HCF4585B 4-BIT MAGNITUDE COMPARATOR ■ ■ ■ ■ ■ ■ ■ ■ EXPANSION TO 8, 12, 16....4 N BITS BY CASCADING UNIT MEDIUM SPEED OPERATION : COMPARES TWO 4-BIT WORDS IN 180ns (Typ.) at 10V STANDARDIZED SYMMETRICAL OUTPUT CHARACTERISTICS QUIESCENT CURRENT SPECIFIED UP TO 20V 5V, 10V AND 15V PARAMETRIC RATINGS INPUT LEAKAGE CURRENT II = 100nA (MAX) AT VDD = 18V TA = 25°C 100% TESTED FOR QUIESCENT CURRENT MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES" DESCRIPTION HCF4585B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages. HCF4585B is a 4-bit magnitude comparator designed for use in computer and logic applications that require the comparison of two 4-bit words. This logic circuit determines whether one 4-bit word (Binary or BCD) is "less than", "equal to" or "greater than" a second 4-bit word. DIP SOP ORDER CODES PACKAGE TUBE T&R DIP SOP HCF4585BEY HCF4585BM1 HCF4585M013TR HCF4585B has eight comparing inputs (A3, B3 through A0, B0), three outputs (A<B, A=B, A>B) and three cascading inputs (A<B, A=B, A>B) that permit system designers to expand the comparator function to 8, 12, 16...4N bits. When a single HCF4585B is used, the cascading inputs are connected as follows: (A<B) = low, (A=B) = high, (A>B) = high. Cascading these units for comparison of more than 4 bits is accomplished as shown in Typical application. PIN CONNECTION October 2002 1/9 HCF4585B IINPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL 10, 7, 2, 15 11, 9, 1, 14 8 A0 to A3 B0 to B3 A>B, A=B, A<B A>B, A=B, A<B VSS 16 VDD 13, 3, 12 4, 6, 5 NAME AND FUNCTION Word A Inputs Word B Inputs Outputs Cascading Inputs Negative Supply Voltage Positive Supply Voltage TRUTH TABLE INPUTS OUTPUTS COMPARING A3, B3 A2, B2 A1, B1 A0, B0 A<B A=B A>B A<B A=B A>B A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 X A2 > B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 < B2 X X X A1 > B1 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A1 < B1 X X X X X A0 > B0 A0 = B0 A0 = B0 A0 = B0 A0 < B0 X X X X X X X L L H X X X X X X X X L H L X X X X H H H H H X X X X X X L L L L L L H H H H H L L L L L H L L L L L H H H H H L L L L L L > B3 = B3 = B3 = B3 = B3 = B3 = B3 = B3 = B3 = B3 < B3 X : Don’t Care FUNCTIONAL DIAGRAM 2/9 CASCADING HCF4585B LOGIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol VDD Parameter Supply Voltage VI DC Input Voltage II DC Input Current PD Value Unit -0.5 to +22 V -0.5 to VDD + 0.5 ± 10 V mA 200 100 mW mW Top Power Dissipation per Package Power Dissipation per Output Transistor Operating Temperature -55 to +125 °C Tstg Storage Temperature -65 to +150 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. All voltage values are referred to VSS pin voltage. RECOMMENDED OPERATING CONDITIONS Symbol VDD Parameter Supply Voltage VI Input Voltage Top Operating Temperature Value Unit 3 to 20 V 0 to VDD V -55 to 125 °C 3/9 HCF4585B DC SPECIFICATIONS Test Condition Symbol IL VOH VOL VIH VIL IOH IOL II CI Parameter Quiescent Current High Level Output Voltage Low Level Output Voltage 0/5 0/10 0/15 0/20 0/5 0/10 0/15 5/0 10/0 15/0 High Level Input Voltage Low Level Input Voltage Output Drive Current Output Sink Current Input Leakage Current Input Capacitance VO (V) VI (V) 0/5 0/5 0/10 0/15 0/5 0/10 0/15 0.5/4.5 1/9 1.5/13.5 4.5/0.5 9/1 13.5/1.5 2.5 4.6 9.5 13.5 0.4 0.5 1.5 0/18 Value |IO| VDD (µA) (V) 5 10 15 20 5 10 15 5 10 15 5 10 15 5 10 15 5 5 10 15 5 10 15 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Any Input TA = 25°C Min. Typ. Max. 0.04 0.04 0.04 0.08 5 10 20 100 4.95 9.95 14.95 -40 to 85°C -55 to 125°C Min. Min. 150 300 600 3000 4.95 9.95 14.95 0.05 0.05 0.05 18 Any Input 4.95 9.95 14.95 3.5 7 11 1.5 3 4 -3.2 -1 -2.6 -6.8 1 2.6 6.8 ±0.1 5 7.5 0.05 0.05 0.05 1.5 3 4 V V 1.5 3 4 -1.1 -0.36 -0.9 -2.4 0.36 0.9 2.4 ±1 µA V 3.5 7 11 -1.1 -0.36 -0.9 -2.4 0.36 0.9 2.4 ±10-5 Max. 150 300 600 3000 0.05 0.05 0.05 3.5 7 11 -1.36 -0.44 -1.1 -3.0 0.44 1.1 3.0 Max. Unit V mA mA ±1 µA pF The Noise Margin for both "1" and "0" level is: 1V min. with VDD =5V, 2V min. with VDD=10V, 2.5V min. with VDD=15V DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25°C, CL = 50pF, RL = 200KΩ, tr = tf = 20 ns) Test Condition Symbol Parameter tPHL tPLH Propagation Delay Time tPHL tPLH Propagation Delay Time tTHL tTLH Transition Time VDD (V) 5 10 15 5 10 15 5 10 15 Min. Comparing Inputs to Outputs Cascading Inputs to Outputs (*) Typical temperature coefficient for all VDD value is 0.3 %/°C. 4/9 Value (*) Unit Typ. Max. 300 125 80 200 80 60 100 50 40 600 250 160 400 160 120 200 100 80 ns ns ns HCF4585B TEST CIRCUIT CL = 50pF or equivalent (includes jig and probe capacitance) RL = 200KΩ RT = ZOUT of pulse generator (typically 50Ω) WAVEFORM : PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle) 5/9 HCF4585B TYPICAL APPLICATION TYPICAL SPEED CHARACTERISTICS OF A 12-BIT COMPARATOR 6/9 HCF4585B Plastic DIP-16 (0.25) MECHANICAL DATA mm. inch DIM. MIN. a1 0.51 B 0.77 TYP MAX. MIN. TYP. MAX. 0.020 1.65 0.030 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 17.78 0.700 F 7.1 0.280 I 5.1 0.201 L Z 3.3 0.130 1.27 0.050 P001C 7/9 HCF4585B SO-16 MECHANICAL DATA DIM. mm. MIN. TYP A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.2 a2 MAX. 0.003 0.007 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 9.8 E 5.8 10 0.385 6.2 0.228 0.393 0.244 e 1.27 0.050 e3 8.89 0.350 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 S 0.62 0.024 8 ˚ (max.) PO13H 8/9 HCF4585B 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 © 2002 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. © http://www.st.com 9/9