STMicroelectronics 的 M74HC280 规格书

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■HIGH SPEED :
tPD = 22ns (TYP.) at VCC = 6V
■LOW POWER DISSIPATION:
ICC =4µA(MAX.) at TA=25°C
■HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
■SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
■BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
■WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
■PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 280
DESCRIPTION
The M74HC280 is an high speed CMOS 9-BIT
PARITY GENERATOR fabricated with silicon gate
C2MOS technology.
It is composed of nine data inputs (A to I) and odd/
even parity outputs (ΣODD and ΣEVEN). The nine
data inputs control the output conditions. When
the number of high level input is odd, ΣODD
output is kept high and ΣEVEN output low.
Conversely, when the output is even, ΣEVEN
output is kept high and ΣODD low.
The IC generates either odd or even parity making
it flexible application. The word-length capability is
easily expanded by cascading.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC280
9 BIT PARITY GENERATOR
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE TUBE T & R
DIP M74HC280B1R
SOP M74HC280M1R M74HC280RM13TR
TSSOP M74HC280TTR
TSSOPDIP SOP
M74HC280
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INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE
LOGIC DIAGRAM
PIN No SYMBOL NAME AND FUNCTION
5, 6 ΣEVEN
ΣΟDD Parity Outputs
8, 9, 10, 11,
12, 13, 1, 2,
4
A to I Data Inputs
3 NC No Connection
7 GND Ground (0V)
14 VCC Positive Supply Voltage
NUMBER OF INPUTS A - I THAT ARE HIGH OUTPUTS
ΣEVEN ΣODD
0, 2, 4, 6, 8 H L
1, 3, 5, 7, 9 L H
M74HC280
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ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
VCC Supply Voltage -0.5 to +7 V
VIDC Input Voltage -0.5 to VCC + 0.5 V
VODC Output Voltage -0.5 to VCC + 0.5 V
IIK DC Input Diode Current ± 20 mA
IOK DC Output Diode Current ± 20 mA
IODC Output Current ± 25 mA
ICC or IGND DC VCC or Ground Current ± 50 mA
PDPower Dissipation 500(*) mW
Tstg Storage Temperature -65 to +150 °C
TLLead Temperature (10 sec) 300 °C
Symbol Parameter Value Unit
VCC Supply Voltage 2 to 6 V
VIInput Voltage 0 to VCC V
VOOutput Voltage 0 to VCC V
Top Operating Temperature -55 to 125 °C
tr, tf
Input Rise and Fall Time VCC = 2.0V 0 to 1000 ns
VCC = 4.5V 0 to 500 ns
VCC = 6.0V 0 to 400 ns
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M74HC280
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DC SPECIFICATIONS
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
CAPACITIVE CHARACTERISTICS
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
Symbol Parameter
Test Condition Value
Unit
VCC
(V)
TA = 25°C -40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
VIH High Level Input
Voltage 2.0 1.5 1.5 1.5
V4.5 3.15 3.15 3.15
6.0 4.2 4.2 4.2
VIL Low Level Input
Voltage 2.0 0.5 0.5 0.5
V4.5 1.35 1.35 1.35
6.0 1.8 1.8 1.8
VOH High Level Output
Voltage 2.0 IO=-20 µA1.9 2.0 1.9 1.9
V
4.5 IO=-20 µA4.4 4.5 4.4 4.4
6.0 IO=-20 µA5.9 6.0 5.9 5.9
4.5 IO=-4.0 mA 4.18 4.31 4.13 4.10
6.0 IO=-5.2 mA 5.68 5.8 5.63 5.60
VOL Low Level Output
Voltage 2.0 IO=20 µA0.0 0.1 0.1 0.1
V
4.5 IO=20 µA0.0 0.1 0.1 0.1
6.0 IO=20 µA0.0 0.1 0.1 0.1
4.5 IO=4.0 mA 0.17 0.26 0.33 0.40
6.0 IO=5.2 mA 0.18 0.26 0.33 0.40
IIInput Leakage
Current 6.0 VI = VCC or GND ± 0.1 ± 1 ± 1 µA
ICC Quiescent Supply
Current 6.0 VI = VCC or GND 44080µA
Symbol Parameter
Test Condition Value
Unit
VCC
(V)
TA = 25°C -40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
tTLH tTHL Output Transition
Time 2.0 30 75 95 110
ns4.5 8151922
6.0 7131619
t
PLH tPHL Propagation Delay
Time (Input to
ΣEVEN,ΣODD)
2.0 80 200 250 290
ns4.5 26 40 50 58
6.0 22 34 43 49
Symbol Parameter
Test Condition Value
Unit
VCC
(V)
TA = 25°C -40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
CIN Input Capacitance 5.0 5101010pF
C
PD Power Dissipation
Capacitance (note
1) 5.0 61 pF
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M74HC280
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TEST CIRCUIT
CL = 50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
WAVEFORM 1: PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
a1 h1 E]
M74HC280
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DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
a1 0.51 0.020
B 1.39 1.65 0.055 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 15.24 0.600
F 7.1 0.280
I 5.1 0.201
L 3.3 0.130
Z 1.27 2.54 0.050 0.100
Plastic DIP-14 MECHANICAL DATA
P001A
:4;
M74HC280
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DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 1.75 0.068
a1 0.1 0.2 0.003 0.007
a2 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 8.55 8.75 0.336 0.344
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 7.62 0.300
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 0.68 0.026
S8° (max.)
SO-14 MECHANICAL DATA
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M74HC280
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DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 1.2 0.047
A1 0.05 0.15 0.002 0.004 0.006
A2 0.8 1 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.0089
D 4.9 5 5.1 0.193 0.197 0.201
E 6.2 6.4 6.6 0.244 0.252 0.260
E1 4.3 4.4 4.48 0.169 0.173 0.176
e 0.65 BSC 0.0256 BSC
K0° 8°0° 8°
L 0.45 0.60 0.75 0.018 0.024 0.030
TSSOP14 MECHANICAL DATA
cE
b
A2
A
E1
D
1
PIN 1 IDENTIFICATION
A1 L
K
e
0080337D
M74HC280
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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
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