ICL3207IA [INTERSIL]
Low Power, +3V to +5.5V, 250kbps, RS-232 Transmitters/Receivers; 低功耗， + 3V至+ 5.5V ， 250kbps的， RS - 232发射器/接收器
| 型号： | ICL3207IA |
| 厂家： | 
Intersil |
| 描述： | Low Power, +3V to +5.5V, 250kbps, RS-232 Transmitters/Receivers |
| 文件： | 总11页 (文件大小：288K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICL3207, ICL3217
®
Data Sheet
J uly 2004
FN4892.5
Low Power, +3V to +5.5V, 250kbps ,
RS-232 Trans mitters /Receivers
Features
• Pb-free Available as an Option (see Ordering Info)
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
• ±15kV ESD Protected (Human Body Model)
• 5V Lower Power Replacement for MAX207, HIN207,
HIN237
V
= 3.0V. Targeted applications are ISDN Terminal
CC
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• Latch-Up Free
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.
• On-Chip Voltage Converters Require Only Four External
0.1µF Capacitors
• Automatic Powerdown (I
CC
= 1µA, ICL3217 Only)
• 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
Applications
• Any System Requiring RS-232 Communication Ports
- Battery Powered, Hand-Held, and Portable Equipment
- Laptop Computers, Notebooks, Palmtops
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.
- 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 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.
TABLE 1. SUMMARY OF FEATURES
MANUAL
POWER-
DOWN?
AUTOMATIC
POWERDOWN
FUNCTION?
NO. OF NO. OF NO. OF MONITOR DATA RATE
Rx. ENABLE
FUNCTION?
PART NUMBER
ICL3207
Tx.
Rx.
Rx. (R
)
(kbps)
OUTB
5
3
0
250
NO
NO
NO
NO
NO
ICL3217
5
3
0
250
YES
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2001, 2004. All Rights Reserved
1
ICL3207, ICL3217
Pinout
Ordering Information
ICL3207, ICL3217 (SOIC, SSOP)
TEMP.
RANGE (°C)
PKG.
DWG. #
TOP VIEW
PART NO.*
ICL3207CA
PACKAGE
24 Ld SSOP
0 to 70
M24.209
T3
T1
T2
1
2
3
4
5
6
7
8
9
24 T4
OUT
OUT
OUT
OUT
ICL3207CAZ (Note)
ICL3207CB
0 to 70
24 Ld SSOP (Pb-free) M24.209
24 Ld SOIC M24.3
24 Ld SOIC (Pb-free) M24.3
M24.209
-40 to 85 24 Ld SSOP (Pb-free) M24.209
23 R2
IN
R2
T5
22
21
20
19
18
17
16
OUT
0 to 70
R1
IN
IN
ICL3207CBZ (Note)
ICL3207IA
0 to 70
R1
T5
T4
T3
OUT
OUT
IN
-40 to 85 24 Ld SSOP
T2
IN
ICL3207IAZ (Note)
ICL3217CA
T1
IN
IN
R3
R3
GND
OUT
IN
0 to 70
0 to 70
0 to 70
0 to 70
24 Ld SSOP
24 Ld SSOP (Pb-free) M24.209
24 Ld SOIC M24.3
24 Ld SOIC (Pb-free) M24.3
M24.209
-40 to 85 24 Ld SSOP (Pb-free) M24.209
-40 to 85 24 Ld SOIC M24.3
M24.209
V
CC
ICL3217CAZ (Note)
ICL3217CB
C1+ 10
V+ 11
15 V-
14 C2-
13 C2+
ICL3217CBZ (Note)
ICL3217IA
C1- 12
-40 to 85 24 Ld SSOP
ICL3217IAZ (Note)
ICL3217IB
Pin Des criptions
*Most surface mount devices are available on tape and reel; add
“-T” to suffix.
PIN
FUNCTION
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).
V
CC
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which is 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-020B.
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.
T
TTL/CMOS compatible transmitter Inputs.
RS-232 level (nominally ±5.5V) transmitter Outputs.
RS-232 compatible receiver inputs.
IN
T
OUT
R
IN
R
TTL/CMOS level receiver outputs.
OUT
2
ICL3207, ICL3217
Typical Operating Circuit
ICL32X7
C
(OPTIONAL CONNECTION)
3
V
†
CC
+
9
0.1µF
10
+
12
V
11
15
C1+
CC
+
+
C †
V+
V-
1
C †
3
C1-
13
+
14
C2+
C †
2
C †
4
C2-
T
T
1
2
7
2
3
T1
T1
IN
OUT
6
T2
T2
IN
OUT
T
3
1
18
T3
T4
RS-232
LEVELS
T3
IN
OUT
OUT
T
4
24
20
19
21
T4
IN
TTL/CMOS
LOGIC LEVELS
T
5
T5
T5
IN
OUT
4
5
22
17
R1
R1
IN
OUT
5kΩ
R
1
2
3
23
16
R2
R3
R2
RS-232
LEVELS
IN
IN
OUT
OUT
5kΩ
5kΩ
R
R
R3
GND
† - FOR V
= 3.3V, C - C = 0.1µF or 0.22µF
1 4
CC
CC
FOR V
= 5V, C - C = 0.1µF OR 1µF
1 4
8
3
ICL3207, ICL3217
Absolute Maximum Ratings
Thermal Information
V
to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
Thermal Resistance (Typical, Note 1)
θ
(°C/W)
JA
CC
V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
V- to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V to -7V
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Input Voltages
24 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . .
24 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . .
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)
74
100
T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
IN
R
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25V
IN
Output Voltages
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±13.2V
T
OUT
Operating Conditions
R
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to V + 0.3V
CC
OUT
Short Circuit Duration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Temperature Range
ICL32X7CX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
ICL32X7IX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 85°C
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:
1. θ is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
JA
Electrical Specifications Test Conditions: V = 3V to 5.5V, C - C = 0.1µF; Unless Otherwise Specified.
CC
1
4
Typicals are at T = 25°C
A
TEMP
(°C)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
Supply Current, Automatic
Powerdown
All R Open (ICL3217 Only)
25
25
-
-
1.0
0.3
10
µA
IN
Supply Current,
All Outputs Unloaded
1.0
mA
Automatic Powerdown Disabled
TRANSMITTER INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold Low
Input Logic Threshold High
T
T
Full
Full
Full
Full
Full
-
2.0
2.4
-
-
0.8
-
V
V
IN
IN
V
V
= 3.3V
= 5.0V
-
CC
CC
-
-
V
Input Leakage Current
T
±0.01
±0.05
±1.0
±10
µA
µA
IN
Output Leakage Current
(ICL3217 Only)
-
Output Voltage Low
Output Voltage High
I
I
= 1.6mA
= -1.0mA
Full
Full
-
-
0.4
-
V
V
OUT
OUT
V
-0.6
V
-0.1
CC
CC
AUTOMATIC POWERDOWN (ICL3217 Only)
Receiver Input Thresholds to
Enable Transmitters
ICL3217 Powers Up (Figure 4)
Full
Full
25
-2.7
-
-
2.7
0.3
-
V
V
Receiver Input Thresholds to
Disable Transmitters
ICL3217 Powers Down (Figure 4)
-0.3
Receiver Threshold to Transmitters
-
-
100
µs
µs
Enabled Delay (t
)
WU
Receiver Positive or Negative
Threshold to Transmitters
Disabled Delay
25
30
-
RECEIVER INPUTS
Input Voltage Range
Input Threshold Low
Full
25
25
25
25
-25
0.6
0.8
-
-
25
-
V
V
V
V
V
V
V
V
V
= 3.3V
= 5.0V
= 3.3V
= 5.0V
1.2
1.5
1.5
1.8
CC
CC
CC
CC
-
Input Threshold High
2.4
2.4
-
4
ICL3207, ICL3217
Electrical Specifications Test Conditions: V = 3V to 5.5V, C - C = 0.1µF; Unless Otherwise Specified.
CC
1
4
Typicals are at T = 25°C (Continued)
A
TEMP
(°C)
PARAMETER
Input Hysteresis
TEST CONDITIONS
MIN
TYP
0.3
5
MAX
UNITS
V
25
25
-
-
Input Resistance
3
7
kΩ
TRANSMITTER OUTPUTS
Output Voltage Swing
Output Resistance
All Transmitter Outputs Loaded with 3kΩ to Ground
Full
Full
Full
Full
±5.0
±5.4
10M
±35
-
-
V
Ω
V
= V+ = V- = 0V, Transmitter Output = ±2V
300
-
CC
Output Short-Circuit Current
-
-
±60
±25
mA
µA
Output Leakage Current
(ICL3217 Only)
V
= ±12V, V
= 0V or 3V to 5.5V
CC
OUT
In Automatic Powerdown
TIMING CHARACTERISTICS
Maximum Data Rate
(One Transmitter Switching)
V
V
V
= 3.15V, C - C = 0.1µF, R = 3kΩ, C = 1000pF
Full
Full
Full
25
250
500
286
310
0.3
0.3
200
100
15
-
kbps
kbps
kbps
µs
CC
CC
CC
1
4
L
L
= 3.0V, C - C = 0.22µF, R = 3kΩ, C = 1000pF
250
-
-
1
4
L
L
≥ 4.5V, C - C = 0.1µF, R = 3kΩ, C = 1000pF
250
1
4
L
L
Receiver Propagation Delay
Receiver Input to Receiver
Output, C = 150pF
t
t
-
-
-
PHL
PLH
L
25
-
µs
Transmitter Skew
t
t
- t
PHL PLH
Full
Full
25
-
1000
500
30
30
ns
Receiver Skew
- t
PHL PLH
-
ns
Transition Region Slew Rate
V
= 3.3V, R = 3kΩ to 7kΩ,
C = 200pF to 2500pF
4
6
V/µs
V/µs
CC
L
L
Measured From +3V to -3V or -3V
to +3V
C = 200pF to 1000pF
L
25
15
ESD PERFORMANCE
RS-232 Pins (T
, R
OUT IN
)
Human Body Model
25
25
25
25
-
-
-
-
±15
±8
-
-
-
-
kV
kV
kV
kV
IEC1000-4-2 Contact Discharge
IEC1000-4-2 Air Gap Discharge
Human Body Model
±6
All Other Pins
±2
Trans mitters
Detailed Des cription
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.
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.
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.
Charge-Pump
Intersil’s new ICL32XX family utilizes regulated on-chip dual
charge pumps as voltage doublers, and voltage inverters to
Both devices guarantee a 250kbps data rate for full load
generate ±5.5V transmitter supplies from a V
supply as
conditions (3kΩ and 1000pF), V
≥ 3.0V, with one
CC
CC
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
transmitter operating at full speed. Under more typical
conditions of V ≥ 3.3V, R = 3kΩ, and C = 250pF, one
transmitter easily operates at 800kbps.
CC
L
L
Transmitter inputs float if left unconnected, and may cause
increases. Connect unused inputs to GND for the best
voltage doubler and inverter functions at V
= 3.3V. See
CC
I
CC
performance.
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.
5
ICL3207, ICL3217
Receivers
V
CC
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
TRANSITION
DETECTOR
TO
ICL3217
WAKE-UP
LOGIC
(V
= 0V). The receivers’ Schmitt trigger input stage uses
CC
hysteresis to increase noise immunity and decrease errors
due to slow input signal transitions.
V-
V
CC
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).
R
V
= HI-Z*
X
OUT
POWERED
DOWN
UART
T
X
* IN AUTOMATIC
POWERDOWN
V
CC
R
R
XIN
XOUT
FIGURE 3. DISABLED RECEIVERS PREVENT POWER DRAIN
-25V ≤ V
≤ +25V
RIN
GND ≤ V
≤ V
CC
5kΩ
ROUT
When replacing a ‘207 or ‘237 device in an existing 5V
GND
application, it is acceptable to terminate C to V
as shown
on the “Typical Operating Circuit”. Nevertheless, terminate
3
CC
FIGURE 1. INVERTING RECEIVER CONNECTIONS
C to GND if possible, as slightly better performance results
3
from this configuration.
V
CC
Automatic Powerdown (ICL3217 Only)
V
CC
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
CURRENT
FLOW
V
CC
V
= V
CC
OUT
Rx
Tx
POWERED
DOWN
UART
pump turns off (V+ collapses to V , V- collapses to GND),
CC
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 recover from automatic powerdown
mode is typically 100µs.
OLD
RS-232 CHIP
SHDN = GND
GND
FIGURE 2. POWER DRAIN THROUGH POWERED DOWN
PERIPHERAL
Low Power Operation
These 3V devices require a nominal supply current of
0.3mA, even at V
= 5.5V, during normal operation (not in
CC
TABLE 2. ICL3217 AUTOMATIC POWERDOWN OPERATION
RS-232 SIGNAL
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.
PRESENT AT
RECEIVER
INPUT?
MODE
OF
OUTPUTS OPERATION
TRANSMITTER RECEIVER
OUTPUTS
Low Power, Pin Compatible Replacement
YES
Active
Active
Normal
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.
Operation
NO
High-Z
High-Z
Powerdown
Due to Auto
Powerdown
Logic
6
ICL3207, ICL3217
in Table 3. Increasing the capacitor values (by a factor of 2)
reduces ripple on the transmitter outputs and slightly
reduces power consumption. C , C , and C can be
VALID RS-232 LEVEL - ICL3217 IS ACTIVE
2.7V
2
3
4
INDETERMINATE - POWERDOWN MAY OR
MAY NOT OCCUR
increased without increasing C ’s value, however, do not
1
increase C without also increasing C , C , and C to
1
2
3
4
0.3V
maintain the proper ratios (C to the other capacitors).
1
INVALID LEVEL - POWERDOWN OCCURS AFTER 30µs
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-.
-0.3V
INDETERMINATE - POWERDOWN MAY OR
MAY NOT OCCUR
-2.7V
VALID RS-232 LEVEL - ICL3217 IS ACTIVE
FIGURE 4. DEFINITION OF VALID RS-232 RECEIVER
LEVELS
TABLE 3. REQUIRED CAPACITOR VALUES
V
(V)
C (µF)
C , C , C (µF)
2 3 4
CC
1
3.15 to 3.6
3.0 to 3.6
4.5 to 5.5
3.0 to 5.5
0.1
0.22
0.1
RECEIVER
INPUTS
INVALID
REGION
}
0.22
0.1 to 1.0
0.22
0.1 to 1.0
0.22
TRANSMITTER
OUTPUTS
Power Supply Decoupling
PWR UP (t
)
AUTOPWDN
WU
In most circumstances a 0.1µF bypass capacitor is adequate.
V+
In applications that are particularly sensitive to power supply
V
CC
0
noise, decouple V
to ground with a capacitor of the same
CC
value as the charge-pump capacitor C . Connect the bypass
1
capacitor as close as possible to the IC.
V-
Trans mitter Outputs when Exiting
Powerdown
FIGURE 5. AUTOMATIC POWERDOWN TIMING DIAGRAM
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.
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.
5V/DIV
RX
IN
T1
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
2V/DIV
T2
V
= +3.3V
CC
C1 - C4 = 0.1µF
TIME (20µs/DIV.)
FIGURE 6. TRANSMITTER OUTPUTS WHEN EXITING
POWERDOWN (ICL3217ONLY)
7
ICL3207, ICL3217
High Data Rates
5V/DIV.
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.
T1
IN
T1
OUT
OUT
R1
V
CC
+
V
= +3.3V
0.1µF
CC
C1 - C4 = 0.1µF
2µs/DIV.
V
CC
V+
V-
+
C1+
C1-
C2+
C2-
FIGURE 9. LOOPBACK TEST AT 250kbps
+
C
1
2
C
3
4
ICL32X7
+
Interconnection with 3V and 5V Logic
C
+
C
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.
T
T
IN
OUT
1000pF
R
IN
R
OUT
TABLE 4. LOGIC FAMILY COMPATIBILITY WITH VARIOUS
SUPPLY VOLTAGES
5k
SYSTEM
V
CC
POWER-SUPPLY SUPPLY
VOLTAGE
(V)
VOLTAGE
(V)
COMPATIBILITY
FIGURE 7. TRANSMITTER LOOPBACK TEST CIRCUIT
3.3
3.3
Compatible with all CMOS
families.
5
5
Compatible with all TTL and
CMOS logic families.
5V/DIV.
T1
5
3.3
Compatible with ACT and HCT
CMOS, and with TTL.
IN
Incompatible with AC, HC, or
CD4000 CMOS.
T1
OUT
OUT
R1
V
= +3.3V
CC
C1 - C4 = 0.1µF
5µs/DIV.
FIGURE 8. LOOPBACK TEST AT 120kbps
8
ICL3207, ICL3217
Typical Performance Curves
V
= 3.3V, T = 25°C
CC
A
6.0
25
20
V
+
OUT
4.0
-SLEW
2.0
1 TRANSMITTER AT 250kbps
OTHER TRANSMITTERS AT 30kbps
0
-2.0
-4.0
-6.0
15
10
5
+SLEW
V
-
OUT
-SLEW
0
1000
2000
3000
4000
5000
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
FIGURE 10. TRANSMITTER OUTPUT VOLTAGE vs LOAD
CAPACITANCE
FIGURE 11. SLEW RATE vs LOAD CAPACITANCE
55
3.5
1 TRANSMITTER SWITCHING
50
NO LOAD
ALL OUTPUTS STATIC
3.0
2.5
2.0
1.5
1.0
0.5
0
45
250kbps
40
35
120kbps
30
25
20kbps
20
15
0
1000
2000
3000
4000
5000
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
LOAD CAPACITANCE (pF)
SUPPLY VOLTAGE (V)
FIGURE 12. SUPPLY CURRENT vs LOAD CAPACITANCE
WHEN TRANSMITTING DATA
FIGURE 13. SUPPLY CURRENT vs SUPPLY VOLTAGE
Die Characteris tics
SUBSTRATE POTENTIAL (POWERED UP):
GND
TRANSISTOR COUNT:
ICL3207: 469
ICL3217: 488
PROCESS:
Si Gate CMOS
9
ICL3207, ICL3217
Shrink Small Outline Plas tic Packages (SSOP)
M24.209 (JEDEC MO-150-AG ISSUE B)
N
24 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE
INDEX
AREA
0.25(0.010)
M
B M
H
INCHES
MILLIMETERS
E
GAUGE
PLANE
SYMBOL
MIN
MAX
MIN
-
MAX
2.00
-
NOTES
-B-
A
A1
A2
B
-
0.078
-
-
0.002
0.065
0.009
0.004
0.312
0.197
-
0.05
1.65
0.22
0.09
7.90
5.00
1
2
3
0.072
0.014
0.009
0.334
0.220
1.85
0.38
0.25
8.50
5.60
-
L
0.25
0.010
SEATING PLANE
A
9
-
-A-
C
D
E
D
3
4
-
-C-
α
µ
e
0.026 BSC
0.65 BSC
A2
e
A1
C
H
L
0.292
0.322
0.037
7.40
0.55
8.20
0.95
-
B
0.10(0.004)
0.022
6
7
-
0.25(0.010) M
C A M B S
N
α
24
24
o
o
o
o
0
8
0
8
NOTES:
Rev. 1 3/95
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. Inter-
lead 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” dimen-
sion at maximum material condition.
10. Controlling dimension: MILLIMETER. Converted inch dimensions
are not necessarily exact.
10
ICL3207, ICL3217
Small Outline Plas tic Packages (SOIC)
M24.3 (JEDEC MS-013-AD ISSUE C)
N
24 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE
INDEX
AREA
0.25(0.010)
M
B M
H
INCHES
MILLIMETERS
E
SYMBOL
MIN
MAX
MIN
2.35
0.10
0.33
0.23
MAX
2.65
0.30
0.51
0.32
15.60
7.60
NOTES
-B-
A
A1
B
C
D
E
e
0.0926
0.0040
0.013
0.1043
0.0118
0.020
-
-
1
2
3
L
9
SEATING PLANE
A
0.0091
0.5985
0.2914
0.0125
-
-A-
o
0.6141 15.20
3
h x 45
D
0.2992
7.40
4
-C-
0.05 BSC
1.27 BSC
-
α
µ
H
h
0.394
0.010
0.016
0.419
0.029
0.050
10.00
0.25
0.40
10.65
0.75
1.27
-
e
A1
C
5
B
0.10(0.004)
L
6
0.25(0.010) M
C A M B S
N
α
24
24
7
o
o
o
o
0
8
0
8
-
NOTES:
1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of
Publication Number 95.
Rev. 0 12/93
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. Inter-
lead 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.
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 cautioned to verify that data sheets are current before placing orders. Information furnished 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 otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
11
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