intersil ICL3207 DATA SHEET

®

www.BDTIC.com/Intersil

ICL3207, ICL3217

Data Sheet October 20, 2005

Low Power, +3V to +5.5V, 250kbps,
RS-232 Transmitters/Receivers

The Intersil ICL32X7 devices are 3.0V to 5.5V powered
RS-232 transmitters (five)/receivers (three) which meet
ElA/TIA-232 and V.28/V.24 specifications, even at
V

= 3.0V. Targeted applications are ISDN Terminal

CC

Adaptors, PDAs, Palmtops, peripherals, and notebook and
laptop computers where the low operational, and even lower
standby, power consumption is critical. The ICL3217’s
efficient on-chip charge pumps, coupled with an automatic
powerdown function, reduces the standby supply current to
a 1µA trickle. Small footprint packaging, and the use of
small, low value capacitors ensure board space savings as
well. Data rates greater than 250kbps are guaranteed at
worst case load conditions. This family is fully compatible
with 3.3V only systems, mixed 3.3V and 5.0V systems, and

5.0V only systems, and is a lower power, pin-for-pin
replacement for ‘207 and ‘237 type devices.

The ICL3217 features an automatic powerdown function
which powers down the on-chip power-supply and driver
circuits. This occurs when an attached peripheral device is
shut off or the RS-232 cable is removed, conserving system
power automatically, without changes to the hardware or
operating system. The ICL3217 powers up again when a
valid RS-232 voltage is applied to any receiver input.

Table 1 summarizes the features of the devices represented
by this data sheet, while application Note AN9863
summarizes the features of each device comprising the
ICL32XX 3V family.

FN4892.6

Features

• Pb-Free Plus Anneal Available (RoHS Compliant)
(see Ordering Information)

• ±15kV ESD Protected (Human Body Model)

• 5V Lower Power Replacement for MAX207, HIN207,
HIN237

• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V

• Latch-Up Free

• On-Chip Voltage Converters Require Only Four External

0.1µF Capacitors

• Automatic Powerdown (I

• Receiver Hysteresis For Improved Noise Immunity

• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps

• Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . . 6V/µs

• Wide Power Supply Range . . . . . . . Single +3V to +5.5V

= 1µA, ICL3217 Only)

CC

Applications

• Any System Requiring RS-232 Communication Ports

- Battery Powered, Hand-Held, and Portable Equipment

- Laptop Computers, Notebooks, Palmtops

- Modems, Printers and other Peripherals

- ISDN Terminal Adaptors and Set Top Boxes

Related Literature

• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”

TABLE 1. SUMMARY OF FEATURES

PART NUMBER

ICL3207 5 3 0 250 NO NO NO
ICL3217 5 3 0 250 NO NO YES

NO. OF

Tx.

NO. OF

Rx.

1

NO. OF MONITOR

Rx. (R

)

OUTB

1-888-INTERSIL or 1-888-468-3774

DATA RATE

(kbps)

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Rx. ENABLE
FUNCTION?

| Intersil (and design) is a registered trademark of Intersil Americas Inc.

Copyright © Intersil Americas Inc. 2001, 2004-2005. All Rights Reserved

MANUAL

POWER-

DOWN?

AUTOMATIC

POWERDOWN

FUNCTION?

ICL3207, ICL3217

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Ordering Information

TEMPERATURE

PART NUMBER* PART MARKING

ICL3207C A ICL3207C A 0 to 70 24 Ld SSOP M24.209
ICL3207CAZ (Note) ICL3207CAZ 0 to 70 24 Ld SSOP (Pb-free) M24.209
ICL3207 C B ICL3207C B 0 to 70 24 Ld SOIC M24.3
ICL3207CBZ (Note) ICL3207CBZ 0 to 70 24 Ld SOIC (Pb-free) M24.3
ICL3207I A ICL3207I A -40 to 85 24 Ld SSOP M24.209
ICL3207IAZ (Note) ICL3207IAZ -40 to 85 24 Ld SSOP (Pb-free) M24.209
ICL3217C A ICL3217C A 0 to 70 24 Ld SSOP M24.209
ICL3217CAZ (Note) ICL3217CAZ 0 to 70 24 Ld SSOP (Pb-free) M24.209
ICL3217 C B ICL3217C B 0 to 70 24 Ld SOIC M24.3
ICL3217CBZ (Note) ICL3217CBZ 0 to 70 24 Ld SOIC (Pb-free) M24.3
ICL3217I A ICL3217I A -40 to 85 24 Ld SSOP M24.209
ICL3217IAZ (Note) ICL3217IAZ -40 to 85 24 Ld SSOP (Pb-free) M24.209
ICL3217I B ICL3217 I B -40 to 85 24 Ld SOIC M24.3
ICL3217IBZ (Note) ICL3217IBZ -40 to 85 24 Ld SOIC (Pb-free) M24.3
*Most surface mount devices are available on tape and reel; add “-T” to suffix.

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are
MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

RANGE (°C) PACKAGE PKG. DWG. #

Pinout

ICL3207, ICL3217 (SOIC, SSOP)

TOP VIEW

T3
T1
T2

R1

OUT
OUT
OUT

R1

OUT

T2
T1

GND

V

CC

C1+

V+

C1-

1
2
3
4

IN

5
6

IN

7

IN

8

9
10
11
12

T4

24

R2

23

R2

22

T5

21

T5

20

T4

19

T3

18

R3

17

R3

16

V-

15
14

C2­C2+

13

OUT

IN

OUT
IN
OUT
IN
IN

OUT

IN

Pin Descriptions

PIN FUNCTION

System power supply input (3.0V to 5.5V).

V

CC

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 connecte d to this lead .

C1- External capacitor (voltage doubler) is connecte d to this lead .

C2+ External capacitor (voltage inverter) is connected to this le ad.

C2- External capacitor (voltage inverter) is connected to this le ad.

TTL/CMOS compatible transmitter Inputs.

T

IN

RS-232 level (nominally ±5.5V) transmitter Outputs.

T

OUT

RS-232 compatible receiver inputs.

R

IN

TTL/CMOS level receiver outputs.

R

OUT

2

Typical Operating Circuit

www.BDTIC.com/Intersil

V

CC

TTL/CMOS

LOGIC LEVELS

ICL3207, ICL3217

ICL32X7

†

+

0.1µF
10

C1+

+

C

†

1

12

C1-

13

C

†

2

T1

IN

T2

IN

T3

IN

T4

IN

T5

IN

C2+

+

14

C2-

7

6

18

19

21

9

V

CC

T

1

T

2

T

3

T

4

T

5

C3 (OPTIONAL CONNECTION)

+

11

V+

V-

+

C

†

3

15

C

†

4

+

2

T1

OUT

3

T2

OUT

1

T3

24

T4

20

T5

OUT

OUT

OUT

RS-232
LEVELS

† - FOR V

FOR V

R1

R2

R3

= 3.3V, C1 - C4 = 0.1µF or 0.22µF

CC

= 5V, C1 - C4 = 0.1µF OR 1µF

CC

OUT

OUT

OUT

5kΩ

5kΩ

5kΩ

4

R1

IN

23

R2

16

R3

RS-232

IN

LEVELS

IN

5

R

R

2

R

3

GND

1

8

22

17

3

ICL3207, ICL3217

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Absolute Maximum Ratings Thermal Information

VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V

V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V

V- to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V to -7V

V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V

Input Voltages

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V

T

IN

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25V

R

IN

Output Voltages

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±13.2V

T

OUT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VCC + 0.3V

R

OUT

Short Circuit Duration

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous

T

OUT

ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

1. θ

JA

Thermal Resistance (Typical, Note 1) θ

24 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 74

24 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 100

Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C

Maximum Storage Temperature Range . . . . . . . . . .-65°C to 150°C

Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . 300°C

(Lead Tips Only)

(°C/W)

JA

Operating Conditions

Temperature Range

ICL32X7CX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C

ICL32X7IX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 85°C

Electrical Specifications Test Conditions: V

Typicals are at T

PARAMETER TEST CONDITIONS

DC CHARACTERISTICS

Supply Current, Automatic
Powerdown

Supply Current,
Automatic Powerdown Disabled

TRANSMITTER INPUTS AND RECEIVER OUTPUTS

Input Logic Threshold Low T
Input Logic Threshold High T

Input Leakage Current T
Output Leakage Current

(ICL3217 Only)
Output Voltage Low I
Output Voltage High I
AUTOMATIC POWERDOWN (ICL3217 Only)
Receiver Input Thresholds to

Enable Transmitters
Receiver Input Thresholds to

Disable Transmitters
Receiver Threshold to Transmitters

Enabled Delay (t
Receiver Positive or Negative

Threshold to Transmitters
Disabled Delay

RECEIVER INPUTS

Input Voltage Range Full -25 - 25 V
Input Threshold Low V

Input Threshold High V

WU

)

Open (ICL3217 Only) 25 - 1.0 10 µA

All R

IN

All Outputs Unloaded 25 - 0.3 1.0 mA

IN
IN

IN

= 1.6mA Full - - 0.4 V

OUT

= -1.0mA Full VCC-0.6 VCC-0.1 - V

OUT

ICL3217 Powers Up (Figure 4) Full -2.7 - 2.7 V

ICL3217 Powers Down (Figure 4) Full -0.3 - 0.3 V

= 3.3V 25 0.6 1.2 - V

CC

V

= 5.0V 25 0.8 1.5 - V

CC

= 3.3V 25 - 1.5 2.4 V

CC

= 5.0V 25 - 1.8 2.4 V

V

CC

= 3V to 5.5V, C1 - C4 = 0.1µF; Unless Otherwise Specified.

CC

= 25°C

A

TEMP

(°C) MIN TYP MAX UNITS

Full - - 0.8 V
VCC = 3.3V Full 2.0 - - V
V

= 5.0V Full 2.4 - - V

CC

Full - ±0.01 ±1.0 µA

Full - ±0.05 ±10 µA

25 - 100 - µs

25 - 30 - µs

4

ICL3207, ICL3217

www.BDTIC.com/Intersil

Electrical Specifications Test Conditions: V

Typicals are at T

PARAMETER TEST CONDITIONS

Input Hysteresis 25 - 0.3 - V
Input Resistance 25357kΩ

TRANSMITTER OUTPUTS

Output Voltage Swing All Transmitter Outputs Loaded with 3kΩ to Ground Full ±5.0 ±5.4 - V
Output Resistance V
Output Short-Circuit Current Full - ±35 ±60 mA
Output Leakage Current

(ICL3217 Only)

TIMING CHARACTERISTICS

Maximum Data Rate
(One Transmitter Switching)

Receiver Propagation Delay Receiver Input to Receiver

Transmitter Skew t
Receiver Skew t
Transition Region Slew Rate V

ESD PERFORMANCE

RS-232 Pins (T

All Other Pins Human Body Model 25 - ±2-kV

, RIN) Human Body Model 25 - ±15 - kV

OUT

= V+ = V- = 0V, Transmitter Output = ±2V Full 300 10M - Ω

CC

V

= ±12V, VCC= 0V or 3V to 5.5V

OUT

In Automatic Powerdown

V

= 3.15V, C1 - C4 = 0.1µF, RL = 3kΩ, CL = 1000pF Full 250 500 - kbps

CC

V

= 3.0V, C1 - C4 = 0.22µF, RL = 3kΩ, CL = 1000pF Full 250 286 - kbps

CC

V

≥ 4.5V, C1 - C4 = 0.1µF, RL = 3kΩ, CL = 1000pF Full 250 310 - kbps

CC

Output, C

PHL
PHL

CC

Measured From +3V to -3V or -3V
to +3V

IEC61000-4-2 Contact Discharge 25 - ±8-kV
IEC61000-4-2 Air Gap Discharge 25 - ±6-kV

= 150pF

L

- t

PLH

- t

PLH

= 3.3V, RL=3kΩ to 7kΩ,

= 3V to 5.5V, C1 - C4 = 0.1µF; Unless Otherwise Specified.

CC

= 25°C (Continued)

A

TEMP

(°C) MIN TYP MAX UNITS

Full - - ±25 µA

t

PHL

t

PLH

CL = 200pF to 2500pF 25 4 15 30 V/µs

= 200pF to 1000pF 25 6 15 30 V/µs

C

L

25 - 0.3 - µs

25 - 0.3 - µs
Full - 200 1000 ns
Full - 100 500 ns

Detailed Description

The ICL32X7 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: The charge pump, the transmitters, and the
receivers.

Charge-Pump

Intersil’s new ICL32XX family utilizes regulated on-chip dual
charge pumps as voltage doublers, and voltage inverters to
generate ±5.5V transmitter supplies from a V
low as 3.0V. 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
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.

supply as

CC

= 3.3V. See

CC

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.

ICL3217 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

≥ 3.3V, RL=3kΩ, and CL= 250pF, one

CC

transmitter easily operates at 800kbps.
Transmitter inputs float if left unconnected, and may cause

I

increases. Connect unused inputs to GND for the best

CC

performance.

≥ 3.0V, with one

CC

5

ICL3207, ICL3217

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Receivers

The ICL32X7 each contain inverting receivers that convert
RS-232 signals to CMOS output levels and accept inputs up
to ±25V while presenting the required 3kΩ to 7kΩ input
impedance (see Figure 1) even if the power is off
(V

= 0V). The receivers’ Schmitt trigger input stage uses

CC

hysteresis to increase noise immunity and decrease errors
due to slow input signal transitions.

Receivers on the ICL3207 are always active. The ICL3217
receivers disable when in the automatic powerdown state,
thereby eliminating the possible current path through a
shutdown peripheral’s input protection diode (see Figures 2
and 3).

V

CC

R

XIN

-25V ≤ V

FIGURE 1. INVERTING RECEIVER CONNECTIONS

POWERED

DOWN

UART

GND

FIGURE 2. POWER DRAIN THROUGH POWERED DOWN

≤ +25V

RIN

GND

V

CC

Rx

Tx

PERIPHERAL

V

CC

V

OUT = VCC

SHDN = GND

5kΩ

R

XOUT

GND ≤ V

ROUT

V

CC

CURRENT
FLOW

OLD

RS-232 CHIP

≤ V

CC

Low Power Operation

These 3V devices require a nominal supply current of

0.3mA, even at V
powerdown mode). This is considerably less than the 11mA
current required by comparable 5V RS-232 devices,
allowing users to reduce system power simply by replacing
the old style device with the ICL3207.

Low Power, Pin Compatible Replacement

Pin compatibility with existing 5V products (e.g., MAX207),
coupled with the wide operating supply range, make the
ICL32X7 potential lower power, higher performance drop-in
replacements for existing ‘2X7 5V applications. As long as
the ±5V RS-232 output swings are acceptable, the ICL32X7
devices should work in most 5V applications.

= 5.5V, during normal operation (not in

CC

V

CC

TRANSITION

DETECTOR

TO

WAKE-UP

LOGIC

V

CC

R

X

POWERED

DOWN

UART

FIGURE 3. DISABLED RECEIVERS PREVENT POWER DRAIN

T

X

* IN AUTOMATIC

POWERDOWN

V

OUT =

HI-Z*

ICL3217

V-

When replacing a ‘207 or ‘237 device in an existing 5V
application, it is acceptable to terminate C

to VCC as shown

3

on the “Typical Operating Circuit”. Nevertheless, terminate
C

to GND if possible, as slightly better performance results

3

from this configuration.

Automatic Powerdown (ICL3217 Only)

Even greater power savings is available by using the
ICL3217 which features an automatic powerdown function.
When no valid RS-232 voltages (see Figure 4) are sensed
on any receiver input for 30µs, the ICL3217 automatically
enters its powerdown state (see Figure 5). In powerdown,
supply current drops to 1µA, because the on-chip charge
pump turns off (V+ collapses to V
and the receiver and transmitter outputs three-state (see
Table 2). This micro-power mode makes the ICL3217 ideal
for battery powered and portable applications. Invalid
receiver levels occur whenever the driving peripheral’s
outputs are shut off (powered down) or when the RS-232
interface cable is disconnected. The ICL3217 powers back
up whenever it detects a valid RS-232 voltage level on any
receiver input (such as when the RS-232 cable is
reconnected). The time to rec o ve r fr o m au t o m at i c po w e r do w n
mode is typically 100µs.

TABLE 2. ICL3217 AUTOMATIC POWERDOWN OPERATION

RS-232 SIGNAL

PRESENT AT

RECEIVER

INPUT?

YES Active Active Normal

NO High-Z High-Z Powerdown

TRANSMITTER

OUTPUTS

, V- collapses to GND),

CC

RECEIVER

OUTPUTS

MODE

OF

OPERATION

Operation

Due to Auto
Powerdown
Logic

6

ICL3207, ICL3217

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2.7V

0.3V

-0.3V

-2.7V

FIGURE 4. DEFINITION OF VALID RS-232 RECEIVER

RECEIVER

TRANSMITTER

OUTPUTS

FIGURE 5. AUTOMATIC POWERDOWN TIMING DIAGRAM

VALID RS-232 LEVEL - ICL3217 IS ACTIVE

INDETERMINATE - POWERDOWN MAY OR

INVALID LEVEL - POWERDOWN OCCURS AFTER 30µs

INDETERMINATE - POWERDOWN MAY OR

VALID RS-232 LEVEL - ICL3217 IS ACTIVE

LEVELS

INPUTS

V+

V

CC

0

V-

MAY NOT OCCUR

MAY NOT OCCUR

AUTOPWDN

INVALID

}

REGION

PWR UP (tWU)

This automatic powerdown feature provides additional
system power savings without changes to the existing
operating system or hardware.

Utilizing power management circuitry, to power down the
rest of the communication circuitry (e.g., the UART) when
the ICL3217 powers down, produces even greater power
savings. Connecting a transition detector to the V- pin (see
Figure 3) is an easy way for the power management logic to
determine when the ICL3217 enters and exits powerdown.

Capacitor Selection

The charge pumps require 0.1µF, or greater, capacitors for

3.3V operation. With 0.1µF capacitors, five percent tolerance
supplies (e.g., 3.14V minimum) deliver greater than ±5V
transmitter swings at full data rate, while ten percent
tolerance supplies (e.g., 2.97V minimum) deliver ±4.95V
transmitter swings. If greater than ±5V transmitter swings
are required with a ten percent tolerance 3.3V supply,

0.22µF capacitors are recommended (see Table 3). Existing
5V applications typically utilize either 0.1µF or 1µF
capacitors, and the ICL32X7E works well with either value.
New 5V designs should use 0.22µF capacitors for the best
results. For other supply voltages refer to Table 3 for
capacitor values. Do not use values smaller than those listed

in Table 3. Increasing the capacitor values (by a factor of 2)
reduces ripple on the transmitter outputs and slightly
reduces power consumption. C
increased without increasing C
increase C

without also increasing C2, C3, and C4 to

1

maintain the proper ratios (C

, C3, and C4 can be

2

’s value, however, do not

1

to the other capacitors).

1

When using minimum required capacitor values, make sure
that capacitor values do not degrade excessively with
temperature. If in doubt, use capacitors with a larger nominal
value. The capacitor’s equivalent series resistance (ESR)
usually rises at low temperatures and it influences the
amount of ripple on V+ and V-

TABLE 3. REQUIRED CAPACITOR VALUES

VCC (V) C1 (µF) C2, C3, C4 (µF)

3.15 to 3.6 0.1 0.1

3.0 to 3.6 0.22 0.22

4.5 to 5.5 0.1 to 1.0 0.1 to 1.0

3.0 to 5.5 0.22 0.22

.

Power Supply Decoupling

In most circumstances a 0.1µF bypass capacitor is adequate.
In applications that are particularly sensitive to power supply
noise, decouple V
value as the charge-pump capacitor C

to ground with a capacitor of the same

CC

. Connect the bypass

1

capacitor as close as possible to the IC.

Transmitter Outputs when Exiting
Powerdown

Figure 6 shows the response of two ICL3217 transmitter
outputs when exiting powerdown mode. As they activate, the
two transmitter outputs properly go to opposite RS-232
levels, with no glitching, ringing, nor undesirable transients.
Each transmitter is loaded with 3kΩ in parallel with 2500pF.
Note that the transmitters enable only when the magnitude
of the supplies exceed approximately 3V.

.

5V/DIV

2V/DIV

FIGURE 6. TRANSMITTER OUTPUTS WHEN EXITING

RX

IN

VCC = +3.3V
C1 - C4 = 0.1µF

TIME (20µs/DIV.)

POWERDOWN (ICL3217ONLY)

T1

T2

7

ICL3207, ICL3217

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High Data Rates

The ICL32XX maintain the RS-232 ±5V minimum transmitter
output voltages even at high data rates. Figure 7 details a
transmitter loopback test circuit, and Figure 8 illustrates the
loopback test result at 120kbps. For this test, all transmitters
were simultaneously driving RS-232 loads in parallel with
1000pF, at 120kbps. Figure 9 shows the loopback results for
a single transmitter driving 1000pF and an RS-232 load at
250kbps. The static transmitters were also loaded with an
RS-232 receiver.

V

CC

0.1µF

+

C

1

+

C

2

FIGURE 7. TRANSMITTER LOOPBACK TEST CIRCUIT

5V/DIV.

T1

IN

C1+

C1-

C2+

C2-

T

IN

R

OUT

+

V

CC

ICL32X7

T

OUT

V+

V-

R

IN

5k

+

C

3

C

4

+

1000pF

5V/DIV.

T1

IN

T1

OUT

R1

OUT

VCC = +3.3V
C1 - C4 = 0.1µF

2µs/DIV.

FIGURE 9. LOOPBACK TEST AT 250kbps

Interconnection with 3V and 5V Logic

The ICL32X7 directly interface with most 5V logic families,
including ACT and HCT CMOS. See Table 4 for more
information on possible combinations of interconnections.

TABLE 4. LOGIC FAM ILY COMPATIBILITY WITH VARIOUS

SUPPLY VOLTAGES

SYSTEM

POWER-SUPPLY

VOLTAGE

(V)

3.3 3.3 Compatible with all CMOS

5 5 Compatible with all TTL and

5 3.3 Compatible with ACT and HCT

V

CC

SUPPLY

VOLTAGE

(V) COMPATIBILITY

families.

CMOS logic families.

CMOS, and with TTL.
Incompatible with AC, HC, or
CD4000 CMOS.

T1

OUT

R1

OUT

VCC = +3.3V
C1 - C4 = 0.1µF

5µs/DIV.

FIGURE 8. LOOPBACK TEST AT 120kbps

8

ICL3207, ICL3217

www.BDTIC.com/Intersil

Typical Performance Curves V

6.0

4.0

2.0
1 TRANSMITTER AT 250kbps
OTHER TRANSMITTERS AT 30kbps

0

-2.0

-4.0

TRANSMITTER OUTPUT VOLTAGE (V)

-6.0
1000 2000 3000 4000 50000

LOAD CAPACITANCE (pF)

= 3.3V, TA = 25°C

CC

V

+

OUT

V

-

OUT

FIGURE 10. TRANSMITTER OUTPUT VOLTAGE vs LOAD

CAPACITANCE

55

1 TRANSMITTER SWITCHING

50

45

40

35

30

250kbps

120kbps

25

20

15

SLEW RATE (V/µs)

10

5

0 1000 2000 3000 4000 5000

-SLEW

+SLEW

-SLEW

LOAD CAPACITANCE (pF)

FIGURE 11. SLEW RATE vs LOAD CAPACITANCE

3.5

3.0

2.5

2.0

1.5

NO LOAD
ALL OUTPUTS STATIC

25

SUPPLY CURRENT (mA)

20

15

0 1000 2000 3000 4000 5000

LOAD CAPACITANCE (pF)

20kbps

FIGURE 12. SUPPLY CURRENT vs LOAD CAPACITANCE

WHEN TRANSMITTING DATA

Die Characteristics

SUBSTRATE POTENTIAL (POWERED UP):

GND

TRANSISTOR COUNT:

ICL3207: 469
ICL3217: 488

PROCESS:

Si Gate CMOS

1.0

SUPPLY CURRENT (mA)

0.5

0

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
SUPPLY VOLTAGE (V)

FIGURE 13. SUPPLY CURRENT vs SUPPLY VOLTAGE

9

ICL3207, ICL3217

www.BDTIC.com/Intersil

Shrink Small Outline Plastic Packages (SSOP)

N

INDEX
AREA

123

-A-

E

-B-

SEATING PLANE

D

A

-C-

0.25(0.010) BM M

H

GAUGE

PLANE

0.25

0.010

L

α

e

B

0.25(0.010) C AM BS

NOTES:

1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of
Publication Number 95.

2. Dimensioning and tolerancing per ANSI Y14.5M-1982.

3. Dimension “D” does not include mold flash, protrusions or gate burrs.
Mold flash, protrusion and gate burrs shall not exceed 0.20mm
(0.0078 inch) per side.

4. Dimension “E” does not include interlead flash or protrusions. Inter­lead flash and protrusions shall not exceed 0.20mm (0.0078 inch) per
side.

5. The chamfer on the body is optional. If it is not present, a visual index
feature must be located within the crosshatched area.

6. “L” is the length of terminal for soldering to a substrate.

7. “N” is the number of terminal positions.

8. Terminal numbers are shown for reference only.

9. Dimension “B” does not include dambar protrusion. Allowable dambar
protrusion shall be 0.13mm (0.005 inch) total in excess of “B” dimen­sion at maximum material condition.

10. Controlling dimension: MILLIMETER. Converted inch dimensions
are not necessarily exact.

M

A1

0.10(0.004)

A2

C

M24.209 (JEDEC MO-150-AG ISSUE B)

24 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE

INCHES MILLIMETERS

SYMBOL

A - 0.078 - 2.00 ­A1 0.002 - 0.05 - ­A2 0.065 0.072 1.65 1.85 -

B 0.009 0.014 0.22 0.38 9

C 0.004 0.009 0.09 0.25 ­D 0.312 0.334 7.90 8.50 3
E 0.197 0.220 5.00 5.60 4
e 0.026 BSC 0.65 BSC ­H 0.292 0.322 7.40 8.20 ­L 0.022 0.037 0.55 0.95 6
N24 247

o

α

0

o

8

o

0

NOTESMIN MAX MIN MAX

o

8

Rev. 1 3/95

-

10

ICL3207, ICL3217

www.BDTIC.com/Intersil

Small Outline Plastic Packages (SOIC)

N

INDEX
AREA

123

-A-

E

-B-

SEATING PLANE

D

A

-C-

0.25(0.010) BM M

H

L

h x 45

o

α

e

B

0.25(0.010) C AM BS

NOTES:

1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of
Publication Number 95.

2. Dimensioning and tolerancing per ANSI Y14.5M-1982.

3. Dimension “D” does not include mold flash, protrusions or gate burrs.
Mold flash, protrusion and gate burrs shall not exceed 0.15mm
(0.006 inch) per side.

4. Dimension “E” does not include interlead flash or protrusions. Inter­lead flash and protrusions shall not exceed 0.25mm (0.010 inch) per
side.

5. The chamfer on the body is optional. If it is not present, a visual index
feature must be located within the crosshatched area.

6. “L” is the length of terminal for soldering to a substrate.

7. “N” is the number of terminal positions.

8. Terminal numbers are shown for reference only.

9. The lead width “B”, as measured 0.36mm (0.014 inch) or greater
above the seating plane, shall not exceed a maximum value of

0.61mm (0.024 inch)

10. Controlling dimension: MILLIMETER. Converted inch dimensions
are not necessarily exact.

M

A1

C

0.10(0.004)

M24.3 (JEDEC MS-013-AD ISSUE C)

24 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE

INCHES MILLIMETERS

SYMBOL

A 0.0926 0.1043 2.35 2.65 -

A1 0.0040 0.0118 0.10 0.30 -

B 0.013 0.020 0.33 0.51 9
C 0.0091 0.0125 0.23 0.32 ­D 0.5985 0.6141 15.20 15.60 3
E 0.2914 0.2992 7.40 7.60 4
e 0.05 BSC 1.27 BSC ­H 0.394 0.419 10.00 10.65 ­h 0.010 0.029 0.25 0.75 5
L 0.016 0.050 0.40 1.27 6
N24 247

o

α

0

o

8

o

0

o

8

Rev. 0 12/93

NOTESMIN MAX MIN MAX

-

All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.

Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality

Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is ca utioned to verify that data she ets are current before pl acing orders. Information fur nished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or othe rwise under any patent or patent rights of Intersil or its subsidiaries.

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11