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File name:4580.pdf
Size:231 kB
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Mfg:Motorola
Model:4580 🔎
Original:CMOS 4xxx 🔎
Descr:4 x 4 Multiport Register
Group:Electronics > Components > Integrated circuits
Uploaded:27-06-2005
User:dupator
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File name 4580.pdf

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC14580B 4 x 4 Multiport Register The MC14580B is a 4 by 4 multiport register useful in small scratch pad memories, arithmetic operations when coupled with an adder, and other data storage applications. It allows independent reading of any two words (or the same word at both outputs) while writing into any one of four words. Address changing and data entry occur on the rising edge of the clock. When the write enable input is low, the contents of any word may be accessed but not altered. · · · · · No Restrictions on Clock Input Rise or Fall Times 3­State Outputs Single Phase Clocking Supply Voltage Range = 3.0 Vdc to 18 Vdc Capable of Driving Two Low­power TTL Loads or one Low­power Schottky TTL Load Over the Rated Temperature Range · Pin Compatible with CD40108 MAXIMUM RATINGS* (Voltages Referenced to VSS) Symbol VDD Parameter DC Supply Voltage L SUFFIX CERAMIC CASE 623 P SUFFIX PLASTIC CASE 709 DW SUFFIX SOIC CASE 751E ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Value Unit V V mA ­ 0.5 to + 18.0 Vin, Vout Iin, Iout PD Tstg TL Input or Output Voltage (DC or Transient) Input or Output Current (DC or Transient), per Pin Power Dissipation, per Package Storage Temperature Lead Temperature (8­Second Soldering) ­ 0.5 to VDD + 0.5 ± 10 500 ­ 65 to + 150 260 mW ORDERING INFORMATION MC14XXXBCP MC14XXXBCL MC14XXXBDW Plastic Ceramic SOIC TA = ­ 55° to 125°C for all packages. PIN ASSIGNMENT Q3B Q2B 3­STATE A Q0A Q1A Q2A Q3A WRITE 0 WRITE 1 READ 1B READ 0B VSS 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VDD Q1B Q0B 3­STATE B D0 D1 D2 D3 CLOCK WE READ 1A READ 0A _C _C * Maximum Ratings are those values beyond which damage to the device may occur. Temperature Derating: Plastic "P and D/DW" Packages: ­ 7.0 mW/_C From 65_C To 125_C Ceramic "L" Packages: ­ 12 mW/_C From 100_C To 125_C BLOCK DIAGRAM W0 W1 R0A R1A R0B R1B 8 9 13 14 11 10 16 CLOCK DECODER 3­STATE A 3 WE 15 20 D0 19 D1 18 D2 17 D3 DATA INPUT 4X4 MEMORY Q0A Q1A Q2A Q3A 4 5 6 7 WORD A OUTPUT 22 Q0B 23 Q1B 2 Q2B 1 Q3B 21 3­STATE B WORD B OUTPUT VDD = PIN 24 VSS = PIN 12 REV 3 1/94 ©MOTOROLA CMOS LOGIC DATA Motorola, Inc. 1995 MC14580B 1 ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS) Characteristic Symbol VOL VDD Vdc 5.0 10 15 5.0 10 15 5.0 10 15 VIH 5.0 10 15 IOH Source 5.0 5.0 10 15 IOL 5.0 10 15 15 -- 5.0 10 15 5.0 10 15 ­ 3.0 ­ 0.64 ­ 1.6 ­ 4.2 0.64 1.6 4.2 -- -- -- -- -- -- -- -- -- -- -- -- ± 0.1 -- 5.0 10 20 ­ 2.4 ­ 0.51 ­ 1.3 ­ 3.4 0.51 1.3 3.4 -- -- -- -- -- ­ 4.2 ­ 0.88 ­ 2.25 ­ 8.8 0.88 2.25 8.8 ± 0.00001 5.0 0.010 0.020 0.030 -- -- -- -- -- -- -- ± 0.1 7.5 5.0 10 20 ­ 1.7 ­ 0.36 ­ 0.9 ­ 2.4 0.36 0.9 2.4 -- -- -- -- -- -- -- -- -- -- -- -- ± 1.0 -- 150 300 600 mAdc 3.5 7.0 11 -- -- -- 3.5 7.0 11 2.75 5.50 8.25 -- -- -- 3.5

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