voltage BI / RBO Off-State Output Current a-g On-State Output Voltage a-g Input HIGH Current 0.1 Input LOW Current Any Input, except BI/ RBO BI / RBO IOS ICC Short Circuit Current BI / RBO (Note 1) Power Supply Current - 0.3 7.0 - 0.4 - 1.2 - 2.0 13 mA mA VCC = MAX VCC = MAX 54 74 54, 74 74 54, 74 54, 74 74 0.25 0.35 2.4 2.4 - 0.65 4.2 4.2 0.25 0.35 0.4 0.5 250 0.4 0.5 20 IIH 0.8 - 1.5 V V V V V A V V A mA Min 2.0 0.7 V Typ Max Unit V Test Conditions Guaranteed Input HIGH Voltage for All Inputs Guaranteed Input LOW Voltage for All Inputs VCC = MIN, IIN = - 18 mA VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table IOL = 1.6 mA IOL = 3.2 mA VCC = VCC MIN, VIN = VIL or VIH per Truth Table VOL IO(off) VO(on) VCC = MAX, VIH = 2.0 V, VO(off) = 15 V, VIL = MAX IO(on) = 12 mA IO(on) = 24 mA VCC = MIN, VIH = 2.0 V, VIL per Truth Table VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.4 V IIL mA Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (VCC = 5.0 V, TA = 25C) Limits Symbol tPLH tPHL tPHL tPLH Parameter Turn-Off Time from A Input Turn-On Time from A Input Turn-Off Time from RBI Input Turn-On Time from RBI Input Min Typ Max 100 100 100 100 Unit ns ns Test Conditions CL = 15 pF, RL = 665 FAST AND LS TTL DATA 5-405 SN54/74LS248 GUARANTEED OPERATING RANGES Symbol VCC TA IOH Supply Voltage Operating Ambient Temperature Range Output Current -- High BI / RBO Output Current -- High a - g IOL Output Current -- Low BI / RBO Output Current -- Low BI / RBO Output Current -- Low a - g Output Current -- Low a - g Parameter 54 74 54 74 54, 74 54, 74 54 74 54 74 Min 4.5 4.75 - 55 0 Typ 5.0 5.0 25 25 Max 5.5 5.25 125 70 - 50 - 100 1.6 3.2 2.0 6.0 mA Unit V C A DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VOH IOH Parameter Input HIGH Voltage 54 Input LOW Voltage 74 Input Clamp Diode Voltage Output HIGH Voltage a - g and BI / RBO Output Current a-g Output LOW Voltage a-g VOL BI / RBO 54 74 54, 74 2.4 2.4 - 1.3 - 0.65 4.2 4.2 - 2.0 0.8 - 1.5 V V V mA Min 2.0 0.7 V Typ Max Unit V Test Conditions Guaranteed Input HIGH Voltage for All Inputs Guaranteed Input LOW Voltage for All Inputs VCC = MIN, IIN = - 18 mA VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VCC = MIN, VO = 0.85 V, Input Conditions as for VOH IOL = 2.0 mA IOL = 6.0 mA V 74 IIH Input HIGH Current Any Input, except BI/ RBO Input LOW Current Any Input, except BI/ RBO BI / RBO IOS ICC Short Circuit Current BI / RBO (Note 1) Power Supply Current - 0.3 25 0.35 0.5 20 0.1 - 0.4 - 1.2 - 2.0 38 mA mA VCC = MAX VCC = MAX A mA IOL = 1.6 mA IOL = 3.2 mA VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.4 V VCC = MIN, VIH = 2.0 V, VIL = per Truth Table 54, 74 74 54, 74 0.25 0.35 0.25 0.4 0.5 0.4 V IIL mA Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (VCC = 5.0 V, TA = 25C) Limits Symbol tPLH tPHL tPHL tPLH Parameter Propagation Delay Time, High-to-Low-Level Output from A Input Propagation Delay Time, Low-to-High-Level Output from A Input Propagation Delay Time, High-to-Low-Level Output from RBI Input Propagation Delay Time, Low-to-High-Level Output from RBI Input Min Typ Max 100 100 100 100 Unit ns ns Test Conditions CL = 15 pF RL = 4.0 k CL = 15 pF RL = 6.0 k FAST AND LS TTL DATA 5-406 SN54/74LS249 GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL VOH IOL Supply Voltage Operating Ambient Temperature Range Output Current -- High BI / RBO Output Current -- Low BI / RBO Output Current -- Low BI / RBO Output Voltage -- High a - g Output Current -- Low a - g Output Current -- Low a - g Parameter 54 74 54 74 54, 74 54 74 54, 74 54 74 Min 4.5 4.75 - 55 0 Typ 5.0 5.0 25 25 Max 5.5 5.25 125 70 - 50 1.6 3.2 5.5 4.0 8.0 Unit V C A mA V mA DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VOH IOH Parameter Input HIGH Voltage 54 Input LOW Voltage 74 Input Clamp Diode Voltage Output HIGH Voltage BI / RBO Output HIGH Current a-g Output LOW Voltage BI / RBO VOL a-g 54 74 54, 74 2.4 2.4 - 0.65 4.2 4.2 250 0.8 - 1.5 V V V A Min 2.0 0.7 V Typ Max Unit V Test Conditions Guaranteed Input HIGH Voltage for All Inputs Guaranteed Input LOW Voltage for All Inputs VCC = MIN, IIN = - 18 mA VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VCC = MIN, VIH = 2.0 V, VOH = 5.5 V, VIL = MAX IOL = 1.6 mA IOL = 3.2 mA V 74 IIH Input HIGH Current Any Input, except BI/ RBO Input LOW Current Any Input, except BI/ RBO BI / RBO IOS ICC Short Circuit Current BI / RBO (Note 1) Power Supply Current - 0.3 8.0 0.35 0.5 20 0.1 - 0.4 - 1.2 - 2.0 15 mA mA VCC = MAX VCC = MAX A mA IOL = 4.0 mA IOL = 8.0 mA VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.4 V VCC = MIN, VIH = 2.0 V, VIL = per Truth Table 54, 74 74 54, 74 0.25 0.35 0.25 0.4 0.5 0.4 V IIL mA Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (VCC = 5.0 V, TA = 25C) Limits Symbol tPHL tPLH tPHL tPLH Parameter Propagation Delay Time, High-to-Low-Level Output from A Input Propagation Delay Time, Low-to-High-Level Output from A Input Propagation Delay Time, High-to-Low-Level Output from RBI Input Propagation Delay Time, Low-to-High-Level Output from RBI Input Min Typ Max 100 100 100 100 Unit ns ns Test Conditions CL = 15 pF, RL = 2.0 CL = 15 pF, RL = 6.0 FAST AND LS TTL DATA 5-407 -A- Case 751B-03 D Suffix 16-Pin Plastic SO-16 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. 3. CONTROLLING DIMENSION: MILLIMETER. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. 751B 01 IS OBSOLETE, NEW STANDARD 751B 03. 16 9 -B1 8 P 8 PL 0.25 (0.010) M B M R X 45 G -TD 16 PL 0.25 (0.010) M C SEATING PLANE K T B S M F J A S DIM A B C D F G J K M P R MILLIMETERS MIN MAX 9.80 3.80 1.35 0.35 0.40 10.00 4.00 1.75 0.49 1.25 INCHES MIN MAX 0.386 0.150 0.054 0.014 0.016 0.393 0.157 0.068 0.019 0.049 1.27 BSC 0.19 0.10 0 5.80 0.25 0.25 0.25 7 6.20 0.50 0.050 BSC 0.008 0.004 0 0.229 0.010 0.009 0.009 7 0.244 0.019 Case 648-08 N Suffix 16-Pin Plastic -A16 9 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. 3. CONTROLLING DIMENSION: INCH. DIMENSION L" TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B" DOES NOT INCLUDE MOLD FLASH. 5. 6. ROUNDED CORNERS OPTIONAL. 648 01 THRU 07 OBSOLETE, NEW STANDARD 648 08. B 1 8 F S C -TK SEATING PLANE L H G D 16 PL 0.25 (0.010) M J M T A M DIM A B C D F G H J K L M S MILLIMETERS MIN MAX 18.80 6.35 3.69 0.39 1.02 19.55 6.85 4.44 0.53 1.77 INCHES MIN MAX 0.740 0.250 0.145 0.015 0.040 0.770 0.270 0.175 0.021 0.070 2.54 BSC 1.27 BSC 0.21 2.80 7.50 0 0.51 0.38 3.30 7.74 10 1.01 0.100 BSC 0.050 BSC 0.008 0.110 0.295 0 0.020 0.015 0.130 0.305 10 0.040 -A16 9 Case 620-09 J Suffix 16-Pin Ceramic Dual In-Line NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. -B1 8 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIM F MAY NARROW TO 0.76 (0.030) WHERE THE LEAD ENTERS THE CERAMIC BODY. C L 5. 620 01 THRU 08 OBSOLETE, NEW STANDARD 620 09. -TSEATING PLANE K E F D 16 PL 0.25 (0.010) M N G T A S M J 16 PL 0.25 (0.010) M T B S DIM A B C D E F G J K L M N MILLIMETERS MIN MAX 19.05 6.10 19.55 7.36 4.19 0.39 0.53 INCHES MIN MAX 0.750 0.240 0.770 0.290 0.165 0.015 0.021 1.27 BSC 1.40 1.77 0.050 BSC 0.055 0.070 2.54 BSC 0.23 0.27 5.08 7.62 BSC 0 0.39 15 0.88 0.100 BSC 0.009 0.011 0.200 0.300 BSC 0 0.015 15 0.035 FAST AND LS TTL DATA 5-408 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Literature Distribution Centers: USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England. JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. FAST AND LS TTL DATA 5-409 |
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