參數(shù)資料
型號(hào)： SCC2691
廠商： NXP Semiconductors N.V.
英文描述： Universal asynchronous receiver/transmitter (DUART）(通用異步接收器/傳送器)
中文描述： 通用異步接收器/發(fā)送器（杜阿爾特）（通用異步接收器/傳送器）
文件頁(yè)數(shù)： 5/24頁(yè)
文件大小： 168K
代理商： SCC2691
Philips Semiconductors
Product specification
SCC2691
Universal asynchronous receiver/transmitter (UART)
1998 Sep 04
5
ABSOLUTE MAXIMUM RATINGS
1
SYMBOL
T
A
T
STG
V
CC
V
S
P
D
NOTES:
1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other condition above those indicated in the operation section of this specification is not
implied.
2. For operating at elevated temperature, the device must be derated based on +150
°
C maximum junction temperature.
3. This product includes circuitry specifically designed for the protection of its internal devices from damaging effects of excessive static
charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying any voltages larger than the rated maxima.
4. Parameters are valid over specified temperature range. See Ordering Information table for applicable operating temperature and V
CC
supply
range.
DC ELECTRICAL CHARACTERISTICS
1, 2, 3
PARAMETER
RATING
Note 4
–65 to +150
–0.5 to + 7.0
–0.5 to V
CC
+10%
300
UNIT
°
C
°
C
V
V
mW
Operating ambient temperature range
2
Storage temperature range
Voltage from V
CC
to GND
3
Voltage from any pin to ground
3
Power Dissipation
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
Typ
UNIT
Min
Max
V
IL
V
IH
Input low voltage
Input high voltage
0.8
V
All except X1/CLK
X1/CLK
2
0.8V
CC
V
CC
0.4
V
V
V
V
OL
Output low voltage
Output high voltage
(except open drain outputs)
I
OL
= 2.4mA
I
OH
= –400
μ
A
V
IN
=
0
to V
CC
V
O
=
0.4 to V
CC
V
O
= 0.4 to V
CC
V
IN
=
0, X2 floated
V
IN
= V
CC
, X2 floated
V
OUT
=
0, X1/CLK = V
CC
V
OUT
= V
CC
, X1/CLK = 0V
0
°
C to +70
°
C
–40
°
C to +85
°
C
2.4
–10
–10
–10
–100
0
–100
V
V
I
IL
I
LL
I
OD
I
XIL
I
XIH
I
X2L
I
X2H
I
CCA
Input leakage current
Data bus 3-State leakage current
Open-drain output leakage current
X1/CLK low input current
X1/CLK high input current
X2 low output current
10
10
10
0
100
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
mA
mA
μ
A
–30
30
X2 high output current
Power supply current, active
100
2.0
2.5
500
I
CCD
NOTES:
1. Parameters are valid over specified temperature range. See Ordering Information table for applicable operating temperature and V
CC
supply
range.
2. All voltage measurements are referenced to ground (GND). For testing, all input signals swing between 0V and 3.0V with a transition time of
20ns max. For X1/CLK, this swing is between 0.4V and 4.0V. All time measurements are referenced at input voltages of 0.8V and 2V and
output voltages of 0.8V and 2V as appropriate.
3. Typical values are at +25
°
C, typical supply voltages, and typical processing parameters.
4. Test condition for outputs: C
L
= 150pF, except interrupt outputs. Test conditions for interrupt outputs: C
L
= 50pF, R
L
= 2.7k
to V
CC
.
5. For power down current levels in the 1
μ
A region see the UART application note.
Power down current
5
0.8
1.0
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