參數(shù)資料
型號： SN74LS125AN8
廠商： TEXAS INSTRUMENTS INC
元件分類： 總線收發(fā)器
英文描述： LS SERIES, QUAD 1-BIT DRIVER, TRUE OUTPUT, PDIP14
封裝： ROHS COMPLIANT, PLASTIC, MS-001AA, DIP-14
文件頁數(shù)： 18/21頁
文件大?。?/td> 781K
代理商： SN74LS125AN8
SN54125, SN54126, SN54LS125A, SN54LS126A,
SN74125, SN74126, SN74LS125A, SN74LS126A
QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS
SDLS044A – DECEMBER 1983 – REVISED MARCH 2002
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54LS125A
SN54LS126A
SN74LS125A
SN74LS126A
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
VCC
Supply voltage
4.5
5
5.5
4.75
5
5.25
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.7
0.8
V
IOH
High-level output current
–1
–2.6
mA
IOL
Low-level output current
12
24
mA
TA
Operating free-air temperature
–55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54LS125A
SN54LS126A
SN74LS125A
SN74LS126A
UNIT
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
VIK
VCC = MIN,
II = –18 mA
–1.5
V
VOH
VCC = MIN,
VIL = 0.7 V,
IOH = –1 mA
2.4
V
VOH
VIH = 2 V
VIL = 0.8 V
IOH = –2.6 mA
2.4
V
MIN
VIL = 0.7 V,
IOL = 12 mA
0.25
0.4
VOL
VCC = MIN,
VIH =2V
VIL = 0.8 V,
IOL = 12 mA
0.25
0.4
V
VIH = 2 V
VIL = 0.8 V,
IOL = 24 mA
0.35
0.5
VIL =0 7V
VO = 2.4 V
20
I
VCC = MAX,
VIL = 0.7 V
VO = 0.4 V
–20
A
IOZ
CC
,
VIH = 2 V,
VIL =0 8V
VO = 2.4 V
20
A
VIL = 0.8 V
VO = 0.4 V
–20
II
VCC = MAX,
VI = 7 V
0.1
mA
IIH
VCC = MAX,
VI = 2.7 V
20
A
IIL
VCC = MAX,
’LS125A-G inputs
–0.2
mA
IIL
VI = 0.4 V
’LS125A-A inputs; ’LS126A All inputs
–0.4
mA
IOS§
VCC = MAX
–40
–225
–40
–225
mA
ICC
VCC = MAX
’LS125A
11
20
11
20
mA
ICC
CC
(see Note 4)
’LS126A
12
22
12
22
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, and the duration of the short circuit should not exceed one second.
NOTE 4: Data inputs = 0 V; output control = 4.5 V for ’LS125A and 0 V for ’LS126A.
switching characteristics, VCC = 5 V, TA = 25°C (see Figure 1)
PARAMETER
TEST CONDITIONS
SN54LS125A
SN74LS125A
SN54LS126A
SN74LS126A
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
tPLH
RL = 667
CL =45 pF
9
15
9
15
ns
tPHL
RL = 667 ,
CL = 45 F
7
18
8
18
ns
tPZH
RL = 667
CL =45 pF
12
20
16
25
ns
tPZL
RL = 667 ,
CL = 45 F
15
25
21
35
ns
tPHZ
RL = 667
CL =5 pF
20
25
ns
tPLZ
RL = 667 ,
CL = 5 F
20
25
ns
The SN54125, SN54126, SN74125,
SN74126, and SN54LS126A are
obsolete and are no longer supplied.
相關(guān)PDF資料
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