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| M54HCT240/241/244 M74HCT240/241/244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HCT240: INVERTED - HCT241/244 NON INVERTED .HI .LOWPOWERDI .COMPATI .OUTPUTDRI .SYMMETRI .BALANCEDPROPAGATI .PI DESCRIPTION GH SPEED tPD = 13 ns (TYP.) at VCC = 5V SSIPATION o ICC = 4 A (MAX.) at TA = 25 C BLE WITH TTL OUTPUTS VIH = 2V (MIN.) VIL = 0.8V (MAX) VE CAPABILITY 15 LSTTL LOADS CAL OUTPUT IMPEDANCE |IOH| = IOL = 6 mA (MIN) ON DELAYS tPLH = tPHL N AND FUNCTION COMPATIBLE WITH 54/74LS240/241/244 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HCTXXXF1R M74HCTXXXM1R M74HCTXXXB1R M74HCTXXXC1R The M54/74HCT240, HCT241 and HCT244 are high speed CMOS OCTAL BUS BUFFERs fabricated in silicon gate C2MOS technology. They have the same high speed performance of LSTTL combined with true CMOS low power consumption. The designer has a choise of select combination of inverting and non-inverting outputs, symmetrical G (active low output control) input, and complementary G and G inputs. Each control input governs four BUS BUFFERs. This integrated circuit has input and output PIN CONNECTION (top view) HCT240 characteristics that are fully compatible with 54/74 LSTTL logic families. M54/74HCT devices are designed to directly interface HSC2MOS systems with TTL and NMOS components. They are also plug in replacements for LSTTL devices giving a reduction of power consumption. These devices are designed to be used with 3 state memory address drivers, etc. All inputs are equipped with protection circuits against static discharge and transient excess voltage. HCT241 HCT244 September 1993 1/12 M54/M74HCT240/241/244 CHIP CARRIER HCT240 HCT241 HCT244 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION (HCT240) PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage PIN DESCRIPTION (HCT241) PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND V CC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage PIN DESCRIPTION (HCT244) PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage 2/12 M54/M74HCT240/241/244 IEC LOGIC SYMBOLS HCT240 HCT241 HCT244 TRUTH TABLE INPUT G L L H X: "H" or "L" Z: High impedance OUTPUT An L H X Yn (HCT240) H L Z Yn (HCT241) L H Z Yn (HCT244) L H Z G (HCT241) H H L CIRCUIT SCHEMATIC (1/8 PACKAGE) HCT240 HCT241/244 3/12 M54/M74HCT240/241/244 ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO ICC or IGND PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source Sink Current Per Output Pin DC VCC or Ground Current Power Dissipation Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 20 20 35 70 500 (*) -65 to +150 300 Unit V V V mA mA mA mA mW o o C C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied. (*) 500 mW: 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC RECOMMENDED OPERATING CONDITIONS Symbol VCC VI VO Top tr, tf Parameter Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Input Rise and Fall Time (VCC = 4.5 to 5.5V) Value 4.5 to 5.5 0 to VCC 0 to VCC -55 to +125 -40 to +85 0 to 500 Unit V V V C o C ns o 4/12 M54/M74HCT240/241/244 DC SPECIFICATIONS Test Conditions Symbol Parameter VCC (V) 4.5 to 5.5 4.5 to 5.5 4.5 VI = IO=-20 A VIH or IO=-6.0 mA V IL VI = IO= 20 A VIH or IO= 6.0 mA V IL VI = VCC or GND VI = VCC or GND Per Input pin VI = 0.5V or 2.4V Other Inputs at V CC or GND 4.4 4.18 4.5 4.31 0.0 0.17 0.1 0.26 0.1 4 2.0 TA = 25 oC 54HC and 74HC Min. Typ. Max. 2.0 Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 2.0 2.0 Unit VIH High Level Input Voltage Low Level Input Voltage High Level Output Voltage V V IL 0.8 0.8 0.8 V V OH 4.4 4.13 0.1 0.33 1 40 2.9 4.4 4.10 0.1 V 0.4 1 80 3.0 A A mA V VOL Low Level Output Voltage 4.5 II ICC ICC Input Leakage Current Quiescent Supply Current Additional worst case supply current 5.5 5.5 5.5 5/12 M54/M74HCT240/241/244 AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns) Test Conditions Symbol Parameter VCC (V) 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 CL (pF) 50 50 150 50 150 50 150 50 RL = 1K RL = 1K RL = 1K TA = 25 C 54HC and 74HC Min. Typ. 7 15 21 15 21 17 23 16 5 10 HCT240 HCT241/244 33 31 Max. 12 22 30 25 33 30 38 30 10 o Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. 15 28 38 31 41 38 48 38 10 Min. Max. 18 33 45 38 50 45 57 45 10 Unit tTLH tTHL tPLH tPHL tPLH tPHL tPZL tPZH tPLZ tPHZ CIN COUT CPD (*) Output Transition Time Propagation Delay Time Propagation Delay Time Output Enable Time Output Disable Time Input Capacitance Output Capacitance Power Dissipation Capacitance ns ns ns ns ns ns ns ns pF pF pF (*) CPD is defined as the value of the IC's internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD *VCC *fIN + ICC/8 (per circuit) TEST CIRCUIT ICC (Opr.) HCT240 6/12 M54/M74HCT240/241/244 SWITCHING CHARACTERISTICS TEST WAVEFORM 7/12 M54/M74HCT240/241/244 Plastic DIP20 (0.25) MECHANICAL DATA mm MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.34 8.5 2.54 22.86 7.1 3.93 0.130 0.053 0.254 1.39 0.45 0.25 25.4 0.335 0.100 0.900 0.280 0.155 1.65 TYP. MAX. MIN. 0.010 0.055 0.018 0.010 1.000 0.065 inch TYP. MAX. DIM. P001J 8/12 M54/M74HCT240/241/244 Ceramic DIP20 MECHANICAL DATA mm MIN. A B D E e3 F G I L M N1 P Q 7.9 2.29 0.4 1.27 0.22 0.51 0.5 22.86 2.79 0.55 1.52 0.31 1.27 0.090 0.016 0.050 0.009 0.020 3.3 1.78 0.020 0.900 0.110 0.022 0.060 0.012 0.050 TYP. MAX. 25 7.8 0.130 0.070 MIN. inch TYP. MAX. 0.984 0.307 DIM. 4 (min.), 15 (max.) 8.13 5.71 0.311 0.320 0.225 P057H 9/12 M54/M74HCT240/241/244 SO20 MECHANICAL DATA DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F L M S 7.40 0.50 12.60 10.00 1.27 11.43 7.60 1.27 0.75 8 (max.) 0.291 0.19 13.00 10.65 0.35 0.23 0.50 45 (typ.) 0.496 0.393 0.050 0.450 0.299 0.050 0.029 0.512 0.419 0.10 mm TYP. MAX. 2.65 0.20 2.45 0.49 0.32 0.013 0.009 0.020 0.004 MIN. inch TYP. MAX. 0.104 0.007 0.096 0.019 0.012 P013L 10/12 M54/M74HCT240/241/244 PLCC20 MECHANICAL DATA mm MIN. A B D d1 d2 E e e3 F G M M1 1.27 1.14 7.37 1.27 5.08 0.38 0.101 0.050 0.045 9.78 8.89 4.2 2.54 0.56 8.38 0.290 0.050 0.200 0.015 0.004 TYP. MAX. 10.03 9.04 4.57 MIN. 0.385 0.350 0.165 0.100 0.022 0.330 inch TYP. MAX. 0.395 0.356 0.180 DIM. P027A 11/12 M54/M74HCT240/241/244 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics. (c) 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A 12/12 |
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