ICL3217ECB Intersil, ICL3217ECB Datasheet - Page 5

• Manufacturer Part Number: ICL3217ECB
• Description: IC TXRX RS-232 3-5.5V ESD 24SOIC
• Manufacturer: Intersil
• Type: Transceiverr

Specifications of ICL3217ECB

• Number Of Drivers/receivers: 5/3
• Protocol: RS232
• Voltage - Supply: 3 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Detailed Description
The ICL32X7E interface ICs operate from a single +3V to
+5.5V power supply, guarantee a 250kbps minimum data
rate, require only four small external 0.1µF capacitors,
feature low power consumption, and meet all ElA RS-232C
and V.28 specifications. The circuit is divided into three
sections: charge pump, transmitters and receivers.
Charge-Pump
Intersil’s new ICL32XXE family utilizes regulated on-chip
dual charge pumps as voltage doublers, and voltage
inverters to generate ±5.5V transmitter supplies from a V
supply as low as 3V. This allows these devices to maintain
RS-232 compliant output levels over the ±10% tolerance
range of 3.3V powered systems. The efficient on-chip power
supplies require only four small, external 0.1µF capacitors
for the voltage doubler and inverter functions at V
See the Capacitor Selection section, and Table 3 for
capacitor recommendations for other operating conditions.
The charge pumps operate discontinuously (i.e., they turn off
as soon as the V+ and V- supplies are pumped up to the
nominal values), resulting in significant power savings.
Electrical Specifications
Input Hysteresis
Input Resistance
TRANSMITTER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
Output Leakage Current
(ICL3217E Only)
TIMING CHARACTERISTICS
Maximum Data Rate
(One Transmitter Switching)
Receiver Propagation Delay
Transmitter Skew
Receiver Skew
Transition Region Slew Rate
ESD PERFORMANCE
RS-232 Pins (T
All Other Pins
PARAMETER
OUT
, R
IN
)
5
Test Conditions: V
Typicals are at T
All Transmitter Outputs Loaded with 3kΩ to Ground
V
V
In Automatic Powerdown
V
V
V
Receiver Input to Receiver
Output, C
t
t
V
Measured From +3V to -3V or -3V
to +3V
IEC61000-4-2, Air-Gap Discharge Method
IEC61000-4-2, Contact Discharge Method
Human Body Model
Human Body Model
PHL
PHL
CC
OUT
CC
CC
CC
CC
= V+ = V- = 0V, Transmitter Output = ±2V
= 3.15V, C
= 3.0V, C
≥ 4.5V, C
= 3.3V, R
- t
- t
= ±12V, V
PLH
PLH
L
= 150pF
1
1
L
A
1
- C
- C
= 3kΩ to 7kΩ,
CC
CC
- C
= 25°C (Continued)
CC
TEST CONDITIONS
4
4
ICL3207E, ICL3217E
= 0V or 3V to 5.5V
4
= 0.1µF, R
= 3V to 5.5V, C
= 0.22µF, R
= 0.1µF, R
= 3.3V.
CC
L
L
L
= 3kΩ, C
= 3kΩ, C
= 3kΩ, C
t
t
C
C
PHL
PLH
1
L
L
- C
= 200pF to 2500pF
= 200pF to 1000pF
4
Transmitters
The transmitters are proprietary, low dropout, inverting
drivers that translate TTL/CMOS inputs to EIA/TIA-232
output levels. Coupled with the on-chip ±5.5V supplies,
these transmitters deliver true RS-232 levels over a wide
range of single supply system voltages.
ICL3217E transmitter outputs disable and assume a high
impedance state when the device enters the automatic
powerdown mode. These outputs may be driven to ±12V
when disabled.
Both devices guarantee a 250kbps data rate for full load
conditions (3kΩ and 1000pF), V
transmitter operating at full speed. Under more typical
conditions of V
transmitter easily operates at 800kbps.
Transmitter inputs float if left unconnected, and may cause
I
performance.
CC
L
= 0.1µF; Unless Otherwise Specified.
L
L
= 1000pF
= 1000pF
= 1000pF
increases. Connect unused inputs to GND for the best
CC
TEMP
≥ 3.3V, R
(°C)
Full
Full
Full
Full
Full
Full
Full
Full
Full
25
25
25
25
25
25
25
25
25
25
±5.0
MIN
300
250
250
250
L
3
4
6
-
-
-
-
-
-
-
-
-
-
-
= 3kΩ, and C
CC
≥ 3.0V, with one
TYP
±5.4
10M
±35
500
286
310
200
100
±15
±15
0.3
0.3
0.3
15
15
±8
±2
5
-
L
= 250pF, one
MAX
1000
±60
±25
500
30
30
7
-
-
-
-
-
-
-
-
-
-
-
-
UNITS
kbps
kbps
kbps
V/µs
V/µs
mA
kΩ
µA
µs
µs
kV
kV
kV
kV
ns
ns
V
V
Ω