M74HC221AM1R STMicroelectronics, M74HC221AM1R Datasheet

M74HC221AM1R

Manufacturer Part Number
M74HC221AM1R
Description
Manufacturer
STMicroelectronics
Datasheet

Specifications of M74HC221AM1R

Logic Family
HC
High Level Output Current
-5.2mA
Low Level Output Current
5.2mA
Quiescent Current
4uA
Number Of Elements
2
Operating Temperature Classification
Military
Operating Supply Voltage (max)
6V
Operating Supply Voltage (typ)
2.5/3.3/5V
Operating Temperature (max)
125C
Technology
CMOS
Abs. Propagation Delay Time
355ns
Operating Supply Voltage (min)
2V
Lead Free Status / RoHS Status
Supplier Unconfirmed
DESCRIPTION
The M74HC221A is an high speed CMOS
MONOSTABLE MULTIVIBRATOR fabricated with
silicon gate C
There are two trigger inputs, A INPUT (negative
edge) and B INPUT (positive edge).
Triggering on the B input occurs at a particular
voltage threshold and is not related to rise and fall
time of the applied pulse. The device may also be
trigger by using the CLR input (positive edge)
because of the Schimtt-trigger input; after
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
HIGH SPEED :
t
LOW POWER DISSIPATION:
STAND BY STATE :
I
ACTIVE STATE :
I
HIGH NOISE IMMUNITY:
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
WIDE OPERATING VOLTAGE RANGE:
V
WIDE OUTPUT PULSE WIDTH RANGE :
t
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 221
PD
CC
CC
PLH
WOUT
OH
NIH
CC
=4 A (MAX.) at T
=700 A (TYP.) at V
= 24 ns (TYP.) at V
| = I
(OPR) = 2V to 6V
= V
t
= 150 ns ~ 60 s OVER AT V
PHL
OL
NIL
= 4mA (MIN)
2
MOS technology.
= 28 % V
A
CC
=25°C
CC
CC
(MIN.)
= 6V
= 6V
DUAL MONOSTABLE MULTIVIBRATOR
CC
= 4.5 V
ORDER CODES
triggering
MONOSTABLE STATE for the time period
determined by the external resistor Rx and
capacitor Cx. Taking CLR low breaks this
MONOSTABLE STATE. If the next trigger pulse
occurs during the MONOSTABLE period it makes
the MONOSTABLE period longer.
Limit for values of Cx and Rx :
Cx : NO LIMIT
Rx : V
K 1
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PACKAGE
TSSOP
SOP
DIP
V
cc
cc
DIP
< 3.0V 5K
> 3.0V 1K
M74HC221AM1R M74HC221ARM13TR
M74HC221AB1R
the
TUBE
output
to 1M
M74HC221A
to 1M
SOP
M74HC221ATTR
maintains
T & R
TSSOP
1/14
the

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M74HC221AM1R Summary of contents

Page 1

... MONOSTABLE period it makes the MONOSTABLE period longer. Limit for values of Cx and LIMIT < 3. > 3. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M74HC221A SOP TSSOP TUBE T & R M74HC221AB1R M74HC221AM1R M74HC221ARM13TR M74HC221ATTR the output maintains the 1/14 ...

Page 2

M74HC221A INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUTS Don’t Care (*) : Except for monostable period 2/14 PIN DESCRIPTION PIN ...

Page 3

SYSTEM DIAGRAM This logic diagram has not be used to estimate propagation delays TIMING CHART M74HC221A 3/14 ...

Page 4

M74HC221A BLOCK DIAGRAM (1) Cx, Rx, Dx are external components. ( clamping diode. The external capacitor is charged to Vcc in the stand-by-state, i.e. no trigger. When the supply voltage is turned off scharged ...

Page 5

ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current ...

Page 6

M74HC221A DC SPECIFICATIONS Symbol Parameter V V High Level Input IH Voltage V Low Level Input IL Voltage V High Level Output OH Voltage (Q, Q Output) V Low Level Output OL Voltage (Q, Q Output) I Input Leakage I ...

Page 7

AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH PHL Time ( Propagation Delay PLH PHL Time(CLR TRIGGER - Propagation ...

Page 8

M74HC221A TEST CIRCUIT C = 50pF or equivalent (includes jig and probe capacitance pulse generator (typically OUT WAVEFORM 1: PROPAGATION DELAY TIME, MINIMUM PULSE WIDTH (A, B), OUTPUT PULSE WIDTH (f=1MHz; 50% ...

Page 9

WAVEFORM 2 : MINIMUM PULSE WIDTH (CLR), PROPAGATION DELAY (f=1MHz; 50% duty cycle) WAVEFORM 3 : MINIMUM REMOVAL TIME (CLR TO A,B) (f=1MHz; 50% duty cycle) M74HC221A 9/14 ...

Page 10

M74HC221A WAVEFORM 4 : MINIMUM REMOVAL TIME (CLR TO A,B) (f=1MHz; 50% duty cycle) 10/14 ...

Page 11

Plastic DIP-16 (0.25) MECHANICAL DATA mm. DIM. MIN. a1 0. 17. TYP MAX. MIN. 0.020 1.65 0.030 0.5 0.25 20 8.5 2.54 7.1 5.1 3.3 1.27 M74HC221A inch ...

Page 12

M74HC221A DIM. MIN 0 0. 9 3.8 G 4 12/14 SO-16 MECHANICAL DATA mm. TYP MAX. 1.75 0.2 1.65 0.46 0.25 0.5 ...

Page 13

TSSOP16 MECHANICAL DATA DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 4.9 E 6 0° PIN 1 IDENTIFICATION 1 mm. TYP MAX. 1.2 0.15 1 1.05 ...

Page 14

... 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 ...

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