ICL3244EIA 데이터 시트보기 (PDF) - Intersil
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ICL3244EIA Datasheet PDF : 20 Pages
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Pinouts (Continued)
ICL3224E, ICL3226E, ICL3244E
ICL3244E (SOIC, SSOP)
TOP VIEW
C2+ 1
C2- 2
V- 3
R1IN 4
R2IN 5
R3IN 6
R4IN 7
R5IN 8
T1OUT 9
T2OUT 10
T3OUT 11
T3IN 12
T2IN 13
T1IN 14
28 C1+
27 V+
26 VCC
25 GND
24 C1-
23 FORCEON
22 FORCEOFF
21 INVALID
20 R2OUTB
19 R1OUT
18 R2OUT
17 R3OUT
16 R4OUT
15 R5OUT
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.
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
TOUT
RIN
ROUT
ROUTB
INVALID
TTL/CMOS compatible transmitter Inputs.
±15kV ESD Protected, RS-232 level (nominally ±5.5V) transmitter outputs.
±15kV ESD Protected, RS-232 compatible receiver inputs.
TTL/CMOS level receiver outputs.
TTL/CMOS level, noninverting, always enabled receiver outputs.
Active low output that indicates if no valid RS-232 levels are present on any receiver input.
READY Active high output that indicates when the ICL32XXE is ready to transmit (i.e., V- ≤ -4V)
FORCEOFF Active low to shut down transmitters and on-chip power supply. This overrides any automatic circuitry and FORCEON (see Table 2).
FORCEON Active high input to override automatic powerdown circuitry thereby keeping transmitters active. (FORCEOFF must be high).
3
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