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| QUAD 2-PORT REGISTER The SN54 / 74LS398 and SN54 / 74LS399 are Quad 2-Port Registers. They are the logical equivalent of a quad 2-input multiplexer followed by a quad 4-bit edge-triggered register. A Common Select input selects between two 4-bit input ports (data sources). The selected data is transferred to the output register on the LOW-to-HIGH transition of the Clock input. The SN54/ 74LS398 features both Q and Q inputs, while the SN54/ 74LS399 has only Q outputs. SN54/74LS398 SN54/74LS399 QUAD 2-PORT REGISTER LOW POWER SCHOTTKY * * * * Select From Two Data Sources Fully Positive Edge-Triggered Operation Both True and Complemented Outputs on SN54/ 74LS398 Input Clamp Diodes Limit High-Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) VCC Qd 20 19 Qd 18 Iod 17 I1d 16 I1c 15 I0c 14 Qc 13 Qc 12 CP 11 16 J SUFFIX CERAMIC CASE 620-09 1 SN54 / 74LS398 N SUFFIX PLASTIC CASE 648-08 1 1 S 2 Qa 3 Qa 4 I0a 5 I1a 6 I1b 7 I0b 8 Qb 9 Qb 10 GND 16 VCC = PIN 20 GND = PIN 10 VCC 16 Qd 15 I0d 14 I1d 13 I1c 12 I0c 11 Qc 10 CP 9 16 1 D SUFFIX SOIC CASE 751B-03 SN54 / 74LS399 20 J SUFFIX CERAMIC CASE 732-03 1 1 S 2 Qa 3 I0a 4 5 6 I0b 7 Qb 8 GND I1a I1b VCC = PIN 16 GND = PIN 8 PIN NAMES LOADING (Note a) HIGH LOW 0.25 U.L. 0.25 U.L. 0.25 U.L. 0.25 U.L. 5 (2.5) U.L. 5 (2.5) U.L. 20 1 N SUFFIX PLASTIC CASE 738-03 S CP I0a - I0d I1a - I0d Qa - Qd Qa - Qd Common Select Input Clock (Active HIGH Going Edge) Input Data Inputs From Source 0 Data Inputs From Source 1 Register True Outputs (Note b) Register Complementary Outputs (Note b) 0.5 U.L. 0.5 U.L. 0.5 U.L. 0.5 U.L. 10 U.L. 10 U.L. 20 1 DW SUFFIX SOIC CASE 751D-03 ORDERING INFORMATION SN54LSXXXJ SN74LSXXXN SN74LSXXXDW SN74LSXXXD Ceramic Plastic SOIC SOIC NOTES: a) 1 TTL Unit Load (U.L.) = 40 A HIGH/1.6 mA LOW. b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74) Temperature Ranges. FAST AND LS TTL DATA 5-557 SN54/74LS398 * SN54/74LS399 FUNCTIONAL BLOCK DIAGRAM IOA S IIA IOB IIB IOC IIC IOD IID R * SN54 / 74LS398 only * S R S R S R S * * * QA QA QB QB QC QC QD QD FUNCTIONAL DESCRIPTION The SN54 / 74LS398 and SN54 / 74LS399 are high-speed Quad 2-Port Registers. They select four bits of data from two sources (Ports) under the control of a common Select Input (S). The selected data is transferred to a 4-Bit Output Register synchronous with the LOW-to-HIGH transition of the Clock in- put (CP). The 4-Bit RS type output register is fully edge-triggered. The Data inputs (I) and Select inputs (S) must be stable only a setup time prior to and hold time after the LOW-to-HIGH transition of the Clock input for predictable operation. The SN54 / 74LS398 has both Q and Q Outputs available. FUNCTION TABLE INPUTS S I I h h I0 I h X X I1 X X I h Q L H L H OUTPUTS Q* H L H L *SN54 / 74LS398 only I = LOW Voltage Level one setup time pior to the LOW-to-HIGH clock transition h = HIGH Voltage Level one setup time prior to the LOW-to-HIGH clock transition L = LOW Voltage Level H = HIGH Voltage Level X = Immaterial FAST AND LS TTL DATA 5-558 SN54/74LS398 * SN54/74LS399 GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current -- High Output Current -- Low Parameter 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 - 0.4 4.0 8.0 Unit V C mA 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 54 Output HIGH Voltage 74 54, 74 VOL Output LOW Voltage 74 Input HIGH Current 0.1 Input LOW Current Short Circuit Current (Note 1) Power Supply Current - 20 - 0.4 - 100 13 0.35 0.5 20 IIH IIL IOS ICC V A mA mA mA mA 2.7 3.5 0.25 0.4 V V 2.5 - 0.65 3.5 0.8 - 1.5 V V 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 = 4.0 mA IOL = 8.0 mA VCC = VCC MIN, VIN = VIL or VIH per Truth Table VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.4 V VCC = MAX VCC = MAX Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (TA = 25C, VCC = 5.0 V) Limits Symbol tPLH tPHL Parameter Propagation Delay, Clock to Output Q Min Typ 18 21 Max 27 32 Unit ns Test Conditions VCC = 5.0 V CL = 15 pF FAST AND LS TTL DATA 5-559 SN54/74LS398 * SN54/74LS399 AC SETUP REQUIREMENTS (TA = 25C) Limits Symbol tW ts ts th Parameter Clock Pulse Width Data Setup Time Select Setup Time Hold Time, Any Input Min 20 25 45 0 Typ Max Unit ns ns ns ns VCC = 5.0 V Test Conditions DEFINITIONS OF TERMS SETUP TIME(ts) -- is defined as the minimum time required for the correct logic level to be present at the logic input prior to the clock transition from LOW-to-HIGH in order to be recognized and transferred to the outputs. HOLD TIME(th) -- is defined as the minimum time following the clock transition from LOW-to-HIGH that the logic level must be maintained at the input in order to ensure continued recognition. A negative Hold Time indicates that the correct logic level may be released prior to the clock transition from LOW-to-HIGH and still be recognized. AC WAVEFORMS I0 I1 * 1.3 V th(L) 1.3 V S* th(H) ts(L) 1.3 V 1.3 V 1.3 V ts(L) CP 1.3 V tW(L) ts(H) tW(H) th(L) = 0 ts(H) th(H) = 0 CP tPLH 1.3 V Q or Q 1.3 V 1.3 V tPHL Q 1.3 V 1.3 V Q = I0 1.3 V Q = I1 Figure 1 Figure 2 CP 1.3 V 1.3 V tPHL Q 1.3 V 1.3 V tPLH Q 1.3 V tPLH 1.3 V tPHL Figure 3 *The shaded areas indicate when the input is permitted to change for predictable output performance. FAST AND LS TTL DATA 5-560 -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 5-561 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 5-562 |
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