m74hc280 STMicroelectronics, m74hc280 Datasheet

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m74hc280

Manufacturer Part Number
m74hc280
Description
9 Bit Parity Generator
Manufacturer
STMicroelectronics
Datasheet

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DESCRIPTION
The M74HC280 is an high speed CMOS 9-BIT
PARITY GENERATOR fabricated with silicon gate
C
It is composed of nine data inputs (A to I) and odd/
even parity outputs ( ODD and EVEN). The nine
data inputs control the output conditions. When
the number of high level input is odd,
output is kept high and EVEN output low.
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
2
MOS technology.
HIGH SPEED :
t
LOW POWER DISSIPATION:
I
HIGH NOISE IMMUNITY:
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
WIDE OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 280
PD
CC
PLH
OH
NIH
CC
= 22ns (TYP.) at V
=4 A(MAX.) at T
| = I
(OPR) = 2V to 6V
= V
t
PHL
OL
NIL
= 4mA (MIN)
= 28 % V
A
CC
=25°C
CC
(MIN.)
= 6V
ODD
ORDER CODES
Conversely, when the output is even,
output is kept high and ODD 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.
PACKAGE
TSSOP
9 BIT PARITY GENERATOR
SOP
DIP
DIP
M74HC280M1R
M74HC280B1R
TUBE
SOP
M74HC280
M74HC280RM13TR
M74HC280TTR
T & R
TSSOP
EVEN
1/9

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m74hc280 Summary of contents

Page 1

... V (OPR PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 280 DESCRIPTION The M74HC280 is an high speed CMOS 9-BIT PARITY GENERATOR fabricated with silicon gate 2 C MOS technology composed of nine data inputs ( and odd/ even parity outputs ( ODD and EVEN). The nine data inputs control the output conditions ...

Page 2

... M74HC280 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE NUMBER OF INPUTS THAT ARE HIGH LOGIC DIAGRAM 2/9 PIN DESCRIPTION PIN 10, 11, 12, 13 SYMBOL NAME AND FUNCTION EVEN Parity Outputs Data Inputs ...

Page 3

... Supply Voltage CC V Input Voltage I V Output Voltage O T Operating Temperature op Input Rise and Fall Time Parameter Parameter 6.0V CC M74HC280 Value Unit - 500(*) mW -65 to +150 °C 300 °C ...

Page 4

... M74HC280 DC SPECIFICATIONS Symbol Parameter V V High Level Input IH Voltage V Low Level Input IL Voltage V High Level Output OH Voltage V Low Level Output OL Voltage I Input Leakage I Current I Quiescent Supply CC Current AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH ...

Page 5

... TEST CIRCUIT C = 50pF or equivalent (includes jig and probe capacitance pulse generator (typically OUT WAVEFORM 1: PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle) M74HC280 5/9 ...

Page 6

... M74HC280 DIM. MIN. a1 0. 1.27 6/9 Plastic DIP-14 MECHANICAL DATA mm. TYP MAX. 1.65 0.5 0.25 20 8.5 2.54 15.24 7.1 5.1 3.3 2.54 inch MIN. TYP. MAX. 0.020 0.055 0.065 0.020 0.010 0.787 0.335 0.100 0.600 0.280 0.201 0.130 0.050 0.100 P001A ...

Page 7

... 8. 3.8 G 4 TYP MAX. MIN. 1.75 0.2 0.003 1.65 0.46 0.013 0.25 0.007 0.5 45° (typ.) 8.75 0.336 6.2 0.228 1.27 7.62 4.0 0.149 5.3 0.181 1.27 0.019 0.68 8° (max.) M74HC280 inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010 0.019 0.344 0.244 0.050 0.300 0.157 0.208 0.050 0.026 PO13G 7/9 ...

Page 8

... M74HC280 DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 4.9 E 6 0° PIN 1 IDENTIFICATION 1 8/9 TSSOP14 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 1 1.05 0.30 0.20 5 5.1 6.4 6.6 4.4 4.48 0.65 BSC 8° 0.60 0. inch MIN. TYP. MAX. 0.047 0.002 0.004 0.006 0.031 0.039 0.041 0.007 0.012 0.004 0.0089 0.193 0.197 0.201 ...

Page 9

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