- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383363 > MAX3317CUP (MAXIM INTEGRATED PRODUCTS INC) 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors PDF資料下載
參數(shù)資料
| 型號： | MAX3317CUP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | LINE TRANSCEIVER, PDSO20 |
| 封裝： | TSSOP-20 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大小： | 190K |
| 代理商： | MAX3317CUP |
M
±15kV ESD-Protected, 2.5V, 1μA, 460kbps,
RS-232 Compatible Transceivers
_______________________________________________________________________________________
7
Pin Description (continued)
Detailed Description
Dual Charge-Pump Voltage Converter
The MAX3316E–MAX3319Es’ internal power supply
consists of a regulated dual charge pump that provides
output voltages of +4.4V (doubling charge pump) and
-4.3V (inverting charge pump), over the +2.25V to
+3.0V range. The charge pump operates in discontinu-
ous mode: if the output voltages are less than 4.4V, the
charge pump is enabled; if the output voltages exceed
4.4V, the charge pump is disabled. Each charge pump
requires a flying capacitor (C1, C2) and a reservoir
capacitor (C3, C4) to generate the V+ and V- supplies.
The READY output (MAX3318E/MAX3319E) is low
when the charge pumps are disabled in shutdown
mode. The READY signal asserts high when V- goes
below -2.75V.
RS-232 Compatible Transmitters
The MAX3316E–MAX3319Es’ transmitters are inverting
level translators that convert CMOS-logic levels to
RS-232 compatible voltage levels. They guarantee a
460kbps data rate with worst-case loads of 3k
in parallel
with 1000pF, providing compatibility with PC-to-PC
communication software (such as LapLink).
The MAX3317E’s transmitters are turned off (high
impedance) when
SHDN
is asserted low, putting the
device in shutdown mode. The MAX3318E/MAX3319Es’
transmitters are turned off (high impedance) when
FORCEOFF
is asserted low, or when the AutoShutdown
Plus circuitry senses that all receiver and transmitter
inputs are inactive for more than 30 seconds.
The transmitter outputs can be driven to ±12V when
power is off. The transmitter inputs do not have internal
pull-up resistors. Connect unused inputs to GND or V
CC
.
RS-232 Receivers
The MAX3316E–MAX3319Es’ receivers convert ±3.7V
to ±13.2V RS-232 signal levels into CMOS-logic output
levels. The receivers are rated to receive signals up to
±25V. The MAX3316E/MAX3318E/MAX3319Es’
receivers feature inverting outputs that always remain
active (Table 1). The MAX3317E’s receivers have
inverting, three-state outputs. In shutdown, the
receivers can be active or inactive (Table 2).
The MAX3318E/MAX3319E feature an
INVALID
output
that is asserted low when no valid RS-232 voltage levels
have been detected on all receiver inputs. Because
INVALID
indicates the receiver’s input condition, it
is independent of the states of FORCEON and
FORCEOFF
.
MAX3317E Shutdown Mode
Supply current falls to less than 1μA in shutdown mode
(
SHDN
= low). When shut down, the device’s charge
pumps are turned off, V+ is pulled down to V
CC
, V- is
pulled to ground, and the transmitter outputs are dis-
abled (high impedance). The time required to exit shut-
LapLink is a trademark of Traveling Software.
PIN
MAX3316E
SSOP
MAX3317E MAX3318E MAX3319E
NAME
FUNCTION
Shutdown Control, Active Low
Ready to Transmit Output, Active High. READY is
enabled high when V- goes below -3.5V and the
device is ready to transmit.
Valid Signal Detector Output, Active Low. A logic
high indicates that a valid RS-232 level is present
on a receiver input.
Force-On Input, Active High. Drive high to override
AutoShutdown Plus, keeping transmitters and
receivers on (
FORCEOFF
must be high) (Table 1).
Force-Off Input, Active Low. Drive low to shut
down transmitters, receivers, and charge pump.
This overrides AutoShutdown Plus and FORCEON
(Table 1).
FORCEOFF
FORCEON
INVALID
READY
SHDN
—
1
10
12
16
20
14
11
1
—
20
—
—
—
—
—
—
—
—
—
TSSOP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3317EAP | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3317EUP | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3318 | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3318CAP | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3318CUP | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3317CUP+ | 功能描述:RS-232接口集成電路 460kbps 1uA 2.5V Transceiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3317CUP+T | 功能描述:RS-232接口集成電路 460kbps 1uA 2.5V Transceiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3317CUP-T | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3317EAP | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3317EAP+T | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。