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CD74FCT646M Scheda tecnica(PDF) 5 Page - Texas Instruments

Il numero della parte CD74FCT646M
Spiegazioni elettronici  BiCMOS OCTAL BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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CD74FCT646M Scheda tecnica(HTML) 5 Page - Texas Instruments

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CD74FCT646
BiCMOS OCTAL BUS TRANSCEIVER AND REGISTER
WITH 3-STATE OUTPUTS
SCBS735A – JULY 2000 – REVISED JULY 2000
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
DC supply voltage range, VCC
–0.5 V to 6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC input clamp current, IIK (VI < –0.5 V)
–20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC output clamp current, IOK (VO < –0.5 V)
–50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC output sink current per output pin, IOL
70 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC output source current per output pin, IOH
–30 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC, ICC
140 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through GND
528 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 1): EN package
67
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
M package
46
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SM package
61
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 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 (see Note 2)
MIN
MAX
UNIT
VCC
Supply voltage
4.75
5.25
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VI
Input voltage
0
VCC
V
VO
Output voltage
0
VCC
V
IOH
High-level output current
–15
mA
IOL
Low-level output current
64
mA
∆t/∆v
Input transition rise or fall rate
0
10
ns/V
TA
Operating free-air temperature
0
70
°C
NOTE 2: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating temperature range (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
MIN
MAX
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
MAX
MIN
MAX
UNIT
VIK
II = –18 mA
4.75 V
–1.2
–1.2
V
VOH
IOH = –15 mA
4.75 V
2.4
2.4
V
VOL
IOL = 64 mA
4.75 V
0.55
0.55
V
II
VI = VCC or GND
5.25 V
±0.1
±1
mA
IOZ
VO = VCC or GND
5.25 V
±0.5
±10
mA
IOS‡
VI = VCC or GND,
VO = 0
5.25 V
–60
–60
mA
ICC
VI = VCC or GND,
IO = 0
5.25 V
8
80
mA
∆ICC§
One input at 3.4 V,
Other inputs at VCC or GND
5.25 V
1.6
1.6
mA
Ci
VI = VCC or GND
10
10
pF
Co
VO = VCC or GND
15
15
pF
‡ Not more than one output should be tested at a time, and the duration of the test should not exceed 100 ms.
§ This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or VCC.


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