|
|
Número de pieza | M54HC191 | |
Descripción | 4 BIT SYNCHRONOUS UP/DOWN COUNTERS | |
Fabricantes | ST Microelectronics | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de M54HC191 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
No Preview Available ! M54/M74HC190
M54/M74HC191
4 BIT SYNCHRONOUS UP/DOWN COUNTERS
. HIGH SPEED
fMAX = 48 MHz (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT TA = 25 °C
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
IOH = IOL = 4 mA (MIN.)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS190/191
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HCXXXF1R M74HCXXXM1R
M74HCXXXB1R M74HCXXXC1R
PIN CONNECTIONS (top view)
DESCRIPTION
The M54/74HC190/191 are high speed CMOS 4-BIT
SYNCHRONOUS UP/DOWN COUNTERS fabri-
cated in silicon gate C2MOS technology.
They have the same high speed performance of
LSTTL combined with true CMOS low power con-
sumption.
State changes of the counter are synchronous with
the LOW-to-HIGH transition of the Clock Pulse input.
An asynchronous parallel load input overrides count-
ing and loads the data present on the DATA inputs into
the flip-flops, which makes it possible to use the cir-
cuits as programmable counters. A countenable input
serves as the carry/borrow input in multi-stage
counters. Control input, Down/Up, determines
whether a circuit counts up or down. A MAX/MIN out-
put and a Ripple Clock output provide overflow/under-
flow indication and make possible a variety of
methods for generating carry/borrow signals in multi-
stage counter applications.
All inputs are equipped with protection circuits against
static discharge and transient excess voltage.
NC =
No Internal
Connection
October 1992
1/14
1 page TIMING CHART (HC190)
M54/M74HC190/191
TIMING CHART (HC191)
5/14
5 Page DIM.
A
B
D
E
e3
F
G
H
L
M
N
P
Q
M54/M74HC190/191
Ceramic DIP16/1 MECHANICAL DATA
MIN.
0.38
2.29
0.4
1.17
0.22
0.51
7.8
mm
TYP.
3.3
17.78
MAX.
20
7
2.79
0.55
1.52
0.31
1.27
10.3
8.05
5.08
MIN.
0.015
0.090
0.016
0.046
0.009
0.020
0.307
inch
TYP.
0.130
0.700
MAX.
0.787
0.276
0.110
0.022
0.060
0.012
0.050
0.406
0.317
0.200
P053D
11/14
11 Page |
Páginas | Total 14 Páginas | |
PDF Descargar | [ Datasheet M54HC191.PDF ] |
Número de pieza | Descripción | Fabricantes |
M54HC190 | 4 BIT SYNCHRONOUS UP/DOWN COUNTERS | ST Microelectronics |
M54HC190 | 4 BIT SYNCHRONOUS UP/DOWN COUNTERS | ST Microelectronics |
M54HC190B1R | 4 BIT SYNCHRONOUS UP/DOWN COUNTERS | ST Microelectronics |
M54HC190B1R | 4 BIT SYNCHRONOUS UP/DOWN COUNTERS | ST Microelectronics |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |