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SN74BCT648NT データシート(PDF) 6 Page - Texas Instruments

部品番号 SN74BCT648NT
部品情報  OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
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SN74BCT648NT データシート(HTML) 6 Page - Texas Instruments

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SN54BCT648, SN74BCT648
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3STATE OUTPUTS
SCBS050B − MAY 1990 − REVISED APRIL 1994
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251−1443
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54BCT648
SN74BCT648
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = −18 mA
−1.2
−1.2
V
IOH = − 3 mA
2.4
3.3
2.4
3.3
VOH
VCC = 4.5 V
IOH = −12 mA
2
3.2
V
VOH
VCC = 4.5 V
IOH = −15 mA
2
3.1
V
VOL
VCC = 4.5 V
IOL = 48 mA
0.38
0.55
V
VOL
VCC = 4.5 V
IOL = 64 mA
0.42
0.55
V
II
A or B port
VCC = 5.5 V,
VI = 5.5 V
1
1
mA
II
Control inputs
VCC = 5.5 V,
VI = 5.5 V
1
1
mA
IIH‡
A or B port
VCC = 5.5 V,
VI = 2.7 V
70
70
A
IIH‡
Control inputs
VCC = 5.5 V,
VI = 2.7 V
20
20
µA
IIL‡
A or B port
VCC = 5.5 V,
VI = 0.5 V
− 0.7
− 0.7
mA
IIL‡
Control inputs
VCC = 5.5 V,
VI = 0.5 V
− 0.7
− 0.7
mA
IOS§
VCC = 5.5 V,
VO = 0
− 100
− 225
− 100
− 225
mA
ICCL
A or B port
VCC = 5.5 V,
VI = GND
42
66
42
66
mA
ICCH
A or B port
VCC = 5.5 V,
VI = 4.5 V
8
13
8
13
mA
ICCZ
A or B port
VCC = 5.5 V,
VI = GND
10
16
10
16
mA
Ci
Control inputs
VCC = 5 V,
VI = 2.5 V or 0.5 V
6
6
pF
Cio
A or B port
VCC = 5 V,
VO = 2.5 V or 0.5 V
12
12
pF
† All typical values are at VCC = 5 V, TA = 25°C.
‡ For I/O ports, the parameters IIH and IIL include the off-state output current.
§ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
VCC = 5 V,
TA = 25°C
SN54BCT648
SN74 BCT648
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
fclock
Clock frequency
0
67
0
67
0
67
MHz
tw
Pulse duration
CLK high
7.5
4.3
7.5
ns
tw
Pulse duration
CLK low
7.5
7.5
7.5
ns
tsu
Setup time, A or B before CLK
6
6
6
ns
th
Hold time, A or B after CLK
1
1
1
ns


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