scn2681t NXP Semiconductors, scn2681t Datasheet - Page 6

• Manufacturer Part Number: scn2681t
• Description: Dual Asynchronous Receiver/transmitter Duart
• Manufacturer: NXP Semiconductors

1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and
2. For operating at elevated temperatures, 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
1. Parameters are valid over specified temperature range. See Ordering information table for applicable operating temperature range and V
2. All voltage measurements are referenced to ground (GND). For testing, all inputs except X1/CLK swing between 0.4 V and 2.4 V with a
3. Typical values are at +25 C, typical supply voltages, and typical processing parameters.
4. Test conditions for outputs: C
5. For bus operations, CEN and RDN (also CEN and WRN) are ANDed internally. As a consequence, the signal asserted last initiates the cycle
Philips Semiconductors
ABSOLUTE MAXIMUM RATINGS
NOTES:
DC ELECTRICAL CHARACTERISTICS
NOTES:
2004 Mar 22
T
T
amb
stg
Dual asynchronous receiver/transmitter (DUART)
SYMBOL
SYMBOL
functional operation of the device at these or any other conditions above those indicated in the operation section of this specification is not
implied.
charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying any voltages larger than the rated maxima.
supply range.
transition time of 20 ns maximum. For X1/CLK this swing is between 0.4 V and 4.0 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.
and the signal negated first terminates the cycle.
V
V
V
V
V
I
I
I
I
I
I
I
I
IL
LL
X1L
X1H
X2L
X2H
OC
CC
SYMBOL
IL
IH
IH
OL
OH
Input LOW voltage
Input HIGH voltage (except X1/CLK)
Input HIGH voltage (X1/CLK)
Output LOW voltage
Output HIGH voltage (except o.c. outputs)
Input leakage current
Data bus 3–state leakage current
X1/CLK LOW input current
X1/CLK HIGH input current
X2 LOW input current
X2 HIGH input current
Open-collector output leakage current
Power supply current
Operating ambient temperature range
Storage temperature range
All voltages with respect to GND
PARAMETER
PARAMETER
L
= 150 pF, except interrupt outputs. Test conditions for interrupt outputs: C
5
1
PARAMETER
1, 2, 3
3
4
2
6
V
V
V
V
IN
IN
IN
V
IN
TEST CONDITIONS
TEST CONDITIONS
V
= V
= V
IN
V
V
IN
= 0 V, X1/CLK floated
V
= 0 V, X2 grounded
O
O
I
IN
= V
OH
I
= 0 V, X2 floated
CC
OL
CC
= 0.4 V to V
= 0.4 V to V
= 0 V to V
CC
= –400 A
, X1/CLK floated
, X2 = grounded
= 2.4 mA
, X2 floated
CC
CC
CC
–65 to +150
–0.5 to +6.0
RATING
0 to +70
L
= 50 pF, R
–100
Min
–10
–10
–10
2.0
3.5
2.4
–4
–3
–1
–
0
0
–
LIMITS
–1.5
Typ
–30
+30
L
–2
0.2
3.5
–
–
–
–
–
–
–
–
–
= 2.7 k to V
SCN2681T
Max
100
150
0.8
0.4
10
10
10
10
0
–
–
–
0
1
0
UNIT
Product data
V
C
C
CC
.
UNIT
UNIT
mA
mA
mA
mA
mA
V
V
V
V
V
A
A
A
A
A
CC