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 HCF4585B
4-BIT MAGNITUDE COMPARATOR
s
s
s
s
s s
s s
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 = 25C 100% TESTED FOR QUIESCENT CURRENT MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES"
DIP
SOP
ORDER CODES
PACKAGE DIP SOP TUBE HCF4585BEY HCF4585BM1 T&R HCF4585M013TR
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.
HCF4585B has eight comparing inputs (A3, B3 through A0, B0), three outputs (AB) and three cascading inputs (AB) 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: (AB) = high. Cascading these units for comparison of more than 4 bits is accomplished as shown in Typical application.
PIN CONNECTION
October 2002
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HCF4585B
IINPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 10, 7, 2, 15 11, 9, 1, 14 13, 3, 12 4, 6, 5 8 16 SYMBOL A0 to A3 B0 to B3 A>B, A=B, AB, A=B, ATRUTH TABLE
INPUTS OUTPUTS COMPARING A3, B3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 > B3 = B3 = B3 = B3 = B3 = B3 = B3 = B3 = B3 = B3 < B3 A2, B2 X A2 > B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 < B2 X A1, B1 X X A1 > B1 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A1 < B1 X X A0, B0 X X X A0 > B0 A0 = B0 A0 = B0 A0 = B0 A0 < B0 X X X AB H H H H H X X X X X X AB H H H H H L L L L L L
X : Don't Care
FUNCTIONAL DIAGRAM
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HCF4585B
LOGIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol VDD VI II PD Top Tstg Supply Voltage DC Input Voltage DC Input Current Power Dissipation per Package Power Dissipation per Output Transistor Operating Temperature Storage Temperature Parameter Value -0.5 to +22 -0.5 to VDD + 0.5 10 200 100 -55 to +125 -65 to +150 Unit V V mA mW mW C 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 VI Top Supply Voltage Input Voltage Operating Temperature Parameter Value 3 to 20 0 to VDD -55 to 125 Unit V V C
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HCF4585B
DC SPECIFICATIONS
Test Condition Symbol Parameter VI (V) 0/5 0/10 0/15 0/20 0/5 0/10 0/15 5/0 10/0 15/0 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 VO (V) |IO| VDD (A) (V) 5 10 15 20 5 10 15 5 10 15 5 10 15 5 10 15 5 5 10 15 5 10 15 18 TA = 25C Min. Typ. 0.04 0.04 0.04 0.08 4.95 9.95 14.95 0.05 0.05 0.05 3.5 7 11 1.5 3 4 -1.36 -0.44 -1.1 -3.0 0.44 1.1 3.0 -3.2 -1 -2.6 -6.8 1 2.6 6.8 10-5 5 -1.1 -0.36 -0.9 -2.4 0.36 0.9 2.4 3.5 7 11 1.5 3 4 -1.1 -0.36 -0.9 -2.4 0.36 0.9 2.4 Max. 5 10 20 100 4.95 9.95 14.95 0.05 0.05 0.05 3.5 7 11 1.5 3 4 Value -40 to 85C Min. Max. 150 300 600 3000 4.95 9.95 14.95 0.05 0.05 0.05 -55 to 125C Min. Max. 150 300 600 3000 Unit
IL
Quiescent Current
A
VOH
High Level Output Voltage Low Level Output Voltage High Level Input Voltage Low Level Input Voltage Output Drive Current
VOL
VIH
VIL
IOH
IOL
Output Sink Current Input Leakage Current Input Capacitance
0/5 0/5 0/10 0/15 0/5 0/10 0/15 0/18
<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1
V
V
V
V
mA
mA
II
Any Input Any Input
0.1
7.5
1
1
A
pF
CI
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 = 25C, CL = 50pF, RL = 200K, tr = tf = 20 ns)
Test Condition Symbol Parameter VDD (V) 5 10 15 5 10 15 5 10 15 Comparing Inputs to Outputs Min. Value (*) Typ. 300 125 80 200 80 60 100 50 40 Max. 600 250 160 400 160 120 200 100 80 ns Unit
tPHL tPLH Propagation Delay Time tPHL tPLH Propagation Delay Time tTHL tTLH Transition Time
Cascading Inputs to Outputs
ns
ns
(*) Typical temperature coefficient for all VDD value is 0.3 %/C.
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HCF4585B
TEST CIRCUIT
CL = 50pF or equivalent (includes jig and probe capacitance) RL = 200K RT = ZOUT of pulse generator (typically 50)
WAVEFORM : PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle)
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HCF4585B
TYPICAL APPLICATION TYPICAL SPEED CHARACTERISTICS OF A 12-BIT COMPARATOR
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HCF4585B
Plastic DIP-16 (0.25) MECHANICAL DATA
mm. DIM. MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.27 8.5 2.54 17.78 7.1 5.1 0.130 0.050 0.51 0.77 0.5 0.25 20 0.335 0.100 0.700 0.280 0.201 1.65 TYP MAX. MIN. 0.020 0.030 0.020 0.010 0.787 0.065 TYP. MAX. inch
P001C
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HCF4585B
SO-16 MECHANICAL DATA
DIM. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 9.8 5.8 1.27 8.89 4.0 5.3 1.27 0.62 8 (max.) 0.149 0.181 0.019 10 6.2 0.35 0.19 0.5 45 (typ.) 0.385 0.228 0.050 0.350 0.157 0.208 0.050 0.024 0.393 0.244 0.1 mm. MIN. TYP MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.003 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010
PO13H
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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. (c) The ST logo is a registered trademark of STMicroelectronics (c) 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. (c) http://www.st.com
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