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SCN2681TのメーカーはPhilipsです、この部品の機能は「Dual asynchronous receiver/transmitter DUART」です。 |
部品番号 | SCN2681T |
| |
部品説明 | Dual asynchronous receiver/transmitter DUART | ||
メーカ | Philips | ||
ロゴ | |||
このページの下部にプレビューとSCN2681Tダウンロード(pdfファイル)リンクがあります。 Total 14 pages
INTEGRATED CIRCUITS
SCN2681T
Dual asynchronous receiver/transmitter
(DUART)
Product specification
Supersedes data of 1995 May 01
IC19 Data Handbook
1998 Sep 04
Philips
Semiconductors
1 Page Philips Semiconductors
Dual asynchronous receiver/transmitter (DUART)
Product specification
SCN2681T
PIN CONFIGURATIONS
A0 1
IP3 2
40 VCC
39 IP4
A1 3
38 IP5
IP1 4
37 IP6
A2 5
36 IP2
A3 6
35 CEN
IP0 7
34 RESET
WRN 8
33 X2
RDN 9
32 X1/CLK
RxDB 10
31 RxDA
DIP
TxDB 11
30 TxDA
OP1 12
29 OP0
OP3 13
28 OP2
OP5 14
27 OP4
OP7 15
26 OP6
D1 16
25 D0
D3 17
24 D2
D5 18
23 D4
D7 19
22 D6
GND 20
21 INTRN
NOTE:
Refer to SCN2681 for functional description.
INDEX
CORNER
7
6
1 40
39
PLCC
17
18
TOP VIEW
29
28
PIN/FUNCTION
1 NC
2 A0
3 IP3
4 A1
5 IP1
6 A2
7 A3
8 IP0
9 WRN
10 RDN
11 RxDB
12 NC
13 TxDB
14 OP1
15 OP3
16 OP5
17 OP7
18 D1
19 D3
20 D5
21 D7
22 GND
Figure 1. Pin Configurations
PIN/FUNCTION
23 NC
24 INTRN
25 D6
26 D4
27 D2
28 D0
29 OP6
30 OP4
31 OP2
32 OP0
33 TxDA
34 NC
35 RxDA
36 X1/CLK
37 X2
38 RESET
39 CEN
40 IP2
41 IP6
42 IP5
43 IP4
44 VCC
SD00098
1998 Sep 04
3
3Pages Philips Semiconductors
Dual asynchronous receiver/transmitter (DUART)
Product specification
SCN2681T
ABSOLUTE MAXIMUM RATINGS1
SYMBOL
PARAMETER
RATING
UNIT
TA
TSTG
Operating ambient temperature range2
Storage temperature range
All voltages with respect to GND3
0 to +70
-65 to +150
-0.5 to +6.0
°C
°C
V
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 conditions above those indicated in the operation section of this specification is not
implied.
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
charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying any voltages larger than the rated maxima.
DC ELECTRICAL CHARACTERISTICS1, 2, 3
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
Min Typ Max
UNIT
VIL Input low voltage
VIH Input high voltage (except X1/CLK)
VIH Input high voltage (X1/CLK)
0.8
2.0 V
3.5
VOL Output low voltage
VOH Output high voltage (except o.c. outputs)4
IOL = 2.4mA
IOH = -400µA
0.4
2.4 V
IIL Input leakage current
ILL Data bus 3-state leakage current
VIN = 0 to VCC
VO = 0.4 to VCC
-10 10
-10 10 µA
IX1L X1/CLK low input current
IX1H X1/CLK high input current
IX2L X2 low input current
IX2H X2 high input current
VIN = 0, X2 grounded
VIN = 0, X2 floated
VIN = VCC, X2 = grounded
VIN = VCC, X2 floated
VIN = 0, X1/CLK floated
VIN = VCC, X1/CLK floated
-4 -2 0 mA
-3 -1.5 0 mA
-1 0.2 1 mA
0 3.5 10 mA
-100 -30 0 µA
0
+30 100
µA
IOC Open-collector output leakage current
VO = 0.4 to VCC
-10 10 µA
ICC Power supply current5
150 mA
NOTES:
1. Parameters are valid over specified temperature range. See Ordering information table for applicable operating temperature range and VCC
supply range.
2. All voltage measurements are referenced to ground (GND). For testing, all inputs except X1/CLK swing between 0.4V and 2.4V with a
transition time of 20ns maximum. For X1/CLK this swing is between 0.4V and 4.0V. All time measurements are referenced at input voltages
of 0.8V and 2.0V and output voltages of 0.8V and 2.0V as appropriate.
3. Typical values are at +25°C, typical supply voltages, and typical processing parameters.
4. Test conditions for outputs: CL = 150pF, except interrupt outputs. Test conditions for interrupt outputs: CL = 50pF, RL = 2.7kΩ to VCC.
5. For bus operations, CEN and RDN (also CEN and WRN) are ANDed internally. As a consequence, the signal asserted last initiates the cycle
and the signal negated first terminates the cycle.
AC ELECTRICAL CHARACTERISTICS1, 2, 3, 4
RESET
tRES
SD00028
Figure 3. Reset Timing
NOTES:
1. Parameters are valid over specified temperature range. See Ordering information table for applicable operating temperature range and VCC
supply range.
2. All voltage measurements are referenced to ground (GND). For testing, all inputs except X1/CLK swing between 0.4V and 2.4V with a
transition time of 20ns maximum. For X1/CLK this swing is between 0.4V and 4.0V. All time measurements are referenced at input voltages
of 0.8V and 2.0V and output voltages of 0.8V and 2.0V as appropriate.
3. Typical values are at +25°C, typical supply voltages, and typical processing parameters.
4. Test conditions for outputs: CL = 150pF, except interrupt outputs. Test conditions for interrupt outputs: CL = 50pF, RL = 2.7kΩ to VCC.
1998 Sep 04
6
6 Page | |||
ページ | 合計 : 14 ページ | ||
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部品番号 | 部品説明 | メーカ |
SCN2681 | Dual asynchronous receiver/transmitter DUART | Philips |
SCN2681T | Dual asynchronous receiver/transmitter DUART | Philips |