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SN74ACT2235-30FNR Folha de dados(PDF) 8 Page - Texas Instruments

Nome de Peças SN74ACT2235-30FNR
Descrição Electrónicos  1024 횞 9 횞 2 ASYNCHRONOUS BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
Logo TI - Texas Instruments

SN74ACT2235-30FNR Folha de dados(HTML) 8 Page - Texas Instruments

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SN74ACT2235
1024
× 9 × 2
ASYNCHRONOUS BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY
SCAS148F – DECEMBER 1990 – REVISED JUNE 2003
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
SELECT-MODE CONTROL
CONTROL
OPERATION
SAB
SBA
A BUS
B BUS
L
L
Real-time B to A bus
Real-time A to B bus
L
H
FIFO B to A bus
Real-time A to B bus
H
L
Real-time B to A bus
FIFO A to B bus
H
H
FIFO B to A bus
FIFO A to B bus
OUTPUT-ENABLE CONTROL
CONTROL
OPERATION
GAB
GBA
A BUS
B BUS
H
H
A bus enabled
B bus enabled
L
H
A bus enabled
Isolation/input to B bus
H
L
Isolation/input to A bus
B bus enabled
L
L
Isolation/input to A bus
Isolation/input to B bus
Figure 2. Bus-Management Functions (Continued)
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI: Control inputs
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O ports
–0.5 V to 5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to a disabled 3-state output
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 1): FN package
46
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAG package
58
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PM package
67
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum junction temperature, TJ
150
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions
ACT2235-20
ACT2235-30
ACT2235-40
ACT2235-60
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
4.5
5.5
4.5
5.5
4.5
5.5
4.5
5.5
V
VIH
High-level input voltage
2
2
2
2
V
VIL
Low-level input voltage
0.8
0.8
0.8
0.8
V
IOH
High level output current
A or B ports
–8
–8
–8
–8
mA
IOH
High-level output current
Status flags
–8
–8
–8
–8
mA
IOL
Low level output current
A or B ports
16
16
16
16
mA
IOL
Low-level output current
Status flags
8
8
8
8
mA
TA
Operating free-air temperature
0
70
0
70
0
70
0
70
°C


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