File name 4580.pdfMOTOROLA
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 |