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參數資料
| 型號： | FN3138 |
| 廠商： | Integrated Silicon Solution, 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： | 2/20頁 |
| 文件大小： | 712K |
| 代理商： | FN3138 |
2
Pin Descriptions
PIN
FUNCTION
V
CC
Power Supply Input 5V
±
10%.
V+
Internally generated positive supply (+10V nominal), HIN239 requires +7.5V to +13.2V.
V-
Internally generated negative supply (-10V nominal).
GND
Ground lead. Connect to 0V.
C1+
External capacitor (+ terminal) is connected to this lead.
C1-
External capacitor (- terminal) is connected to this lead.
C2+
External capacitor (+ terminal) is connected to this lead.
C2-
External capacitor (- terminal) is connected to this lead.
T
IN
Transmitter Inputs. These leads accept TTL/CMOS levels. An internal 400k
pull-up resistor to
V
CC
is connected to each lead.
T
OUT
Transmitter Outputs. These are RS-232 levels (nominally
±
10V).
R
IN
Receiver Inputs. These inputs accept RS-232 input levels. An internal 5k
pull-down resistor to GND is connected to each input.
R
OUT
Receiver Outputs. These are TTL/CMOS levels.
EN
Enable input. This is an active low input which enables the receiver outputs. With EN = 5V, the receiver outputs are placed in
a high impedance state.
SD
Shutdown Input. With SD = 5V, the charge pump is disabled, the receiver outputs are in a high impedance state and the
transmitters are shut off.
NC
No Connect. No connections are made to these leads.
HIN232, HIN236, HIN237, HIN238, HIN239, HIN240, HIN241
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