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參數資料
| 型號： | 145406 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | RS-232 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | 5V的高速RS - 232收發器與0.1uF電容 |
| 文件頁數： | 1/5頁 |
| 文件大小： | 90K |
| 代理商： | 145406 |
Philips Semiconductors Linear Products
Product specification
MC145406
EIA-232-D/V.28 driver/receiver
467
August 31, 1994
853-1430 13721
DESCRIPTION
The MC145406 is a silicon-gate CMOS IC that combines 3 drivers
and 3 receivers to fulfill the electrical specifications of standards
EIA-232-D and CCITT V.28. The drivers feature true TTL input
compatibility, slew-rate limited output, 300
power-off source
impedance, and output typically switching to within 25% of the
supply rails. The receivers can handle up to +25V while presenting
3 to 7k
impedance. Hysteresis in the receiver aids reception of
noisy signals. By combining both drivers and receivers in a single
CMOS chip, the MC145406 provides efficient, low-power solutions
for EIA-232-D and V.28 applications.
APPLICATIONS
Modem interface
Voice/data telephone interface
Lap-top computers
UART interface
FEATURES
Drivers
+5 to +12V supply range
300 power-off source impedance
Output current limiting
TTL compatible
PIN CONFIGURATION
VDD
RX1
VCC
DO1
DI1
DO2
DI2
DO3
GND
D and N Packages
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
TX1
VSS
RX2
TX2
RX3
TX3
DI3
NOTE:
D = Driver
R = Receiver
R
D
R
D
R
D
Maximum slew rate = 30V/s
Receivers
+25V input voltage range over the full supply range
3 to 7k input impedance
Hysteresis on input switchpoint
General
Very low supply currents for long battery life
Operation is independent of power supply sequencing
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
ORDER CODE
DWG #
16-Pin Plastic Dual In-Line (DIP) Package
0 to +70
°C
MC145406N
0406C
16-Pin Small Outline Large (SOL) Package
0 to +70
°C
MC145406D
0171B
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNITS
VCC
Supply voltage
-0.5 to +6.0
V
VDD
Supply voltage
-0.5 to +13.5
V
VSS
Supply voltage
+0.5 to -13.5
V
VIR
Input voltage range
RX1-3 inputs
DI1-3 inputs
(VSS - 15) to (VDD + 15)
-0.5 to (VCC + 0.5)
V
DC current per pin
+100
mA
PD
Power dissipation (package)
1.0
W
TA
Operating temperature range
0 to +70
°C
TSTG
Storage temperature range
-65 to +150
°C
θJA
Thermal impedance
N package
D package
80
105
°C/W
NOTE: This device contains protection circuitry to protect the inputs against damage due to high static voltages or electric fields; however, it is
advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit.
For proper operation, it is recommended that the voltages at the DI and DO pins be constrained to the range GND < VDI < VDD and GND < VDO
< VCC. Also, the voltage at the RX pin should be constrained to +25V, and TX should be constrained to VSS < VTX1-3 < VDD. Unused inputs
must always be tied to an appropriate logic voltage level (e.g., GND or VCC for DI, and VSS or VDD for RX).
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