CD74FCT2952A Datasheet, PDF (4/9 Pages) Texas Instruments – BiCMOS OCTAL BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS

CD74FCT2952A
BiCMOS OCTAL BUS TRANSCEIVER AND REGISTER
WITH 3-STATE OUTPUTS
SCBS720 – JULY 2000
recommended operating conditions (see Note 2)
MIN MAX UNIT
VCC
VIH
VIL
VI
VO
IOH
IOL
∆t/∆v
Supply voltage
High-level input voltage
Low-level input voltage
Input voltage
Output voltage
High-level output current
Low-level output current
Input transition rise or fall rate
4.75 5.25 V
2
V
0.8 V
0 VCC V
0 VCC V
–15 mA
48 mA
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
VCC
TA = 25°C
MIN
MIN MAX
VIK
VOH
VOL
II
IOZ
IOS†
ICC
∆ICC‡
II = –18 mA
IOH = –15 mA
IOL = 64 mA
VI = VCC or GND
VO = VCC or GND
VI = VCC or GND,
VI = VCC or GND,
One input at 3.4 V,
Other inputs at VCC or GND
VO = 0
IO = 0
4.75 V
4.75 V
4.75 V
5.25 V
5.25 V
5.25 V
5.25 V
5.25 V
–1.2
2.4
2.4
0.55
±0.1
±0.5
–60
–60
8
1.6
Ci
VI = VCC or GND
10
Co
VO = VCC or GND
15
† _{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.}
MAX
–1.2
0.55
±1
±10
80
1.6
10
15
UNIT
V
V
V
mA
mA
mA
mA
mA
pF
pF
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
tw Pulse duration
tsu Setup time
th
Hold time
CLK high or low
A or B
CLKEN
High or low
A or B
CLKEN
MIN MAX UNIT
3
ns
2
ns
3
2
ns
2
4
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