參數(shù)資料
型號(hào): SN54AHCT244J
廠商: Texas Instruments, Inc.
英文描述: OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
中文描述: 八路緩沖器/ 3司機(jī)態(tài)輸出
文件頁(yè)數(shù): 4/17頁(yè)
文件大?。?/td> 557K
代理商: SN54AHCT244J
SN54AHCT244, SN74AHCT244
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS228L
OCTOBER 1995
REVISED JULY 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V
±
0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
LOAD
TA = 25
°
C
TYP
5.4*
SN54AHCT244
MIN
1*
SN74AHCT244
MIN
1
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
7.4*
MAX
8.5*
MAX
8.5
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tsk(o)
A
Y
CL= 15 pF
CL = 15 pF
ns
5.4*
7.4*
1*
8.5*
1
8.5
OE
Y
CL= 15 pF
CL = 15 pF
7.7*
10.4*
1*
12*
1
12
ns
7.7*
10.4*
1*
12*
1
12
OE
Y
CL= 15 pF
CL = 15 pF
5*
5*
9.4*
9.4*
1*
1*
10*
10*
1
1
10
10
ns
A
Y
CL= 50 pF
CL = 50 pF
5.9
8.4
1
9.5
1
9.5
ns
5.9
8.4
1
9.5
1
9.5
OE
Y
CL= 50 pF
CL = 50 pF
8.2
11.4
1
13
1
13
ns
8.2
11.4
1
13
1
13
OE
Y
CL= 50 pF
CL = 50 pF
8.8
11.4
1
13
1
13
ns
8.8
11.4
1
13
1
13
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.
noise characteristics, V
CC
= 5 V, C
L
= 50 pF, T
A
= 25
°
C (see Note 4)
PARAMETER
SN74AHCT244
MIN
TYP
UNIT
MAX
VOH(V)
VIH(D)
VIL(D)
NOTE 4: Characteristics are for surface-mount packages only.
Quiet output, minimum dynamic VOH
High-level dynamic input voltage
4.1
V
2
V
Low-level dynamic input voltage
0.8
V
operating characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load,
f = 1 MHz
8.2
pF
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