DS89C21_14 Datasheet, PDF (3/13 Pages) Texas Instruments – Differential CMOS Line Driver and Receiver Pair

DS89C21
www.ti.com
SNLS091C – JUNE 1998 – REVISED APRIL 2013
Electrical Characteristics ⁽¹⁾⁽²⁾
Over recommended supply voltage and operating temperature ranges, unless otherwise specified.
Symbol
Parameter
Conditions
Pin Min Typ
DRIVER CHARACTERISTICS
V_IH
V_IL
I_IH, I_IL
V_CL
V_OD1
V_OD2
ΔV_OD2
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
V _IN = V_CC, GND, 2.0V, 0.8V
I _IN = −18 mA
No Load
R _L = 100Ω
2.0
DI GND
0.05
DO,
4.2
DO* _{2.0 3.0}
5.0
V_OD3
V_OD4
V_OC
ΔV_OC
Differential Output Voltage
Differential Output Voltage
Common Mode Voltage
Change in Magnitude of V _OC
for Complementary Output States
R _L = 150Ω
R _L = 3.9 kΩ
R _L = 100Ω
2.1 3.1
4.0
2.0
2.0
I_OSD
Output Short Circuit Current
I_OFF
Output Leakage Current
RECEIVER CHARACTERISTICS
V _OUT = 0V
V_CC = 0V
V_OUT = +6V
V_OUT = −0.25V
−30 −115
0.03
−0.08
V_TL, V_TH
V_HYS
R_IN
I_IN
Differential Thresholds
Hysteresis
Input Impedance
Input Current
V_OH
Output HIGH Voltage
V_OL
Output LOW Voltage
I_OSR
Output Short Circuit Current
DRIVER AND RECEIVER CHARACTERISTICS
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
RI, −200 ±25
RI* ₂₀
50
5.0 9.5
+1.0
0 +0.22
−0.04
0 −0.41
−1.25
RO 3.8 4.9
3.8 4.9
0.08
−25 −85
I_CC
Supply Current
No Load
DI = V_CC or GND
V_CC
3.0
DI = 2.4V or 0.5V
3.8
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
6
12
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
mA
mA
(1) Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground
unless otherwise specified.
(2) All typicals are given for V_CC = 5.0V and T _A = 25°C.
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