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SCC2681T Datasheet(PDF) 7 Page - NXP Semiconductors

Part # SCC2681T
Description  Dual asynchronous receiver/transmitter (DUART)
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SCC2681T Datasheet(HTML) 7 Page - NXP Semiconductors

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Product data
SCC2681T
Dual asynchronous receiver/transmitter (DUART)
2004 Apr 06
7
DC ELECTRICAL CHARACTERISTICS1, 2, 3
Tamb = 0 °C to +70 °C; VCC = +5.0 V ± 10%
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
Min
Typ
Max
UNIT
VIL
LOW-level input voltage
0.8
V
VIH
HIGH-level input voltage (except X1/CLK)
Tamb ≥ 0 °C
2.0
V
VIH
HIGH-level input voltage (except X1/CLK)
Tamb < 0 °C
2.5
V
VIH
HIGH-level input voltage (X1/CLK)
0.8 VCC
V
VOL
LOW-level output voltage
IOL = 2.4 mA
0.4
V
VOH
HIGH-level output voltage (except open-drain outputs)4
IOH = –400 µA
VCC – 0.5
V
IIX1
X1/CLK input current
VIN = 0 V to VCC
–10
+10
µA
IILX1
X1/CLK input LOW current – operating
VIN = 0 V
–75
0
µA
IIHX1
X1/CLK input HIGH current – operating
VIN = VCC
0
75
µA
IOHX2
X2 output HIGH current – operating
VOUT = VCC; X1 = 0
0
+75
µA
IOHX2S
X2 output HIGH short circuit current – operating
VOUT = 0 V; X1 = 0
–10
–1
mA
IOLX2
X2 output LOW current – operating
VOUT = 0 V; X1 = VCC
–75
0
µA
IOLX2S
X2 output LOW short circuit current – operating
VOUT = VCC; X1 = VCC
1
10
mA
Input leakage current:
II
All except input port pins
VIN = 0 V to VCC
–10
+10
µA
Input port pins
VIN = 0 V to VCC
–20
+10
µA
IOZH
Output off current HIGH, 3-state data bus
VIN = VCC
10
µA
IOZL
Output off current LOW, 3-state data bus
VIN = 0 V
–10
µA
IODL
Open-drain output LOW current in off-state
VIN = 0 V
–10
µA
IODH
Open-drain output HIGH current in off-state
VIN = VCC
10
µA
ICC
Power supply current5
ICC
Operating mode
CMOS input levels
10
mA
NOTES:
1. Parameters are valid over specified temperature range.
2. All voltage measurements are referenced to ground (GND). For testing, all inputs swing between 0.4 V and 2.4 V with a transition time of
5 ns maximum. For X1/CLK this swing is between 0.4 V and 4.4 V. All time measurements are referenced at input voltages of 0.8 V and
2.0 V and output voltages of 0.8 V and 2.0 V, as appropriate.
3. Typical values are at +25
°C, typical supply voltages, and typical processing parameters.
4. Test conditions for outputs: CL = 150 pF, except interrupt outputs. Test conditions for interrupt outputs: CL = 50 pF, RL = 2.7 kΩ to VCC.
5. All outputs are disconnected. Inputs are switching between CMOS levels of VCC – 0.2 V and VSS + 0.2 V.


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