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参数资料
| 型号： | HIN232IPZ |
| 厂商： | Integrated Silicon Solution, Inc. |
| 元件分类： | RS-232 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | 5V的高速RS - 232收发器与0.1uF电容 |
| 文件页数： | 14/17页 |
| 文件大小： | 247K |
| 代理商： | HIN232IPZ |
3-14
Transmitters
The transmitters are TTL/CMOS compatible inverters which
translate the inputs to RS-232 outputs. The input logic
threshold is about 26% of V
CC
, or 1.3V for V
CC
= 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 400k
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 3k
minimum load impedance, V
CC
= 4.5V, and maximum
allowable operating temperature. The transmitters have an
internally limited output slew rate which is less than 30V/
μ
s.
The outputs are short circuit protected and can be shorted to
ground indefinitely. The powered down output impedance is
a minimum of 300
with
±
2V applied to the outputs and
V
CC
= 0V.
Receivers
The receiver inputs accept up to
±
30V while presenting the
required 3k
to 7k
input impedance even if the power is off
(V
CC
= 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
0V to V
CC
. 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
rejection. The receiver Enable line EN, (EN on HIN213A)
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 HIN213A R4 and R5).
HIN241A Operation in Shutdown
The HIN213A features two receivers, R4 and R5, which
remain active in shutdown mode. During normal operation
the receivers propagation delay is typically 0.5
μ
s. This
propagation delay may increase slightly during shutdown.
When entering shut down mode, receivers R4 and R5 are
not valid for 80
μ
s after SD = V
IL
. 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 0.1
μ
F capacitors.
Application Information
The HIN2XXA may be used for all RS-232 data terminal and
communication links. It is particularly useful in applications
where
±
12V power supplies are not available for
conventional RS-232 interface circuits. The applications
presented represent typical interface configurations.
A simple duplex RS-232 port with CTS/RTS handshaking is
illustrated in Figure 7. Fixed output signals such as DTR
(data terminal ready) and DSRS (data signaling rate select)
is generated by driving them through a 5k
resistor
connected to V+.
In applications requiring four RS-232 inputs and outputs
(Figure 8), note that each circuit requires two charge pump
capacitors (C1 and C2) but can share common reservoir
capacitors (C3 and C4). The benefit of sharing common
reservoir capacitors is the elimination of two capacitors and
the reduction of the charge pump source impedance which
effectively increases the output swing of the transmitters.
T
OUT
V- < V
TOUT
< V+
300
400k
T
XIN
GND < T
XIN
< V
CC
V-
V+
V
CC
FIGURE 4. TRANSMITTER
R
OUT
GND < V
ROUT
< V
CC
5k
R
XIN
-30V < R
XIN
< +30V
GND
V
CC
FIGURE 5. RECEIVER
T
IN
OR
R
IN
V
OL
V
OL
t
PLH
t
PHL
AVERAGE PROPAGATION DELAY =
t
PHL +
t
PLH
2
T
OUT
OR
R
OUT
FIGURE 6. PROPAGATION DELAY DEFINITION
HIN202A thru HIN241A
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PDF描述 |
|---|---|
| HIN238ECA-T | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| HIN213EIA | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| HIN213EIB | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| HIN213ECA-T | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| HIN202EIP | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HIN233 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:+5V Powered RS-232 Transmitters/Receivers |
| HIN233 WAF | 制造商:Harris Corporation 功能描述: |
| HIN233ACP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HIN233CP | 制造商:Rochester Electronics LLC 功能描述:20PDIP,0+70,+5V,INTERNAL CAPS,RS-232 - Bulk |
| HIN233ECB | 制造商:Rochester Electronics LLC 功能描述:20SOIC,15KV ESD,0+70,5V,2T/2R,RS-232 - Bulk |
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