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参数资料
| 型号： | SNJ54AHC244WR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | AHC/VHC/H/U/V SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDFP20 |
| 封装： | HERMETIC SEALED, CERAMIC, FP-20 |
| 文件页数： | 18/23页 |
| 文件大小： | 802K |
| 代理商： | SNJ54AHC244WR |
SN54AHC244, SN74AHC244
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS226J OCTOBER 1995 REVISED JULY 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54AHC244
SN74AHC244
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
Y
C
15 pF
5.8*
8.4*
1*
10*
1
10
ns
tPHL
A
Y
CL = 15 pF
5.8*
8.4*
1*
10*
1
10
ns
tPZH
OE
Y
C
15 pF
6.6*
10.6*
1*
12.5*
1
12.5
ns
tPZL
OE
Y
CL = 15 pF
6.6*
10.6*
1*
12.5*
1
12.5
ns
tPHZ
OE
Y
C
15 pF
5*
9.7*
1*
11*
1
11
ns
tPLZ
OE
Y
CL = 15 pF
5*
9.7*
1*
11*
1
11
ns
tPLH
A
Y
C
50 pF
8.3
11.9
1
13.5
1
13.5
ns
tPHL
A
Y
CL = 50 pF
8.3
11.9
1
13.5
1
13.5
ns
tPZH
OE
Y
C
50 pF
9.1
14.1
1
16
1
16
ns
tPZL
OE
Y
CL = 50 pF
9.1
14.1
1
16
1
16
ns
tPHZ
OE
Y
C
50 pF
10.3
14
1
16
1
16
ns
tPLZ
OE
Y
CL = 50 pF
10.3
14
1
16
1
16
ns
tsk(o)
CL = 50 pF
1.5**
1.5
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.
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
SN54AHC244
SN74AHC244
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
Y
C
15 pF
3.9*
5.5*
1*
6.5*
1
6.5
ns
tPHL
A
Y
CL = 15 pF
3.9*
5.5*
1*
6.5*
1
6.5
ns
tPZH
OE
Y
C
15 pF
4.7*
7.3*
1*
8.5*
1
8.5
ns
tPZL
OE
Y
CL = 15 pF
4.7*
7.3*
1*
8.5*
1
8.5
ns
tPHZ
OE
Y
C
15 pF
5*
7.2*
1*
8.5*
1
8.5
ns
tPLZ
OE
Y
CL = 15 pF
5*
7.2*
1*
8.5*
1
8.5
ns
tPLH
A
Y
C
50 pF
5.4
7.5
1
8.5
1
8.5
ns
tPHL
A
Y
CL = 50 pF
5.4
7.5
1
8.5
1
8.5
ns
tPZH
OE
Y
C
50 pF
6.2
9.3
1
10.5
1
10.5
ns
tPZL
OE
Y
CL = 50 pF
6.2
9.3
1
10.5
1
10.5
ns
tPHZ
OE
Y
C
50 pF
6.7
9.2
1
10.5
1
10.5
ns
tPLZ
OE
Y
CL = 50 pF
6.7
9.2
1
10.5
1
10.5
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.
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