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PDF HIN202 Data sheet ( Hoja de datos )
| Número de pieza | HIN202 | |
| Descripción | (HIN200 - HIN213) +5V Powered RS-232 Transmitters/Receivers | |
| Fabricantes | Harris Corporation | |
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HIN200 thru HIN213S E M I C O N D U C T O R
August 1997
+5V Powered RS-232 Transmitters/Receivers
with 0.1Microfarad External Capacitors
Features
• Meets All RS-232E and V.28 Specifications
• HIN203 and HIN205 Require No External Capacitors
• Requires Only 0.1µF or Greater External Capacitors
• 120kbit/s Data Rate
• Two Receivers Active in Shutdown Mode (HIN213)
• Requires Only Single +5V Power Supply
- (+5V and +12V - HIN201 and HIN209)
• Onboard Voltage Doubler/Inverter
• Low Power Consumption (Typ) . . . . . . . . . . . . . . . 5mA
• Low Power Shutdown Function (Typ) . . . . . . . . . . .1µA
• Three-State TTL/CMOS Receiver Outputs
• Multiple Drivers
- ±10V Output Swing for +5V lnput
- 300Ω Power-Off Source Impedance
- Output Current Limiting
- TTL/CMOS Compatible
- 30V/µs Maximum Slew Rate
• Multiple Receivers
- ±30V Input Voltage Range
- 3kΩ to 7kΩ Input Impedance
- 0.5V Hysteresis to Improve Noise Rejection
Description
The HIN200-HIN213 family of RS-232 transmitters/receivers
interface circuits meet all ElA RS-232E and V.28 specifications,
and are particularly suited for those applications where ±12V is
not available. They require a single +5V power supply (except
HIN201 and HIN209) and feature onboard charge pump volt-
age converters which generate +10V and -10V supplies from
the 5V supply. The HIN203 and HIN205 require no external
capacitors and are ideally suited for applications where circuit
board space is critical. The family of devices offers a wide vari-
ety of RS-232 transmitter/receiver combinations to accommo-
date various applications (see Selection Table).
The HIN200, HIN206, HIN211 and HIN213 feature a low
power shutdown mode to conserve energy in battery
powered applications. In addition, the HIN213 provides two
active receivers in shutdown mode allowing for easy
“wakeup” capability.
The drivers feature true TTL/CMOS input compatibility, slew
rate-limited output, and 300Ω power-off source impedance.
The receivers can handle up to ±30V input, and have a 3kΩ
to 7kΩ input impedance. The receivers also feature hystere-
sis to greatly improve noise rejection.
Applications
• Any System Requiring RS-232 Communications Port
- Computer - Portable, Mainframe, Laptop
- Peripheral - Printers and Terminals
- Instrumentation
- Modems
Selection Table
PART
NUMBER
HIN200
HIN201
HIN202
HIN203
HIN204
HIN205
HIN206
HIN207
HIN208
HIN209
HIN211
HIN213
POWER SUPPLY
VOLTAGE
+5V
+5V and +9V to 13.2V
+5V
+5V
+5V
+5V
+5V
+5V
5V
+5V and +9V to 13.2V
+5V
+5V
NUMBER OF
RS-232
DRIVERS
5
2
2
2
4
5
4
5
4
3
4
4
NUMBER OF
RS-232
RECEIVERS
0
2
2
2
0
5
3
3
4
5
5
5
NUMBER OF
0.1µF
EXTERNAL
CAPACITORS
4 Capacitors
2 Capacitors
4 Capacitors
None
4 Capacitors
None
4 Capacitors
4 Capacitors
4 Capacitors
2 Capacitors
4 Capacitors
4 Capacitors
LOW POWER
SHUTDOWN/TTL
THREE-STATE
Yes/No
No/No
No/No
No/No
No/No
Yes/Yes
Yes/Yes
No/No
No/No
No/Yes
Yes/Yes
Yes/Yes
NUMBER OF
RECEIVERS
ACTIVE IN
SHUTDOWN
0
0
0
0
0
0
0
0
0
0
0
2
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1997
8-3
File Number 3980.6
1 page  
HIN200 thru HIN213
Pinouts (Continued)
HIN204 (SOIC)
TOP VIEW
T1OUT 1
T2OUT 2
T2IN 3
T1IN 4
GND 5
VCC 6
C1+ 7
V+ 8
16 T3OUT
15 T4OUT
14 T4IN
13 T3IN
12 V-
11 C2-
10 C2+
9 C1-
HIN205 (PDIP)
TOP VIEW
T4OUT 1
T3OUT 2
T1OUT 3
T2OUT 4
R2IN 5
R2OUT 6
T2IN 7
T1IN 8
R1OUT 9
R1IN 10
GND 11
VCC 12
24 R3IN
23 R3OUT
22 T5IN
21 SD
20 EN
19 T5OUT
18 R4IN
17 R4OUT
16 T4IN
15 T3IN
14 R5OUT
13 R5IN
+5V
0.1µF
0.1µF
T1IN
6
7
+ C1+
VCC
9 +5V TO 10V
C1- VOLTAGE DOUBLER
10
+ C2+
+10V TO -10V
11
C2-
VOLTAGE INVERTER
+5V T1
4 400kΩ
V+ 8
V- 12
1
0.1µF
+
0.1µF
+
T1OUT
T2IN
+5V T2
3 400kΩ
2 T2OUT
T3IN
+5V T3
13 400kΩ
16 T3OUT
T4IN
+5V
14 400kΩ
T4
15 T4OUT
GND
5
T1IN
T2IN
T3IN
T4IN
T5IN
R1OUT
R2OUT
R3OUT
R4OUT
+5V
12
+5V
8 400kΩ
VCC
T1
+5V T2
7 400kΩ
+5V
15 400kΩ
+5V
16 400kΩ
T3
T4
+5V
22 400kΩ
9
T5
R1
6
R2
23
R3
17
R4
0.1µF
+
3
T1OUT
4
2
1
19
10
5kΩ
5
5kΩ
24
5kΩ
18
5kΩ
T2OUT
T3OUT
T4OUT
T5OUT
R1IN
R2IN
R3IN
R4IN
R5OUT
EN
14
20
13
R5
5kΩ
21
GND
11
R5IN
SD
8-7
5 Page 
HIN200 thru HIN213
Detailed Description
The HIN200 thru HIN213 family of RS-232 transmitters/receiv-
ers are powered by a single +5V power supply (except HIN201
and HIN209), feature low power consumption, and meet all ElA
RS232C and V.28 specifications. The circuit is divided into
three sections: the charge pump, transmitter, and receiver.
Charge Pump
An equivalent circuit of the charge pump is illustrated in
Figure 1. The charge pump contains two sections: the
voltage doubler and the voltage inverter. Each section is
driven by a two phase, internally generated clock to gener-
ate +10V and -10V. The nominal clock frequency is
125kHz. During phase one of the clock, capacitor C1 is
charged to VCC . During phase two, the voltage on C1 is
added to VCC, producing a signal across C3 equal to twice
VCC. During phase two, C2 is also charged to 2VCC, and
then during phase one, it is inverted with respect to ground
to produce a signal across C4 equal to -2VCC. The charge
pump accepts input voltages up to 5.5V. The output
impedance of the voltage doubler section (V+) is approxi-
mately 200Ω, and the output impedance of the voltage
inverter section (V-) is approximately 450Ω. A typical
application uses 0.1µF capacitors for C1-C4, however, the
value is not critical. Increasing the values of C1 and C2 will
lower the output impedance of the voltage doubler and
inverter, increasing the values of the reservoir capacitors,
C3 and C4, lowers the ripple on the V+ and V- supplies.
During shutdown mode (HIN200, HIN206 and HIN211,
SD = VCC, HIN213, SD = 0V) the charge pump is turned off,
V+ is pulled down to VCC, V- is pulled up to GND, and the
supply current is reduced to less than 10µA. The transmitter
outputs are disabled and the receiver outputs (except for
HIN213, R4 and R5) are placed in the high impedance state.
0V to VCC. The output will be low whenever the input is
greater than 2.4V and high whenever the input is floating or
driven between +0.8V and -30V. The receivers feature 0.5V
hysteresis (except during shutdown) to improve noise rejec-
tion. The receiver Enable line (EN, on HIN206, HIN209, and
HIN211, EN on HIN213) when unasserted, disables the
receiver outputs, placing them in the high impedance mode.
The receiver outputs are also placed in the high impedance
state when in shutdown mode (except HIN213 R4 and R5).
V+
VCC
400kΩ
TXIN
GND < TXIN < VCC
V-
300Ω
TOUT
V- < VTOUT < V+
FIGURE 2. TRANSMITTER
VCC
RXIN
-30V < RXIN < +30V
GND
5kΩ
ROUT
GND < VROUT < VCC
FIGURE 3. RECEIVER
Transmitters
The transmitters are TTL/CMOS compatible inverters which
translate the inputs to RS-232 outputs. The input logic thresh-
old is about 26% of VCC, or 1.3V for VCC = 5V. A logic 1 at the
input results in a voltage of between -5V and V- at the output,
and a logic 0 results in a voltage between +5V and (V+ -0.6V).
Each transmitter input has an internal 400kΩ pullup resistor
so any unused input can be left unconnected and its output
remains in its low state. The output voltage swing meets the
RS-232C specifications of ±5V minimum with the worst case
conditions of: all transmitters driving 3kΩ minimum load
impedance, VCC = 4.5V, and maximum allowable operating
temperature. The transmitters have an internally limited output
slew rate which is less than 30V/µs. The outputs are short cir-
cuit protected and can be shorted to ground indefinitely. The
powered down output impedance is a minimum of 300Ω with
±2V applied to the outputs and VCC = 0V.
Receivers
The receiver inputs accept up to ±30V while presenting the
required 3kΩ to 7kΩ input impedance even if the power is off
(VCC = 0V). The receivers have a typical input threshold of
1.3V which is within the ±3V limits, known as the transition
region, of the RS-232 specifications. The receiver output is
TIN
OR
RIN
TOUT
OR
ROUT
tPHL
tPLH
VOL
VOL
AVERAGE PROPAGATION DELAY =
tPHL + tPLH
2
FIGURE 4. PROPAGATION DELAY DEFINITION
HIN213 Operation in Shutdown
The HIN213 features two receivers, R4 and R5, which
remain active in shutdown mode. During normal operation
the receivers propagation delay is typically 0.5µs. This prop-
agation delay may increase slightly during shutdown. When
entering shut down mode, receivers R4 and R5 are not valid
for 80µs after SD = VIL. When exiting shutdown mode, all
receiver outputs will be invalid until the charge pump circuitry
reaches normal operating voltage. This is typically less than
2ms when using 0.1µF capacitors.
8-13
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet HIN202.PDF ] | |
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