FN6041.2 June 16, 2010 Pinout ISL4270E (QFN) TOP VIEW NC C2+ C2- V- T1IN " />
參數(shù)資料
型號: ISL4270EIRZ
廠商: Intersil
文件頁數(shù): 6/13頁
文件大?。?/td> 0K
描述: IC 3DRVR/3RCVR RS232 3V 32-QFN
標準包裝: 60
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 3/3
規(guī)程: RS232
電源電壓: 3 V ~ 5.5 V
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 32-QFN 裸露焊盤(5x5)
包裝: 管件
2
FN6041.2
June 16, 2010
Pinout
ISL4270E (QFN)
TOP VIEW
NC
C2+
C2-
V-
T1IN
T2IN
INVALID
T1OUT
T2OUT
T3OUT
R1IN
R2IN
R3IN
NC
T3
IN
FORCE
ON
R3
OU
T
R2
OU
T
V
L
R1
OU
T
C1-
V+
C1+
FORCE
OFF
V
CC
NC
GND
NC
7
11
12
13
14
15
9
10
6
1
2
3
4
5
8
16
18
19
24
23
22
21
20
17
27
28
29
30
31
25
26
32
NC
PD
Pin Descriptions
PIN
FUNCTION
VCC
System power supply input (3.0V to 5.5V).
V+
Internally generated positive transmitter supply (+5.5V).
V-
Internally generated negative transmitter supply (-5.5V).
GND
Ground connection. This is also the potential of the thermal pad (PD).
C1+
External capacitor (voltage doubler) is connected to this lead.
C1-
External capacitor (voltage doubler) is connected to this lead.
C2+
External capacitor (voltage inverter) is connected to this lead.
C2-
External capacitor (voltage inverter) is connected to this lead.
TIN
TTL/CMOS compatible transmitter Inputs. The switching point is a function of the VL voltage.
TOUT
±15kV ESD Protected
, RS-232 level (nominally ±5.5V) transmitter outputs.
RIN
±15kV ESD Protected
, RS-232 compatible receiver inputs.
ROUT
TTL/CMOS level receiver outputs. Swings between GND and VL.
VL
Logic-Level Supply. All TTL/CMOS inputs and outputs are powered by this supply.
INVALID
Active low output that indicates if no valid RS-232 levels are present on any receiver input. Swings between GND and VL.
FORCEOFF Active low to shut down transmitters and on-chip power supply. This overrides any automatic circuitry and FORCEON (see Table 2).
The switching point is a function of the VL voltage.
FORCEON Active high input to override automatic powerdown circuitry thereby keeping transmitters active (FORCEOFF must be high). The
switching point is a function of the VL voltage.
PD
Exposed Thermal Pad. Connect to GND.
ISL4270E
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