SN54/74LS365A SN54/74LS366A SN54/74LS367A SN54/74LS368A 3-STATE HEX BUFFERS These devices are high speed hex buffers with 3-state outputs. They are organized as single 6-bit or 2-bit / 4-bit, with inverting or non-inverting data (D) paths. The outputs are designed to drive 15 TTL Unit Loads or 60 Low Power Schottky loads when the Enable (E) is LOW. When the Output Enable (E) is HIGH, the outputs are forced to a high impedance “off” state. If the outputs of the 3-state devices are tied together, all but one device must be in the high impedance state to avoid high currents that would exceed the maximum ratings. Designers should ensure that Output Enable signals to 3-state devices whose outputs are tied together are designed so there is no overlap. 3-STATE HEX BUFFERS LOW POWER SCHOTTKY J SUFFIX CERAMIC CASE 620-09 16 1 N SUFFIX PLASTIC CASE 648-08 16 1 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage 54 74 4.5 4.75 5.0 5.0 5.5 5.25 V TA Operating Ambient Temperature Range 54 74 – 55 0 25 25 125 70 °C IOH Output Current — High 54 74 – 1.0 – 2.6 mA IOL Output Current — Low 54 74 12 24 mA FAST AND LS TTL DATA 5-516 SN54/74LS365A • SN54/74LS366A SN54/74LS367A • SN54/74LS368A SN54 / 74LS366A HEX 3-STATE INVERTER BUFFER WITH COMMON 2-INPUT NOR ENABLE SN54 / 74LS365A HEX 3-STATE BUFFER WITH COMMON 2-INPUT NOR ENABLE VCC E2 16 15 14 13 12 11 10 1 2 3 4 5 6 7 E1 VCC E2 16 15 14 13 12 11 10 8 1 2 3 4 5 6 7 GND E1 9 TRUTH TABLE INPUTS OUTPUT E1 E2 D L L H X L L X H L H X X 8 GND TRUTH TABLE INPUTS 9 L H (Z) (Z) OUTPUT E1 E2 D L L H X L L X H L H X X H L (Z) (Z) SN54 / 74LS367A HEX 3-STATE BUFFER SEPARATE 2-BIT AND 4-BIT SECTIONS SN54 / 74LS368A HEX 3-STATE INVERTER BUFFER SEPARATE 2-BIT AND 4-BIT SECTIONS VCC E VCC E 16 15 14 13 12 11 10 16 15 14 13 12 11 10 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 GND E E 9 TRUTH TABLE INPUTS E D L L H L H X INPUTS L H (Z) FAST AND LS TTL DATA 5-517 8 GND TRUTH TABLE OUTPUT 9 E D L L H L H X OUTPUT H L (Z) SN54/74LS365A • SN54/74LS366A SN54/74LS367A • SN54/74LS368A DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Min Parameter VIH Input HIGH Voltage VIL Input LOW Voltage VIK Input Clamp Diode Voltage VOH Output HIGH Voltage VOL Output LOW Voltage IOZH IOZL IIH Input HIGH Current Typ Max 2.0 54 0.7 74 0.8 – 0.65 – 1.5 IOS ICC Test Conditions V Guaranteed Input HIGH Voltage for All Inputs V Guaranteed Input LOW Voltage for All Inputs V VCC = MIN, IIN = – 18 mA 54 2.4 3.4 V 74 2.4 3.1 V VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VCC = VCC MIN, VIN = VIL or VIH per Truth Table 54, 74 0.25 0.4 V IOL = 12 mA 74 0.35 0.5 V IOL = 24 mA Output Off Current HIGH 20 µA VCC = MAX, VOUT = 2.7 V Output Off Current LOW – 20 µA VCC = MAX, VOUT = 0.4 V 20 µA VCC = MAX, VIN = 2.7 V 0.1 mA VCC = MAX, VIN = 7.0 V – 0.4 mA VCC = MAX, VIN = 0.4 V – 20 µA VCC = MAX, VIN = 0.5 V Either E Input at 2.0 V – 0.4 mA VCC = MAX, VIN = 0.4 V Both E Inputs at 0.4 V – 225 mA VCC = MAX 24 mA VCC = MAX Input LOW Current E Inputs IIL Unit D Inputs Short Circuit Current (Note 1) – 40 Power Supply Current LS365A, 367A LS366A, 368A 21 Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (TA = 25°C, VCC = 5.0 V) Limits LS365A / LS367A Symbol Parameter LS366A / LS368A Typ Max Unit 16 22 7.0 12 15 18 ns 35 40 18 28 35 45 ns 32 35 ns Typ Max Propagation Delay 10 9.0 tPZH tPZL Output Enable Time 19 24 tPHZ tPLZ Output Disable Time tPLH tPHL Min Min 30 35 FAST AND LS TTL DATA 5-518 Test Conditions CL = 45 pF, RL = 667 Ω CL = 5.0 pF Case 751B-03 D Suffix 16-Pin Plastic SO-16 -A- "! ! " " ! " # 1 %# ) ! !" $ !" 8 C -T- D M K " ! #! J F ! Case 648-08 N Suffix 16-Pin Plastic R X 45° G " ! ) #! P ! " " 9 -B- ! 16 & ! ! ° ° ° ° ( ( ( ( "! ! " " ! ! ' " " ! ' ! " # & -A- 16 9 1 8 ! ! $ ! B # ) " ! " # ) !" $ !" ) F L C S -T- K H G M J D " Case 620-09 J Suffix 16-Pin Ceramic Dual In-Line -A- ! ! ! ! ° ° ° ° "! ! " 16 " ) " L K M N J G D " $ " $ ! " " ! ! FAST AND LS TTL DATA 5-519 & # ) !" $ !" ) -T $ " " C F & 8 E ! ! ! " " -B1 & 9 * * ! ! ! ! * * ! ° ° ! ° ° Motorola reserves the right to make changes without further notice to any products herein. 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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 5-520