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M74HC74TTR产品简介:
ICGOO电子元器件商城为您提供M74HC74TTR由STMicroelectronics设计生产,在icgoo商城现货销售,并且可以通过原厂、代理商等渠道进行代购。 M74HC74TTR价格参考。STMicroelectronicsM74HC74TTR封装/规格:逻辑 - 触发器, 。您可以下载M74HC74TTR参考资料、Datasheet数据手册功能说明书,资料中有M74HC74TTR 详细功能的应用电路图电压和使用方法及教程。
STMicroelectronics的M74HC74TTR是一款双D型触发器,属于逻辑电路中的触发器类别。它广泛应用于各种数字电路设计中,特别是在需要存储和处理二进制数据的场景下。以下是其主要应用场景: 1. 数据存储与锁存:M74HC74TTR可以用于存储二进制数据(0或1)。它有两个独立的D型触发器,每个触发器都有一个数据输入(D)、时钟输入(CP)、置位(SET)和复位(RESET)引脚。通过时钟信号控制,可以在特定时刻将输入数据锁存到输出端(Q和/Q),适用于数据缓冲、寄存器等应用。 2. 脉冲整形与同步:该器件可用于脉冲信号的整形和同步。例如,在通信系统中,M74HC74TTR可以确保输入脉冲在时钟边沿对齐,从而避免毛刺或不稳定的信号传输。它还可以用于将异步信号同步到系统时钟,确保数据的准确性和稳定性。 3. 计数器与时序控制:M74HC74TTR常用于构建计数器和时序控制系统。通过级联多个触发器,可以实现多位二进制计数器,适用于定时器、分频器等应用。它还可以用于生成精确的时序信号,控制其他数字电路的工作顺序。 4. 状态机设计:在有限状态机(FSM)的设计中,M74HC74TTR可以用作状态寄存器,存储当前状态并根据输入信号和时钟脉冲切换到下一个状态。这种应用常见于自动控制系统、协议处理器等领域。 5. 接口电路:M74HC74TTR可以作为接口电路中的关键组件,用于缓冲和隔离不同模块之间的信号。例如,在微控制器与外部设备之间,它可以确保数据传输的可靠性和完整性。 6. 电源管理与保护:在某些电源管理系统中,M74HC74TTR可以用于监控和控制电源状态。例如,通过检测电源电压并在异常情况下触发保护机制,确保系统的稳定运行。 总之,M74HC74TTR凭借其高可靠性和灵活性,广泛应用于各种数字电路设计中,特别是在需要精确控制和数据存储的场合。
参数 | 数值 |
产品目录 | 集成电路 (IC) |
描述 | IC D-TYPE POS TRG DUAL 14TSSOP |
产品分类 | |
品牌 | STMicroelectronics |
数据手册 | |
产品图片 | |
产品型号 | M74HC74TTR |
rohs | 无铅 / 符合限制有害物质指令(RoHS)规范要求 |
产品系列 | 74HC |
不同V、最大CL时的最大传播延迟 | 26ns @ 6V,50pF |
产品目录页面 | |
元件数 | 2 |
其它名称 | 497-7391-6 |
其它有关文件 | http://www.st.com/web/catalog/sense_power/FM140/SC1798/PF74591?referrer=70071840 |
功能 | 设置(预设)和复位 |
包装 | Digi-Reel® |
安装类型 | 表面贴装 |
封装/外壳 | 14-TSSOP(0.173",4.40mm 宽) |
工作温度 | -55°C ~ 125°C (TA) |
标准包装 | 1 |
每元件位数 | 1 |
电压-电源 | 2 V ~ 6 V |
电流-输出高,低 | 5.2mA,5.2mA |
电流-静态 | 2µA |
类型 | D 型 |
触发器类型 | 正边沿 |
输入电容 | 5pF |
输出类型 | 差分 |
频率-时钟 | 67MHz |
M74HC74 DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR n HIGH SPEED : f = 67MHz (TYP.) at V = 6V MAX CC n LOW POWER DISSIPATION: I =2m A(MAX.) at T =25°C CC A n HIGH NOISE IMMUNITY: V = V = 28 % V (MIN.) NIH NIL CC n SYMMETRICAL OUTPUT IMPEDANCE: DIP SOP TSSOP |I | = I = 4mA (MIN) OH OL n BALANCED PROPAGATION DELAYS: tPLH @ tPHL ORDER CODES n WIDE OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R V (OPR) = 2V to 6V CC DIP M74HC74B1R n PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 74 SOP M74HC74M1R M74HC74RM13TR TSSOP M74HC74TTR DESCRIPTION The M74HC74 is an high speed CMOS DUAL D independent of the clock and accomplished by a TYPE FLIP FLOP WITH CLEAR fabricated with low on the appropriate input. silicon gate C2MOS technology. All inputs are equipped with protection circuits A signal on the D INPUT is transferred on the Q against static discharge and transient excess OUTPUT during the positive going transition of the voltage. clock pulse. CLEAR and PRESET are PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/12
M74HC74 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION Asynchronous Reset - 1,13 1CLR, 2CLR Direct Input 2, 12 1D, 2D Data Inputs Clock Input 3, 11 1CK, 2CK (LOW-to-HIGH, Edge-Triggered) Asynchronous Set - Direct 4, 10 1PR, 2PR Input 5, 9 1Q, 2Q True Flip-Flop Outputs Complement Flip-Flop 6, 8 1Q, 2Q Outputs 7 GND Ground (0V) 14 Vcc Positive Supply Voltage TRUTH TABLE INPUTS OUTPUTS FUNCTION CLR PR D CK Q Q L H X X L H CLEAR H L X X H L PRESET L L X X H H ---- H H L L H ---- H H H H L ---- H H X Qn Qn NO CHANGE X : Don’t Care LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays 2/12
M74HC74 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VCC Supply Voltage -0.5 to +7 V VI DC Input Voltage -0.5 to VCC + 0.5 V VO DC Output Voltage -0.5 to VCC + 0.5 V IIK DC Input Diode Current – 20 mA IOK DC Output Diode Current – 20 mA IO DC Output Current – 25 mA ICC or IGND DC VCC or Ground Current – 50 mA PD Power Dissipation 500(*) mW Tstg Storage Temperature -65 to +150 °C TL Lead Temperature (10 sec) 300 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied (*) 500mW at 65 (cid:176) C; derate to 300mW by 10mW/(cid:176) C from 65(cid:176) C to 85(cid:176) C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit VCC Supply Voltage 2 to 6 V VI Input Voltage 0 to VCC V VO Output Voltage 0 to VCC V Top Operating Temperature -55 to 125 °C Input Rise and Fall Time VCC = 2.0V 0 to 1000 ns tr, tf VCC = 4.5V 0 to 500 ns VCC = 6.0V 0 to 400 ns 3/12
M74HC74 DC SPECIFICATIONS Test Condition Value Symbol Parameter V TA = 25°C -40 to 85°C -55 to 125°C Unit CC (V) Min. Typ. Max. Min. Max. Min. Max. V High Level Input 2.0 1.5 1.5 1.5 IH Voltage 4.5 3.15 3.15 3.15 V 6.0 4.2 4.2 4.2 V Low Level Input 2.0 0.5 0.5 0.5 IL Voltage 4.5 1.35 1.35 1.35 V 6.0 1.8 1.8 1.8 VOH High Level Output 2.0 IO=-20 m A 1.9 2.0 1.9 1.9 Voltage 4.5 IO=-20 m A 4.4 4.5 4.4 4.4 6.0 IO=-20 m A 5.9 6.0 5.9 5.9 V 4.5 IO=-4.0 mA 4.18 4.31 4.13 4.10 6.0 IO=-5.2 mA 5.68 5.8 5.63 5.60 VOL Low Level Output 2.0 IO=20 m A 0.0 0.1 0.1 0.1 Voltage 4.5 IO=20 m A 0.0 0.1 0.1 0.1 6.0 IO=20 m A 0.0 0.1 0.1 0.1 V 4.5 IO=4.0 mA 0.17 0.26 0.33 0.40 6.0 IO=5.2 mA 0.18 0.26 0.33 0.40 I Input Leakage I Current 6.0 VI = VCC or GND – 0.1 – 1 – 1 m A I Quiescent Supply CC Current 6.0 VI = VCC or GND 2 20 40 m A 4/12
M74HC74 AC ELECTRICAL CHARACTERISTICS (C = 50 pF, Input t = t = 6ns) L r f Test Condition Value Symbol Parameter V TA = 25°C -40 to 85°C -55 to 125°C Unit CC (V) Min. Typ. Max. Min. Max. Min. Max. t t Output Transition 2.0 30 75 95 110 TLH THL Time 4.5 8 15 19 22 ns 6.0 7 13 16 19 t t Propagation Delay 2.0 48 150 190 225 PLH PHL Time (CK - Q, Q) 4.5 16 30 38 45 ns 6.0 13 26 32 38 t t Propagation Delay 2.0 51 150 190 225 PLH PHL Time (CLR, PR - 4.5 17 30 38 45 ns Q, Q) 6.0 15 26 32 38 f Maximum Clock 2.0 6.2 21 5 4.2 MAX Frequency 4.5 31 63 25 21 MHz 6.0 37 67 30 25 t Minimum Pulse 2.0 18 75 95 110 W(H) tW(L) Width (CK) 4.5 6 15 19 22 ns 6.0 6 13 16 19 t Minimum Pulse 2.0 21 75 95 110 W(L) Width (CLR, PR) 4.5 7 15 19 22 ns 6.0 6 13 16 19 t Minimum Set-up 2.0 15 75 95 110 s Time 4.5 4 15 19 22 ns 6.0 3 13 16 19 t Minimum Hold 2.0 0 0 0 h Time 4.5 0 0 0 ns 6.0 0 0 0 t Minimum Removal 2.0 0 25 30 35 REM Time (CLR, PR to 4.5 0 5 6 7 ns CK) 6.0 0 4 5 6 CAPACITIVE CHARACTERISTICS Test Condition Value Symbol Parameter V TA = 25°C -40 to 85°C -55 to 125°C Unit CC (V) Min. Typ. Max. Min. Max. Min. Max. CIN Input Capacitance 5.0 5 10 10 10 pF C Power Dissipation PD Capacitance (note 5.0 34 pF 1) 1) 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 operating current can be obtained by the following equation. I = C x V x f + I /2 (per FLIP/ CC(opr) PD CC IN CC FLOP) 5/12
M74HC74 TEST CIRCUIT C = 50pF or equivalent (includes jig and probe capacitance) L R = Z of pulse generator (typically 50W ) T OUT WAVEFORM 1: nCK TO nQ,nQ PROPAGATION DELAY TIMES,nD TO nCK SETUP AND HOLD TIMES, nCK MINIMUM PULSE WIDTH, MAXIMUM nCK FREQUENCY (f=1MHz; 50% duty cycle) 6/12
M74HC74 WAVEFORM 2 :nQ , nQ TO CLR, PR PROPAGATION DELAY TIMES, MINIMUM PULSE WIDTH (nCLR and nPR) (f=1MHz; 50% duty cycle) WAVEFORM 3 : MINIMUM PULSE WIDTH (nCLR and nPR),MINIMUM REMOVAL TIME (nCLR and nPR TO nCK)(f=1MHz; 50% duty cycle) 7/12
M74HC74 WAVEFORM 4 : MINIMUM PULSE WIDTH (nCLR, nPR , nCK) (f=1MHz; 50% duty cycle) 8/12
M74HC74 Plastic DIP-14 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. a1 0.51 0.020 B 1.39 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 0.280 I 5.1 0.201 L 3.3 0.130 Z 1.27 2.54 0.050 0.100 P001A 9/12
M74HC74 SO-14 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 1.75 0.068 a1 0.1 0.2 0.003 0.007 a2 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45° (typ.) D 8.55 8.75 0.336 0.344 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 7.62 0.300 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M 0.68 0.026 S 8° (max.) PO13G 10/12
M74HC74 TSSOP14 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 1.2 0.047 A1 0.05 0.15 0.002 0.004 0.006 A2 0.8 1 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 BSC 0.0256 BSC K 0° 8° 0° 8° L 0.45 0.60 0.75 0.018 0.024 0.030 A A2 K L A1 b e c E D E1 PIN 1 IDENTIFICATION 1 0080337D 11/12
M74HC74 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. © The ST logo is a registered trademark of STMicroelectronics © 2001 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom © http://www.st.com 12/12