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SN74AS877DW Folha de dados(PDF) 5 Page - Texas Instruments

Nome de Peças SN74AS877DW
Descrição Electrónicos  8-BIT UNIVERSAL TRANSCEIVER PORT CONTROLLERS
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

SN74AS877DW Folha de dados(HTML) 5 Page - Texas Instruments

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SN54AS877, SN74AS877
8BIT UNIVERSAL TRANCEIVER PORT CONTROLLERS
SDAS234 − D2661, DECEMBER 1982 − REVISED AUGUST 1985
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
5
absolute maximum ratings over free-air temperature range
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage:
All inputs
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O ports
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage applied to a disabled 3-state output
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range:
SN54AS877
−55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74AS877
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
−65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
recommended operating conditions
SN54AS877
SN74AS877
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
2
V
VIL
Low-level input voltage
0.8
0.8
V
IOH
High-level input voltage
A1-A8, B1-B8
−12
−15
mA
IOH
High-level input voltage
Q8
−2
−2
mA
IOL
Low-level input voltage
A1-A8, B1-B8
32
48
mA
Q8
20
20
fclock
Clock frequency
0
45
0
50
MHz
tw
Pulse duration, CLK
11
10
ns
A1-A8, B1-B8
5.5
5.5
tsu
Setup time before CLK
SERIN
5.5
5.5
ns
S0, S1, S2
5.5
5.5
A1-A8, B1-B8
0
0
th
Hold time, data after CLK
SERIN
0
0
ns
S0, S1, S2
0
0
ns
TA
Operating free-air temperature
−55
125
0
70
°C


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