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CD74FCT821A Datasheet(PDF) 3 Page - Texas Instruments

Part No. CD74FCT821A
Description  BiCMOS 10-BIT BUS-INTERFACE FLIP-FLOP WITH 3-STATE OUTPUTS
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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CD74FCT821A Datasheet(HTML) 3 Page - Texas Instruments

   
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CD74FCT821A
BiCMOS 10-BIT BUS-INTERFACE FLIP-FLOP
WITH 3-STATE OUTPUTS
SCBS731 − JULY 2000
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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
48
mA
Δt/Δv
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 free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
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 = 48 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
−75
−75
mA
ICC
VI = VCC or GND,
IO = 0
5.25 V
8
80
mA
ΔICC‡
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.
timing requirements over recommended operating temperature conditions (unless otherwise
noted) (see Figure 1)
MIN
MAX
UNIT
fclock
Clock frequency
70
MHz
tw
Pulse duration
CLK high or low
7
ns
tsu
Setup time
Data before CLK
4
ns
th
Hold time
Data after CLK
2
ns


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