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参数资料
| 型号： | 75452 |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | DUAL PERIPHERAL DRIVERS |
| 中文描述： | 双外围设备驱动程序 |
| 文件页数： | 3/9页 |
| 文件大小： | 150K |
| 代理商： | 75452 |
SN55451B, SN55452B, SN55453B, SN55454B
SN75451B, SN75452B, SN75453B, SN75454B
DUAL PERIPHERAL DRIVERS
SLRS021B – DECEMBER 1976 – REVISED SEPTEMBER 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbol
&
5
3
2B
2A
1B
1A
2Y
1Y
7
6
2
1
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC publication 617-12.
Pin numbers shown are for the D, JG, and P packages.
logic diagram (positive logic)
2B
2A
1B
1A
4
5
3
GND
2Y
1Y
7
6
2
1
FUNCTION TABLE
(each driver)
A
B
Y
L
L
L (on state)
L
H
L (on state)
H
L
L (on state)
H
H
H (off state)
positive logic:
Y = AB or A+B
electrical characteristics over recommended operating free-air temperature range
PARAMETER
TEST CONDITIONS
SN55451B
MIN
TYP§
SN75451B
MIN
TYP§
UNIT
MAX
–1.5
MAX
–1.5
VIK
Input clamp voltage
VCC = MIN,
VCC = MIN,
IOL = 100 mA
VCC = MIN,
IOL = 300 mA
VCC = MIN,
VOH = 30 V
VCC = MAX,
VCC = MAX,
VCC = MAX,
VCC = MAX,
VCC = MAX,
II = –12 mA
VIL = 0.8 V,
–1.2
–1.2
V
0 25
0.25
0 5
0.5
0 25
0.25
0 4
0.4
VOL
Low level output voltage
Low-level output voltage
V
VIL = 0.8 V,
0 5
0.5
0 8
0.8
0 5
0.5
0 7
0.7
IOH
High level output current
High-level output current
VIH = MIN,
300
100
μ
A
II
IIH
IIL
ICCH
ICCL
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.
switching characteristics, V
CC
= 5 V, T
A
= 25
°
C
Input current at maximum input voltage
High-level input current
Low-level input current
Supply current, outputs high
Supply current, outputs low
VI = 5.5 V
VI = 2.4 V
VI = 0.4 V
VI = 5 V
VI = 0
1
1
mA
μ
A
mA
mA
mA
40
40
–1
–1.6
11
65
–1
–1.6
11
65
7
7
52
52
PARAMETER
TEST CONDITIONS
MIN
TYP
18
18
MAX
UNIT
tPLH
tPHL
tTLH
tTHL
Propagation delay time, low-to-high-level output
Propagation delay time, high-to-low-level output
Transition time, low-to-high-level output
Transition time, high-to-low-level output
25
25
8
12
IO
≈
200 mA,
RL = 50
,
CL = 15 pF,
See Figure 1
ns
5
7
VOH
High level output voltage after switching
High-level output voltage after switching
SN55451B
SN75451B
VS = 20 V,
See Figure 2
IO
≈
300 mA,
VS–6.5
mV
VS–6.5
VCC
A
GND
Y
500
1 k
B
4 k
1.6 k
130
Resistor values shown are nominal.
schematic (each driver)
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