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M74HC390B1R

M74HC390B1R

M74HC390B1R

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Part Number M74HC390B1R
Manufacturer STMicroelectronics
Description IC DECADE COUNTER DUAL 16-DIP
Datasheet M74HC390B1R Datasheet
Package 16-DIP (0.300", 7.62mm)
In Stock 305 piece(s)
Unit Price Request a Quote
Lead Time To be Confirmed
Estimated Delivery Time Jan 21 - Jan 26 (Choose Expedited Shipping)
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Part Number # M74HC390B1R (Logic - Counters, Dividers) is manufactured by STMicroelectronics and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For M74HC390B1R specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add M74HC390B1R with quantity into BOM. Heisener.com does NOT require any registration to request a quote of M74HC390B1R.

M74HC390B1R Specifications

ManufacturerSTMicroelectronics
CategoryIntegrated Circuits (ICs) - Logic - Counters, Dividers
Datasheet M74HC390B1RDatasheet
Package16-DIP (0.300", 7.62mm)
Series74HC
Logic TypeCounter, Decade
DirectionUp
Number of Elements2
Number of Bits per Element4
ResetAsynchronous
TimingSynchronous
Count Rate79MHz
Trigger TypeNegative Edge
Voltage - Supply2 V ~ 6 V
Operating Temperature-55°C ~ 125°C
Mounting TypeThrough Hole
Package / Case16-DIP (0.300", 7.62mm)
Supplier Device Package16-DIP

M74HC390B1R Datasheet

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July 2006 Rev 2 1/17 17 M74HC390 Dual decade counter Features ■ HIgh Speed: fMAX = 79MHz (Typ.) at VCC = 6V ■ Low power dissipation: ICC = 4µA (Max.) at TA = 25°C ■ High noise immunity: VNIH = VNIL = 28 % VCC (Min.) ■ Balanced propagation delays: tPLH ≅ tPHL ■ Wide operating voltage range: VCC (Opr) = 2V to 6V ■ Pin and function compatible with 74 series 390 Description The M74HC390 is an high speed CMOS dual decade counter fabricated with silicon gate C2MOS technology. This dual decade counter contains two independent ripple carry counters. Each counter is composed of a divide by two and divide by five counter. The divide by two and divide by five counters can be cascaded to form dual decade, dual biquinary, or various combination up to a single divide by 100 counter. Each 4-bit counter is increased on the high to low transition (negative edge) of the clock input, and each has an independent clear input. When clear is set low all four bits of each counter are set to low. This enables count truncation and allows the implementation of divide by N counter configuration. All inputs are equipped with protection circuits against static discharge and transient excess voltage. DIP-16 SO-16 www.st.com Order codes Part number Package Packaging M74HC390B1R DIP-14 Tube M74HC390RM13TR SO-14 Tape and reel Ob so let e Pr od uc t(s ) - O bs ole te P ro du ct( s)

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Contents M74HC390 2/17 Contents 1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Block and logic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Timing chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 9 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 10 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Ob so let e Pr od uc t(s ) - O bs ole te P ro du ct( s)

Page 4

M74HC390 Pin settings 3/17 1 Pin settings 1.1 Pin connection Figure 1. Pin connection (top through view) 1.2 Pin description Table 1. Pin description Pin N° Symbol Name and function 1, 15 1 CLOCK A 2 CLOCK B Clock input divide by 2 section (HIGH to LOW Edge-Triggered) 2, 14 1 CLEAR 2 CLEAR Asynchronous master reset inputs 3, 5, 6, 7 1QA to 1QD Flip flop outputs 4, 12 1 CLOCK A 2 CLOCK B Clock input divide by 5 section (HIGH to LOW Edge-Triggered) 13, 11, 10, 9 2QA to 2QD Flip flop outputs 8 GND Ground (0V) 16 Vcc Positive supply voltage Ob so let e Pr od uc t(s ) - O bs ole te P ro du ct( s)

Page 5

Device summary M74HC390 4/17 2 Device summary Figure 2. IInput and output equivalent circuit Figure 3. Logic diagram Ob so let e Pr od uc t(s ) - O bs ole te P ro du ct( s)

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M74HC390 Truth table 5/17 3 Truth table Table 2. Truth table COUNT Outputs BCD COUNT (1) 1. Output QA is connected to input CLOCK B for BCD count. BI-QUINARY (2) 2. Output QD is connected to input CLOCK A for bi-quinary count. QD QC QB QA QA QD QC QB 0 L L L L L L L L 1 L L L H L L L H 2 L L H L L L H L 3 L L H H L L H H 4 L H L L L H L L 5 L H L H H H L L 6 L H H L H L L H 7 L H H H H L H L 8 H L L L H L H H 9 H L L H H H L L Table 3. Truth table Inputs Outputs CLOCK A CLOCK B CLEAR QA QB QC QD X X H L L L L X L BINARY COUNT UP X L QUINARY COUNT UP Ob so let e Pr od uc t( ) - O bs ole te P ro du ct( s)

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Block and logic diagrams M74HC390 6/17 4 Block and logic diagrams Figure 4. Block diagram Figure 5. Logic diagram Note: This logic diagram has not be used to estimate propagation delays Ob so let e Pr od uc t(s ) - O bs ole te P ro du ct( s)

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M74HC390 Timing chart 7/17 5 Timing chart Figure 6. Timing chart Ob so let e Pr od uc t(s ) - O bs ole te P ro du ct( s)

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Maximum rating M74HC390 8/17 6 Maximum rating Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. 6.1 Recommended operating conditions Table 4. 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(1) 1. 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C mW Tstg Storage temperature -65 to +150 °C TL Lead temperature (10 sec) 300 °C Table 5. 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 tr, tf Input rise and fall time VCC = 2.0V 0 to 1000 ns VCC = 4.5V 0 to 500 ns VCC = 6.0V 0 to 400 ns Ob so let e Pr od uc t(s ) - O bs ole te P ro du ct( s)

Page 10

M74HC390 Electrical characteristics 9/17 7 Electrical characteristics Table 6. DC specifications Symbol Parameter Test condition Value UnitVCC (V) TA = 25°C -40 to 85°C -55 to 125°C Min Typ Max Min Max Min Max VIH High level input voltage 2.0 1.5 1.5 1.5 V4.5 3.15 3.15 3.15 6.0 4.2 4.2 4.2 VIL Low level input voltage 2.0 0.5 0.5 0.5 V4.5 1.35 1.35 1.35 6.0 1.8 1.8 1.8 VOH High level output voltage 2.0 IO=-20µA 1.9 2.0 1.9 1.9 V 4.5 IO=-20µA 4.4 4.5 4.4 4.4 6.0 IO=-20µA 5.9 6.0 5.9 5.9 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 voltage 2.0 IO=20µA 0.0 0.1 0.1 0.1 V 4.5 IO=20µA 0.0 0.1 0.1 0.1 6.0 IO=20µA 0.0 0.1 0.1 0.1 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 II Input leakage current 6.0 VI = VCC or GND ±0.1 ±1 ±1 µA IOZ Output leakage current 6.0 VI = VIH or VIL VO = VCC or GND ±0.5 ±5 ±10 µA ICC Quiescent supply current 6.0 VI = VCC or GND 1 10 20 µA Ob so let e Pr od uc t(s ) - O bs ole te P ro du ct( s)

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