HD74HC682, HD74HC684
8-bit Magnitude Comparator
REJ03D0642-0200 (Previous ADE-205-528) Rev.2.00 Mar 30, 2006
Description
These magnitude comparators perform comparisons of two eight-bit binary or BCD words. All types provide P=Q outputs and provide P>Q outputs. The HD74HC682 features 20 k pullup termination resistors on the Q inputs for analog or switch data.
Type HD74HC682 HD74HC684 P=Q Yes Yes P>Q Yes Yes Output Enable No No 20 k Pullup Yes No
Features
* High Speed Operation * High Output Current: Fanout of 10 LSTTL Loads * Wide Operating Voltage: VCC = 2 to 6 V * Low Input Current: 1 A max * Low Quiescent Supply Current: ICC (static) = 4 A max (Ta = 25C) * Ordering Information
Part Name HD74HC682P HD74HC684P HD74HC682RPEL HD74HC684RPEL Package Type DILP-20 pin SOP-20 pin (JEDEC) Package Code (Previous Code) PRDP0020AC-B (DP-20NEV) PRSP0020DC-A (FP-20DBV) Package Abbreviation P RP -- EL (1,000 pcs/reel) Taping Abbreviation (Quantity)
Function Table
Input Data P, Q P=Q P>Q PQ H L H
Note: 1. The PQ Outputs to a 2-input NAND gate. H : high level L : low level
Rev.2.00 Mar 30, 2006 page 1 of 6
HD74HC682, HD74HC684
Pin Arrangement
P>Q P0 Q0 P1 Q1 P2 Q2 P3 Q3 1 2 3 4 5 6 7 8 9 20 VCC 19 P=Q 18 Q7 17 P7 16 Q6 15 P6 14 Q5 13 P5 12 Q4 11 P4 (Top view)
GND 10
Logic Diagram
P0 Q0 P1 Q1 P2 Q2 P3 Q3 P4 Q4 P5 Q5 P6 Q6 P7 Q7 VCC P>Q P=Q
VCC
VCC
Rev.2.00 Mar 30, 2006 page 2 of 6
HD74HC682, HD74HC684
Absolute Maximum Ratings
Item Supply voltage range Input / Output voltage Input / Output diode current Output current VCC, GND current Power dissipation Symbol VCC VIN, VOUT IIK, IOK IOUT ICC or IGND PT Ratings -0.5 to 7.0 -0.5 to VCC +0.5 20 25 50 500 Unit V V mA mA mA mW
Storage temperature Tstg -65 to +150 C Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time.
Recommended Operating Conditions
Item Supply voltage Input / Output voltage Operating temperature Input rise / fall time Note:
*1
Symbol VCC VIN, VOUT Ta tr , tf
Ratings 2 to 6 0 to VCC -40 to 85 0 to 1000 0 to 500
Unit V V C ns
Conditions
VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V
0 to 400 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics.
Rev.2.00 Mar 30, 2006 page 3 of 6
HD74HC682, HD74HC684
Electrical Characteristics
Ta = 25C Item Input voltage Symbol VCC (V) VIH 2.0 4.5 6.0 VIL 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 VOL 2.0 4.5 6.0 4.5 Input current (HC684) Quiescent supply current (HC684) Input current (HD682) Quiescent supply current (HC682) Iin ICC Iin ICC 6.0 6.0 6.0 6.0 6.0 Min 1.5 3.15 4.2 -- -- -- 1.9 4.4 5.9 4.18 5.68 -- -- -- -- -- -- -- -- -- -- -- Typ -- -- -- -- -- -- 2.0 4.5 6.0 -- -- 0.0 0.0 0.0 -- -- -- -- -- -- -- -- Max -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.26 0.26 0.1 4.0 0.1 -0.6 4.8 4.0 Ta = -40 to+85C Min 1.5 3.15 4.2 -- -- -- 1.9 4.4 5.9 4.13 5.63 -- -- -- -- -- -- -- -- -- -- -- Max -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.33 0.33 1.0 40 1.0 -0.7 5.6 40 A A A V IOH = -4 mA IOH = -5.2 mA Vin = VIH or VIL IOL = 20 A V Unit V Test Conditions
Output voltage
VOH
V
Vin = VIH or VIL IOH = -20 A
IOL = 4 mA IOL = 5.2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 A Vin = VCC
mA Iin = GND mA Qn = GND, other inputs = VCC or GND Iout = 0 A A Qn = VCC, other inputs = VCC or GND Iout = 0 A
Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25C Item Propagation delay time Symbol VCC (V) tPLH tPHL tPLH tPHL Output rise/fall time Input capacitance tTLH tTHL Cin 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 -- Min -- -- -- -- -- -- -- -- -- -- Typ -- -- -- -- -- -- -- -- -- 5 Max 175 35 30 200 40 34 60 12 10 10 Ta = -40 to +85C Min -- -- -- -- -- -- -- -- -- -- Max 220 44 37 250 50 43 75 15 13 10 pF ns P or Q to P>Q Unit ns Test Conditions P or Q to P=Q
ns
Rev.2.00 Mar 30, 2006 page 4 of 6
HD74HC682, HD74HC684
Test Circuit
VCC VCC Output
See Function Table
P0 P7 P=Q Output P>Q CL = 50 pF CL = 50 pF
Input Pulse Generator Zout = 50
Q0 Q7
Note : 1. CL includes probe and jig capacitance.
Waveforms
tr 90 % 50 % 10 % t PLH 90 % Same-phase output 50 % 10 % t TLH 90 % 50 % 10 % t PHL 90 % 50 % 10 % t THL VOH VOL tf VCC 0V
Input
t PHL 90 % Inverse-phase output
t PLH
90 % 50 % 10 % t THL 50 % 10 % t TLH
VOH VOL
Notes: 1. Input waveform: PRR 1 MHz, Zo = 50 , tr 6 ns, tf 6 ns 2. The output are measured one at a time with one transition per measurement.
Rev.2.00 Mar 30, 2006 page 5 of 6
HD74HC682, HD74HC684
Package Dimensions
JEITA Package Code P-DIP20-6.3x24.5-2.54 RENESAS Code PRDP0020AC-B Previous Code DP-20NEV MASS[Typ.] 1.26g
D
20
11
1 0.89 b3
10
Z
A1
A
E
Reference Symbol
Dimension in Millimeters
Min
e
bp
e1
c
( Ni/Pd/Au plating )
e1 D E A A1 bp b3 c e Z L
Nom Max 7.62 24.50 25.40 6.30 7.00 5.08
L
0.51 0.40 0.48 0.56 1.30 0.19 0.25 0.31 0 15 2.29 2.54 2.79 1.27 2.54
JEITA Package Code P-SOP20-7.5x12.8-1.27
RENESAS Code PRSP0020DC-A
Previous Code FP-20DBV
MASS[Typ.] 0.52g
*1
D
F 11
20
NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" @ DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT @ INCLUDE TRIM OFFSET.
bp
HE E
*2
Index mark
Terminal cross section ( Ni/Pd/Au plating )
1 Z e
*3
c
Reference Symbol
Dimension in Millimeters
10 bp x M L1
A1
y
L
Detail F
D E A2 A1 A bp b1 c c1 HE e x y Z L L1
Min Nom Max 12.80 13.2 7.50 0.10 0.20 0.30 2.65 0.34 0.40 0.46 0.20 0.25 0.30 0 8 10.00 10.40 10.65 1.27 0.12 0.15 0.935 0.40 0.70 1.27 1.45
Rev.2.00 Mar 30, 2006 page 6 of 6
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