XR88C681_06 Datasheet, PDF (8/101 Pages) Exar Corporation – CMOS Dual Channel UART (DUART)

XR88C681
DC ELECTRICAL CHARACTERISTICS^{1, 2, 3}
Test Conditions: T_A = 0 - 70°C, V_CC = 5V ¦ 5% unless otherwise specified.
Symbol
V_IL
V_IH
V_IH
V_IHX1
V_OL
V_OH
I_IL
I_ILSEL
I_X1L
I_X2L
I_XIH
I_X2H
I_LL
I_OC
I_CCA
I_CCS
Parameter
Input Low Voltage
Input High Voltage
Input High Voltage (Military)
Input High Voltage (X1/CLK)
Output Low Voltage
Output High Voltage
Input Leakage Current
Select Pin Leakage Current
X1 Input Low Current
X2 Input Low Current
X1 Input High Current
X2 Input High Current
Data Bus Tri-State Leakage
Current
Open Drain Output Leakage
Current
Power Supply Current⁴
Power Supply Current⁴
Min.
0.5
2.0
2.2
4.0
2.4
-25
-30
-10
-10
Typ.
Max.
0.8
V_CC
V_CC
0.4
25
+30
-20
-7
20
20
10
10
6
15
3
10
Unit
V
V
V
V
V
V
A
A
A
mA
A
A
A
A
mA
mA
Conditions
T_A = -55°C to 125°C
I_OL = 2.4mA
I_OH = -400 A
V_IN = 0 to V_CC
V_IN = 0 to V_CC
V_IN = 0
V_IN = V_CC
V_IN = V_CC
V_O = 0 to V_CC
V_O = 0 to V_CC
Active Mode
Standby Mode
Notes
1._{Parameters are valid over the specified temperature and operating supply ranges. Typical values are 25°C, VCC = 5V and typical}
processing parameters.
2._{All voltages are referenced to ground (GND). For testing, input signal levels are 0.4V and 2.4V with a transition time of 20ns}
maximum. All time measurements are referenced at input voltages of 0.8V and 2.0V as appropriate. See Figure 50.
3._{For prime grade N, P, J, L, M, ML, VCC = 5V + 10%.}
4._{Measured operating with a 3.6864MHz crystal and with all outputs open.}
Rev. 2.11
8