DS89C21 Datasheet, PDF (2/6 Pages) National Semiconductor (TI) – Differential CMOS Line Driver and Receiver Pair

Absolute Maximum Ratings (Note 1)
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Supply Voltage (V_CC)
Driver Input Voltage (DI)
Driv_*er Output Voltage (DO,
DO )
Receiver Input Voltage — V
CM
(RI, RI^*)
Differential Receiver Input
Voltage — V_DIFF (RI, RI^*)
Receiver Output Voltage
(RO)
Receiver Output Current
(RO)
Storage Temperature Range
7V
−1.5V to V_CC + 1.5V
−0.5V to +7V
±14V
±14V
−0.5V to V_CC +0.5V
±25 mA
(T_STG)
Lead Temperature (T_L)
(Soldering 4 sec.)
−65˚C to +150˚C
+260˚C
Maximum Junction
Temperature
150˚C
Maximum Package Power Dissipation @+25˚C
M Package
714 mW
Derate M Package
5.7 mW/˚C above
+25˚C
Recommended Operating
Conditions
Supply Voltage (V_CC)
Operating Temperature (T_A)
Input Rise or Fall Time (DI)
Min Max
4.50 5.50
−40 +85
500
Units
V
˚C
ns
Electrical Characteristics (Notes 2, 3)
Over recommended supply voltage and operating temperature ranges, unless otherwise specified.
Symbol
Parameter
Conditions
Pin Min
DRIVER CHARACTERISTICS
V_IH
V_IL
I_IH, I_IL
V_CL
V_OD1
V_OD2
∆V_OD2
V_OD3
V_OD4
V_OC
∆V_OC
I_OSD
I_OFF
Input Voltage HIGH
Input Voltage LOW
Input Current
Input Clamp Voltage
Unloaded Output Voltage
Differential Output Voltage
Change in Magnitude of V _OD2
for Complementary Output States
Differential Output Voltage
Differential Output Voltage
Common Mode Voltage
Change in Magnitude of V _OC
for Complementary Output States
Output Short Circuit Current
Output Leakage Current
RECEIVER CHARACTERISTICS
V_TL, V_TH
V_HYS
R_IN
I_IN
Differential Thresholds
Hysteresis
Input Impedance
Input Current
V_OH
V_OL
I_OSR
Output HIGH Voltage
Output LOW Voltage
Output Short Circuit Current
V _IN = V_CC, GND, 2.0V, 0.8V
I _IN = −18 mA
No Load
R _L = 100Ω
R _L = 150Ω
R _L = 3.9 kΩ
R _L = 100Ω
V _OUT = 0V
V_CC = 0V
V_OUT = +6V
V_OUT = −0.25V
V _IN = +7V, 0V, −7V
V _CM = 0V
V _IN = −7V, +7V, Other = 0V
Other Input = 0V, V_IN = +10V
V_CC = 5.5V and
V_IN = +3.0V
V_CC = 0V
V_IN = +0.5V
V_IN = −3V
V_IN = −10V
I_OH = −6 mA
V_DIFF = +1V
V_DIFF = OPEN
I _OL = +6 mA, V_DIFF = −1V
V _OUT = 0V
2.0
DI GND
DO,
DO* _2.0
2.1
−30
RI, −200
RI* ₂₀
5.0
0
0
RO 3.8
3.8
−25
Typ
0.05
4.2
3.0
5.0
3.1
4.0
2.0
2.0
−115
0.03
−0.08
±25
50
9.5
+1.0
+0.22
−0.04
−0.41
−1.25
4.9
4.9
0.08
−85
Max
V_CC
0.8
±10
−1.5
6.0
400
6.0
3.0
400
−150
+100
−100
+200
+1.5
−2.5
0.3
−150
Units
V
V
µA
V
V
V
mV
V
V
V
mV
mA
µA
µA
mV
mV
kΩ
mA
mA
mA
mA
mA
V
V
V
mA
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