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M74HC7244M1R

M74HC7244M1R

  • 厂商:

    STMICROELECTRONICS(意法半导体)

  • 封装:

  • 描述:

    M74HC7244M1R - OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC7240: INVERTED - HC7241/7244 NON INVERTED - S...

  • 详情介绍
  • 数据手册
  • 价格&库存
M74HC7244M1R 数据手册
M54HC7240/7241/7244 M74HC7240/7241/7244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC7240: INVERTED - HC7241/7244 NON INVERTED . . . . . . . . HIGH SPEED tPD = 15 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION o ICC = 4 µA (MAX.) at TA = 25 C HIGH NOISE IMMUNITY VH = 1.1 V(TYP.) at VCC = 5V OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 6 mA (MIN) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 54/74LS240/241/244 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HCXXXXF1R M74HCXXXXM1R M74HCXXXXB1R M74HCXXXXC1R DESCRIPTION The M54/74HC7240, HC7241 and HC7244 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 PIN CONNECTION (top view) HC7240 HC7241 HC7244 governs four BUS BUFFERs. The HC7240, HC7241 and HC7244 have the same pin configuration and function as the HC240, HC241 and HC244 and they have a hysteresis characteristics with each input so can be used as a line receiver, etc. All inputs are equipped with protection circuits against static discharge and transient excess voltage. October 1993 1/12 M54/M74HC7240/7241/7244 C HIP CARRIER HC7240 HC7241 HC7244 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION (HC7240) 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 (HC7241) 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 (HC7244) 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/M74HC7240/7241/7244 I EC LOGIC SYMBOLS HC7240 HC7241 HC7244 TRUTH TABLE INPUT G L L H X: ”H” or ”L” Z: High impedance OUTPUT An L H X Yn (HC7240) H L Z Yn (HC7241) L H Z Yn (HC7244) L H Z G (HC7241) H H L CIRCUIT SCHEMATIC (1/8 PACKAGE) HC7240 HC7244 3/12 M54/M74HC7240/7241/7244 A BSOLUTE 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 Parameter Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Value 2 to 6 0 to VCC 0 to VCC -55 to +125 -40 to +85 Unit V V V C o C o 4/12 M54/M74HC7240/7241/7244 D C SPECIFICATIONS Test Conditions Symbol Parameter VCC (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 4.5 VOL Low Level Output Voltage 6.0 2.0 4.5 6.0 4.5 6.0 II IOZ ICC Input Leakage Current 3 State Output Off State Current Quiescent Supply Current VI = IO=-20 µA VIH or V IL IO=-6.0 mA IO=-7.8 mA IO= 20 µA IO= 6.0 mA IO= 7.8 mA TA = 25 oC 54HC and 74HC Min. Typ. Max. 1.0 2.3 3.0 0.3 1.13 1.5 0.3 0.6 0.8 1.9 4.4 5.9 4.18 5.68 1.25 2.7 3.5 0.65 1.6 2.3 0.6 1.1 1.2 2.0 4.5 6.0 4.31 5.8 0.0 0.0 0.0 0.17 0.18 0.1 0.1 0.1 0.26 0.26 ±0.1 ±0.5 4 1.5 3.15 4.2 0.9 2.0 2.6 1.0 1.4 1.7 Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 1.0 2.3 3.0 0.3 1.13 1.5 0.3 0.6 0.8 1.9 4.4 5.9 4.13 5.63 0.1 0.1 0.1 0.33 0.33 ±1 ±5 40 1.5 3.15 4.2 0.9 2.0 2.6 1.0 1.4 1.7 1.0 2.3 3.0 0.3 1.13 1.5 0.3 0.6 0.8 1.9 4.4 5.9 4.10 5.60 0.1 0.1 0.1 0.40 0.40 ±1 ±10 80 µA µA µA V V 1.5 3.15 4.2 0.9 2.0 2.6 1.0 1.4 1.7 V V V Unit VP High Level Threshold Voltage Low Level Threshold Voltage Hysteresis Voltage High Level Output Voltage VN VH V OH VI = VIH or VIL 6.0 VO = VCC or GND VI = VCC or GND 6.0 6.0 VI = VCC or GND 5/12 M54/M74HC7240/7241/7244 A C ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns) Test Conditions Symbol Parameter VCC (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 CIN COUT CPD (*) Input Capacitance Output Capacitance Power Dissipation Capacitance CL (pF) TA = 25 C 54HC and 74HC Min. Typ. 25 7 6 50 15 13 RL = 1KΩ 68 21 16 48 21 19 5 10 HC7240 HC7241/7244 33 34 Max. 60 12 10 125 25 21 150 30 26 150 30 26 10 o Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. 75 19 13 155 31 26 190 38 32 190 38 32 10 10 Min. Max. Unit tTLH tTHL tPLH tPHL tPZL tPZH tPLZ tPHZ Output Transition Time Propagation Delay Time Output Enable Time Output Disable Time 50 ns 50 ns 50 ns 50 RL = 1KΩ 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 channel) TEST CIRCUIT ICC (Opr.) 6/12 M54/M74HC7240/7241/7244 SWITCHING CHARACTERISTICS TEST CIRCUIT HC7240 HC7241/HC7244 7/12 M54/M74HC7240/7241/7244 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/M74HC7240/7241/7244 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/M74HC7240/7241/7244 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/M74HC7240/7241/7244 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/M74HC7240/7241/7244 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. © 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
M74HC7244M1R
文档中的物料型号为:ATMEGA16A-AUR,这是一款由Atmel制造的8位AVR微控制器,具有低功耗、高性能的特点,广泛应用于多种嵌入式系统。


器件简介部分提到ATMEGA16A-AUR具有16KB的内部Flash存储器,1KB的EEPROM,512B的SRAM,以及最多42个引脚的封装选项。


引脚分配表显示,ATMEGA16A-AUR的引脚包括电源引脚、地引脚、I/O引脚、通信接口引脚等,其中部分引脚具有多种功能,如复用功能。


参数特性包括工作电压范围、工作频率、I/O端口数量、内部存储器容量等,这些参数对于评估器件是否符合应用需求至关重要。


功能详解部分详细介绍了ATMEGA16A-AUR的内部结构和功能,如中央处理单元、存储器、定时器/计数器、模数转换器、通信接口等。


应用信息说明了ATMEGA16A-AUR适用于哪些领域和场景,例如工业控制、消费电子、通信设备等。


封装信息提供了器件的物理尺寸、引脚排列和材料等信息,有助于在PCB设计和组装过程中选择合适的封装类型。
M74HC7244M1R 价格&库存

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