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PDF M74HC651 Data sheet ( Hoja de datos )

Número de pieza M74HC651
Descripción HC652 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE HC651 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE / INV.
Fabricantes ST Microelectronics 
Logotipo ST Microelectronics Logotipo



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M74HC651
M74HC652
HC651 OCTAL BUS TRANSCEIVER/REGISTER (3-STATE, INV.)
HC652 OCTAL BUS TRANSCEIVER/REGISTER (3-STATE)
. HIGH SPEED
fMAX = 73 MHz (TYP.) AT VCC = 5V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT TA = 25 °C
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
IOH= IOL = 6 mA (mIN.)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS651/652
DESCRIPTION
B1R
(Plastic Package)
M1R
(Micro Package)
ORDER CODES :
M74HCXXXM1R M74HCXXXB1R
PIN CONNECTIONS (top view)
M74HC651/652 are high speed CMOS OCTAL
BUS TRANSCEIVERS AND REGISTERS (3-
STATE), fabricated in silicon gate C2MOS technol-
ogy. They have the same high speed performance
of LSTTL combined with true CMOS low power con-
sumption. These devices consist of bus transceiver
circuits, D-type flip-flops, and control circuitry ar-
ranged for multiplexed transmission of data directly
from the input bus or from the internal storage reg-
isters. Enable GAB and GBA are provided to control
the transceiver functions.
Select AB and Select BA control pins are provided
to select whether real-time or stored data is trans-
fered. A low input level selects real-time data, and
a high selects stored data.
Data on the A or B bus, or both, can be stored in the
internal D flip-flops by low-to-high transitions at the
appropriate clock pins (CLOCK AB or CLOCK BA)
regardless of the select or enable control pins. When
select AB and select BA are in the real-time transfer
mode, it is also possible to store data without using
the internal D-type flip-flops by simultaneously en-
abling GAB and GBA. In this configuration each out-
put reinforces its input. Thus, when all other data
sources to the two sets of bus lines are at high im-
pedance, each set of bus lines will remain at its last
state. All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
INPUT AND OUTPUT EQUIVALENT CIRCUIT
GAB, GAB, CAB,
SAB, SBA, CBA
A, B
October 1993
1/12

1 page




M74HC651 pdf
M74HC651/652
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC Supply Voltage
-0.5 to +7
V
VI DC Input Voltage
-0.5 to VCC + 0.5
V
VO DC Output Voltage
-0.5 to VCC + 0.5
V
IIK DC Input Diode Current
IOK DC Output Diode Current
IO DC Output Source Sink Current Per Output Pin
± 20 mA
± 20 mA
± 35 mA
ICC or IGND DC VCC or Ground Current
± 70 mA
PD Power Dissipation
500 (*)
mW
Tstg Storage Temperature
-65 to +150
oC
TL Lead Temperature (10 sec)
300 oC
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.
(*) 500 mW: 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
VI
VO
Top
tr, tf
Parameter
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature:
Input Rise and Fall Time
VCC = 2 V
VCC = 4.5 V
VCC = 6 V
Value
2 to 6
0 to VCC
0 to VCC
-40 to +85
0 to 1000
0 to 500
0 to 400
Unit
V
V
V
oC
ns
5/12

5 Page





M74HC651 arduino
DIM.
A
a1
a2
b
b1
C
c1
D
E
e
e3
F
L
S
MIN.
0.10
0.35
0.23
15.20
10.00
7.40
0.50
SO24 MECHANICAL DATA
mm
TYP.
0.50
1.27
13.97
MAX.
2.65
0.20
2.45
0.49
0.32
MIN.
0.004
0.013
0.009
45° (typ.)
15.60
0.598
10.65
0.393
7.60 0.291
1.27 0.19
8° (max.)
L
M74HC651/652
inch
TYP.
0.020
0.05
0.55
MAX.
0.104
0.007
0.096
0.019
0.012
0.614
0.420
0.299
0.050
c1
b
24
e3
D
e
13
s
E
1 12
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