參數(shù)資料
型號: SN74LS126D
廠商: Motorola, Inc.
英文描述: QUAD 3-STATE BUFFERS
中文描述: 四三態(tài)緩沖器
文件頁數(shù): 2/5頁
文件大小: 158K
代理商: SN74LS126D
5-208
FAST AND LS TTL DATA
SN54/74LS125A
SN54/74LS126A
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
All Inputs
74
0.8
VIK
Input Clamp Diode Voltage
–0.65
–1.5
V
VCC = MIN, IIN = –18 mA
VOH
Output HIGH Voltage
54
2.4
V
or VIL per Truth Table
74
2.4
V
VCC = MIN, IOH = MAX, VIN = VIH
VOL
Output LOW Voltage
54, 74
0.25
0.4
V
IOL = 12 mA
VCC = VCC MIN,
per Truth Table
74
0.35
0.5
V
IOL = 24 mA
VIN = VIL or VIH
IOZH
IOZL
Output Off Current HIGH
20
μ
A
VCC = MAX, VOUT = 2.4 V
VCC = MAX, VOUT = 0.4 V
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
VCC = MAX, VIN = 0.4 V
VCC = MAX
Output Off Current LOW
–20
μ
A
IIH
Input HIGH Current
20
μ
A
0.1
mA
IIL
IOS
Input LOW Current
–0.4
mA
Short Circuit Current (Note 1)
–40
–225
mA
ICC
Power Supply Current
LS125A
20
mA
VCC = MAX
VIN = 0 V, VE = 4.5 V
VIN = 0 V, VE = 0 V
LS126A
22
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(TA = 25
°
C)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
tPLH
tPLH
tPHL
tPHL
Data to Output
LS125A
9.0
15
Figure 2
RL = 667
Propagation Delay,
LS126A
9.0
15
ns
CL = 45 pF
LS125A
7.0
18
VCC = 5.0 V
LS126A
8.0
18
tPZH
Output Enable Time
to HIGH Level
LS125A
12
20
ns
Figures 4, 5
LS126A
16
25
tPZL
Output Enable Time
to LOW Level
LS125A
15
25
ns
Figures 3, 5
LS126A
21
35
tPHZ
Output Disable Time
from HIGH Level
LS125A
20
ns
Figures 4, 5
RL = 667
LS126A
25
VCC = 5.0 V
CL = 5.0 pF
tPLZ
Output Disable Time
from LOW Level
LS125A
20
ns
FIgures 3, 5
LS126A
25
相關PDF資料
PDF描述
SN74LS126N QUAD 3-STATE BUFFERS
SN54LS12J TRIPLE 3-INPUT NAND GATE
SN74LS12D TRIPLE 3-INPUT NAND GATE
SN74LS12N TRIPLE 3-INPUT NAND GATE
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