ICL3232ECBNZ Intersil, ICL3232ECBNZ Datasheet - Page 16
![IC 2DRVR/2RCVR RS232 3V 16-SOIC](/photos/5/65/56533/20-16-soic_sml.jpg)
ICL3232ECBNZ
Manufacturer Part Number
ICL3232ECBNZ
Description
IC 2DRVR/2RCVR RS232 3V 16-SOIC
Manufacturer
Intersil
Type
Transceiverr
Specifications of ICL3232ECBNZ
Number Of Drivers/receivers
2/2
Protocol
RS232
Voltage - Supply
3 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ICL3232ECBNZ
Manufacturer:
Intersil
Quantity:
1 728
Part Number:
ICL3232ECBNZ
Manufacturer:
INTERSIL
Quantity:
20 000
Company:
Part Number:
ICL3232ECBNZ-T
Manufacturer:
NEC
Quantity:
7 485
Part Number:
ICL3232ECBNZ-T
Manufacturer:
INTERSISL
Quantity:
20 000
Company:
Part Number:
ICL3232ECBNZ-T7A
Manufacturer:
Intersil
Quantity:
250
NOTE:
ICL3221E, ICL3223E
ICL3243E
RECEIVER
7. Applies only to the ICL3241E and ICL3243E.
The INVALID output always indicates whether or not a
valid RS-232 signal is present at any of the receiver
inputs (see Table 2), giving the user an easy way to
determine when the interface block should power
down. In the case of a disconnected interface cable
where all the receiver inputs are floating (but pulled to
GND by the internal receiver pull down resistors), the
INVALID logic detects the invalid levels and drives the
output low. The power management logic then uses
this indicator to power down the interface block.
Reconnecting the cable restores valid levels at the
receiver inputs, INVALID switches high, and the power
management logic wakes up the interface block.
INVALID can also be used to indicate the DTR or RING
INDICATOR signal, as long as the other receiver inputs
are floating, or driven to GND (as in the case of a
powered down driver). Connecting FORCEOFF and
FORCEON together disables the automatic power-down
feature, enabling them to function as a manual
SHUTDOWN input (see Figure 4).
PRESENT
SIGNAL
RS-232
INPUT?
Yes
Yes
Yes
Yes
Yes
Yes
AT
No
No
No
No
No
No
No
No
No
ICL3221E, ICL3222E, ICL3223E, ICL3232E, ICL3241E, ICL3243E
FORCEOFF
OR SHDN
INPUT
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
TABLE 2. POWER-DOWN AND ENABLE LOGIC TRUTH TABLE (Continued)
FORCEON
INPUT
16
H
H
X
X
X
X
H
X
X
L
L
L
L
L
L
INPUT
N/A
N/A
N/A
N/A
N/A
EN
H
H
H
H
H
L
L
L
L
L
TRANSMITTER
OUTPUTS
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
Active
Active
Active
Active
Active
Active
RECEIVER
OUTPUTS
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
Active
Active
Active
Active
Active
Active
Active
Active
FIGURE 2. POWER DRAIN THROUGH POWERED
POWERED
DOWN
OUTPUTS
(NOTE 7)
UART
GND
R
Active
Active
Active
Active
Active
V
OUTB
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
CC
DOWN PERIPHERAL
Rx
Tx
V
INVALID
OUTPUT
CC
SHDN = GND
H
H
H
H
H
H
V
L
L
L
L
L
L
L
L
L
OUT
= V
(Auto Power-Down Disabled)
Normal Operation
(Auto Power-Down Enabled)
Power-Down Due to Auto
Power-Down Logic
with Receiver Disabled
with Receiver Disabled
(Auto Power-Down Disabled)
(Auto Power-Down Enabled)
Power-Down Due to Auto
Power-Down Logic
Manual Power-Down
Normal Operation
Manual Power-Down
Manual Power-Down
Manual Power-Down
Manual Power-Down
Normal Operation
Normal Operation
Manual Power-Down
CC
RS-232 CHIP
OPERATION
MODE OF
V
OLD
CURRENT
FLOW
CC
February 22, 2010
FN4910.21