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參數(shù)資料
| 型號： | SNJ54AC241FK |
| 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 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大?。?/td> | 378K |
| 代理商： | SNJ54AC241FK |
SCAS513E JUNE 1995 REVISED OCTOBER 2003
5
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
TA = 25
°
C
TYP
SN54AC241
MIN
1
SN74AC241
MIN
1
UNIT
(OUTPUT)
MIN
1.5
MAX
MAX
9.5
MAX
7.5
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
A
Y
5
7
ns
1.5
4.5
7
1
9
1
7.5
OE or OE
Y
1.5
5.5
9
1
10
1
9.5
ns
1.5
5.5
9
1
10
1
9.5
OE or OE
Y
1.5
1.5
6.5
10
10
1
1
11.5
11.5
1
1
10.5
10.5
ns
6
operating characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance per buffer/driver
CL = 50 pF,
f = 1 MHz
45
pF
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
2
×
VCC
Open
500
500
tPLH
tPHL
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2
×
VCC
(see Note B)
Output
Waveform 2
S1 at Open
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
50% VCC
50% VCC
50% VCC
50% VCC
≈
VCC
VCC
0 V
50% VCC
50% VCC
VOH
VOL
0 V
50% VCC
VOL + 0.3 V
50% VCC
VOH 0.3 V
≈
0 V
VCC
Input
Output
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2
×
VCC
Open
TEST
S1
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR
≤
1 MHz, ZO = 50
, tr
≤
2.5 ns, tf
≤
2.5 ns.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
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