m74hc191 STMicroelectronics, m74hc191 Datasheet
m74hc191
Available stocks
Related parts for m74hc191
m74hc191 Summary of contents
Page 1
... WIDE OPERATING VOLTAGE RANGE: V (OPR PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 191 DESCRIPTION The M74HC191 is an high speed CMOS 4-BIT SYNCHRONOUS UP/DOWN 2 fabricated with silicon gate C State changes of the counter are synchronous with the LOW-to-HIGH transition of the Clock Pulse Input ...
Page 2
... M74HC191 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUTS LOAD ENABLE D Don’t Care The level of steady state inputs a through d respectively 2/14 PIN DESCRIPTION PIN 15 ...
Page 3
... LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays M74HC191 3/14 ...
Page 4
... M74HC191 TIMING CHART ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current Ground Current CC GND CC P Power Dissipation D T Storage Temperature stg T Lead Temperature (10 sec) L Absolute Maximum Ratings are those values beyond which damage to the device may occur ...
Page 5
... GND 6 Value -55 to 125 = 2. 1000 = 4. 500 = 6. 400 Value = 25°C -40 to 85°C -55 to 125°C Typ. Max. Min. Max. Min. 1.5 1.5 3.15 3.15 4.2 4.2 0.5 0.5 1.35 1.35 1.8 1.8 2.0 1.9 1.9 4.5 4.4 4.4 6.0 5.9 5.9 4.31 4.13 4.10 5.8 5.63 5.60 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.1 0.17 0.26 0.33 0.18 0.26 0.33 0 M74HC191 Unit ° Unit Max. V 0.5 1.35 V 1.8 V 0.1 0.1 0.1 V 0.40 0. 5/14 ...
Page 6
... M74HC191 AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH PHL Time (CLOCK - Propagation Delay PLH PHL Time (CLOCK - RCO Propagation Delay PLH PHL Time (CLOCK - MAX/MIN Propagation Delay PLH PHL Time (LOAD - Q) ...
Page 7
... Typ. Max. Min. Max. Min Value = 25°C -40 to 85°C -55 to 125°C Typ. Max. Min. Max. Min 112 = CC(opr M74HC191 Unit Max Unit Max 7/14 ...
Page 8
... M74HC191 WAVEFORM 1: PROPAGATION DELAY TIME, MINIMUM PULSE WIDTH (CLOCK)(f=1MHz; 50% duty cycle) WAVEFORM 2 : PROPAGATION DELAY TIME, SETUP AND HOLD TIME (A-D TO LOAD) (f=1MHz; 50% duty cycle) 8/14 ...
Page 9
... WAVEFORM 3 : MINIMUM PULSE WIDTH (LOAD) AND REMOVAL TIME (LOAD TO CLOCK) (f=1MHz; 50% duty cycle) WAVEFORM 4 : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle) M74HC191 9/14 ...
Page 10
... M74HC191 WAVEFORM 5 : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle) WAVEFORM 6 : SETUP AND HOLD TIME (f=1MHz; 50% duty cycle) 10/14 ...
Page 11
... Plastic DIP-16 (0.25) MECHANICAL DATA mm. DIM. MIN. a1 0. 17. TYP MAX. MIN. 0.020 1.65 0.030 0.5 0.25 20 8.5 2.54 7.1 5.1 3.3 1.27 M74HC191 inch TYP. MAX. 0.065 0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 P001C 11/14 ...
Page 12
... M74HC191 DIM. MIN 0 0. 9 3.8 G 4 12/14 SO-16 MECHANICAL DATA mm. TYP MAX. 1.75 0.2 1.65 0.46 0.25 0.5 45° (typ.) 10 6.2 1.27 8.89 4.0 5.3 1.27 0.62 8° (max.) inch MIN. TYP. MAX. 0.068 0.003 0.007 0.064 0.013 0.018 0.007 0.010 0.019 0.385 0.393 0.228 0.244 0.050 0.350 0.149 0.157 ...
Page 13
... PIN 1 IDENTIFICATION 1 mm. TYP MAX. 1.2 0.15 1 1.05 0.30 0.20 5 5.1 6.4 6.6 4.4 4.48 0.65 BSC 8° 0.60 0. M74HC191 inch MIN. TYP. MAX. 0.047 0.002 0.004 0.006 0.031 0.039 0.041 0.007 0.012 0.004 0.0089 0.193 0.197 0.201 0.244 0.252 0.260 0.169 0.173 0.176 0.0256 BSC 0° 0.018 0.024 ...
Page 14
... M74HC191 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 ...