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PDF MC74AC620 Data sheet ( Hoja de datos )
| Número de pieza | MC74AC620 | |
| Descripción | OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE OUTPUTS | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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MC74AC620
MC74ACT620
Octal Bidirectional Transceiver
with 3ĆState Outputs
The MC74AC620/74ACT620 octal bus transceiver is designed for asynchronous
two-way communication between data buses. The device transmits data from bus A
to bus B when T/R = HIGH, or from bus B to bus A when T/R = LOW. The enable
input can be used to disable the device so the buses are effectively isolated.
• Bidirectional Data Path
• A and B Outputs Sink 24 mA/Source –24 mA
• ′ACT620 Has TTL Compatible Inputs
VCC GBA B0 B1 B2 B3 B4 B5 B6 B7
20 19 18 17 16 15 14 13 12 11
OCTAL BIDIRECTIONAL
TRANSCEIVER WITH
3-STATE OUTPUTS
N SUFFIX
CASE 738-03
PLASTIC
1 2 3 4 5 6 7 8 9 10
GAB A0 A1 A2 A3 A4 A5 A6 A7 GND
PIN NAMES
A0–A7
GAB
GBA
B0–B7
Side A Inputs or 3-State Outputs
Enable B Outputs
Enable A Outputs
Side B Inputs or 3-State Outputs
TRUTH TABLE
GAB
GBA
HH
HH
LL
LL
H = HIGH Voltage Level
L = LOW Voltage Level
Applied
Inputs
H
L
H
L
Valid
Direction
I/P→O/P
A to B
A to B
B to A
B to A
Output
L
H
L
H
DW SUFFIX
CASE 751D-04
PLASTIC
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FACT DATA
5-1
1 page  
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MC74AC620 MC74ACT620
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
tPLH
Propagation Delay
An to Bn or Bn to An
tPHL
Propagation Delay
An to Bn or Bn to An
tPZH
Output Enable Time
tPZL
Output Enable Time
tPHZ
Output Disable Time
tPLZ
Output Disable Time
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
Min Typ Max
5.0 1.5 3.5 7.5
5.0 1.5 3.5 8.0
5.0 1.5 6.0 10.0
5.0 1.5 6.5 10.0
5.0 1.5 6.0 10.0
5.0 1.5 6.5 10.0
74ACT
TA = –40°C
to +85°C
CL = 50 pF
Min Max
1.0 8.5
1.0 9.0
1.0 11.0
1.0 12.0
1.0 11.0
1.0 11.0
Unit
ns
ns
ns
ns
ns
ns
Fig.
No.
3-5
3-5
3-7
3-8
3-7
3-8
CAPACITANCE
Symbol
Parameter
CIN
CI/O
CPD
Input Capacitance
Input/Output Capacitance
Power Dissipation Capacitance
Value
Typ
4.5
15
45
Unit
pF
pF
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
VCC = 5.0 V
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FACT DATA
5-5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet MC74AC620.PDF ] | |
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