SN55451B, SN55452B, SN55453B, SN55454B
SN75451B, SN75452B, SN75453B, SN75454B
DUAL PERIPHERAL DRIVERS
SLRS021B – DECEMBER 1976 – REVISED SEPTEMBER 1999
6
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.
≥
1
logic diagram (positive logic)
2B
2A
1B
1A
4
5
3
GND
2Y
1Y
7
6
2
1
FUNCTION TABLE
(each driver)
B
A
Y
L
L
H (off state)
L
H
L (on state)
H
L
L (on state)
H
H
L (on state)
positive logic:
Y = A+B or AB
electrical characteristics over recommended operating free-air temperature range
PARAMETER
TEST CONDITIONS
SN55454B
MIN
TYP§
SN75454B
MIN
TYP§
UNIT
MAX
MAX
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
VIH = MIN,
–1.2
–1.5
–1.2
–1.5
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
VIH = MIN,
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
VIL = 0.8 V,
300
100
μ
A
II
IIH
IIL
ICCH Supply current, outputs high
ICCL
Supply current, outputs low
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.
Input current at maximum input voltage
VI = 5.5 V
VI = 2.4 V
VI = 0.4 V
VI = 0
VI = 5 V
1
1
mA
μ
A
mA
High-level input current
40
40
Low-level input current
–1
–1.6
–1
–1.6
13
17
13
17
mA
61
79
61
79
mA
switching characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
MIN
TYP
27
MAX
UNIT
tPLH
tPHL
tTLH
tTHL
Propagation delay time, low-to-high-level output
35
Propagation delay time, high-to-low-level output
IO
≈
200 mA,
RL = 50
,
CL = 15 pF,
See Figure 1
24
35
ns
Transition time, low-to-high-level output
5
8
Transition time, high-to-low-level output
7
12
VOH
High level output voltage after switching
High-level output voltage after switching
SN55454B
SN75454B
VS = 20 V,
See Figure 2
IO
≈
300 mA,
VS–6.5
mV
VS–6.5
4
k
1.6
k
2 k
schematic (each driver)
Resistor values shown are nominal.
VCC
A
B
GND
Y
500
1 k
4 k
2 k
130
1 k