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SN74AHCT273DGVRE4 Arkusz danych(PDF) 4 Page - Texas Instruments

Numer części SN74AHCT273DGVRE4
Szczegółowy opis  OCTAL D-TYPE FLIP-FLOPS WITH CLEAR
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Strona internetowa  http://www.ti.com
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SN54AHCT273, SN74AHCT273
OCTAL D-TYPE FLIP-FLOPS
WITH CLEAR
SCLS375E – JUNE 1997 – REVISED APRIL 2002
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54AHCT273
SN74AHCT273
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
V
IOH = –50 mA
45 V
4.4
4.5
4.4
4.4
V
VOH
IOH = –8 mA
4.5 V
3.94
3.8
3.8
V
V
IOL = 50 mA
45 V
0.1
0.1
0.1
V
VOL
IOL = 8 mA
4.5 V
0.36
0.44
0.44
V
II
VI = 5.5 V or GND
0 V to 5.5 V
±0.1
±1*
±1
mA
ICC
VI = VCC or GND,
IO = 0
5.5 V
4
40
40
mA
∆ICC†
One input at 3.4 V,
Other inputs at VCC or GND
5.5 V
1.35
1.5
1.5
mA
Ci
VI = VCC or GND
5 V
2.5
10
10
pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
† 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 free-air temperature range, VCC = 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
TA = 25°C
SN54AHCT273
SN74AHCT273
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
t
Pulse duration
CLR low
5
6
6
ns
tw
Pulse duration
CLK high or low
5
6.5
6.5
ns
t
Setup time
Data before CLK
5
5
5
ns
tsu
Setup time
CLR before CLK
2.5
2.5
2.5
ns
th
Hold time, data after CLK
0
0
0
ns
switching characteristics over recommended operating free-air temperature range,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54AHCT273
SN74AHCT273
UNIT
PARAMETER
(INPUT)
(OUTPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
f
CL = 15 pF
75**
120**
65**
65
MHz
fmax
CL = 50 pF
50
75
45
45
MHz
tPHL
CLR
Q
CL = 15 pF
7.5**
10**
1**
11.6**
1
11.6
ns
tPLH
CLK
Q
CL =15 pF
5.5**
7.5**
1**
8.8**
1
8.8
ns
tPHL
CLK
Q
CL = 15 pF
5.8**
8.2**
1**
10**
1
10
ns
tPHL
CLR
Q
CL = 50 pF
8.5
11
1
12.6
1
12.6
ns
tPLH
CLK
Q
CL =50 pF
6.5
8.5
1
9.8
1
9.8
ns
tPHL
CLK
Q
CL = 50 pF
6.8
9.2
1
11
1
11
ns
tsk(o)
CL = 50 pF
1***
1
ns
** On products compliant to MIL-PRF-38535, this parameter is not production tested.
*** On products compliant to MIL-PRF-38535, this parameter does not apply.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.


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