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參數(shù)資料
| 型號(hào)： | SN54LS126AFK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS |
| 中文描述： | 翻兩番總線緩沖器，具有三態(tài)輸出 |
| 文件頁數(shù)： | 5/18頁 |
| 文件大?。?/td> | 580K |
| 代理商： | SN54LS126AFK |
SN54125, SN54126, SN54LS125A, SN54LS126A,
SN74125, SN74126, SN74LS125A, SN74LS126A
QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS
SDLS044A
–
DECEMBER 1983
–
REVISED MARCH 2002
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54125
SN54126
SN74125
SN74126
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
VCC
VIH
VIL
IOH
IOL
TA
Supply voltage
4.5
5
5.5
4.75
5
5.25
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
High-level output current
–
2
–
5.2
mA
Low-level output current
16
16
mA
°
C
Operating free-air temperature
–
55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54125
SN54126
TYP
SN74125
SN74126
TYP
UNIT
MIN
MAX
–
1.5
MIN
MAX
–
1.5
VIK
VCC = MIN,
VCC = MIN,
VIL = 0.8 V
VCC = MIN,
IOL = 16 mA
VCC = MAX
VIL = 0.8 V
VCC = MAX,
VCC = MAX,
VCC = MAX,
VCC = MAX
VCC = MAX
(see Note 3)
II =
–
12 mA
VIH = 2 V,
V
VOH
IOH =
–
2 mA
IOH =
–
5.2 mA
VIL = 0.8 V,
2.4
3.3
V
2.4
3.1
VOL
VIH = 2 V,
0 4
0.4
0 4
0.4
V
IOZ
VIH = 2 V,
VO = 2.4 V
VO = 0.4 V
40
40
μ
A
–
40
–
40
II
IIH
IIL
IOS
§
VI = 6.5 V
VI = 2.4 V
VI = 0.4 V
1
1
mA
μ
A
mA
40
40
–
1.6
–
1.6
–
30
–
70
–
28
–
70
mA
ICC
’
125
’
126
32
36
54
62
32
36
54
62
mA
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
All typical values are at VCC = 5 V, TA = 25
°
C.
§
Not more than one output should be shorted at a time.
NOTE 3: Data inputs = 0 V; output control = 4.5 V for
’
125 and 0 V for
’
126.
switching characteristics, V
CC
= 5 V, T
A
= 25
°
C (see Figure 1)
PARAMETER
TEST CONDITIONS
SN54125
SN74125
SN54126
SN74126
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
RL= 400
RL = 400
,
CL= 50 pF
CL = 50 F
8
13
8
13
ns
12
18
12
18
RL= 400
RL = 400
,
CL= 50 pF
CL = 50 F
11
17
11
18
ns
16
25
16
25
RL= 400
RL = 400
,
CL= 5 pF
CL = 5 F
5
8
10
16
ns
7
12
12
18
The SN54125, SN54126, SN74125,
SN74126, and SN54LS126A are
obsolete and are no longer supplied.
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