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參數(shù)資料
| 型號： | MAX3248ECAI |
| 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： | TRIPLE LINE TRANSCEIVER, PDSO28 |
| 封裝： | 5.30 MM, 0.65 MM PITCH, SSOP-28 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大小： | 235K |
| 代理商： | MAX3248ECAI |
M
+3.0V to +5.5V, 10nA, 250kbps RS-232 Transceivers
with ±15kV ESD-Protected I/O and Logic Pins
_______________________________________________________________________________________
5
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, 250kbps data rate, 0.1μF capacitors, all transmitters loaded with 3k
, T
A
= +25°C, unless otherwise noted.)
______________________________________________________________Pin Description
Output of the Valid Signal Detector. A logic 1 indicates if a valid RS-232 level is present on
receiver inputs.
INVALID
15
Noninverting Complementary Receiver Output. Always active.
TTL/CMOS Transmitter Inputs (T5IN–T1IN). This pin has an active positive feedback resis-
tor. Once driven to a valid logic level, the pin retains that level if left unconnected until
power is cycled.
TTL/CMOS Receiver Outputs (R3OUT–R1OUT)
Negative Terminal of Voltage-Doubler Charge-Pump Capacitor
+3.0V to +5.5V Supply Voltage
+5.5V Generated by the Charge Pump
Positive Terminal of Voltage-Doubler Charge-Pump Capacitor
R1OUTB
16
T_IN
17, 19, 22, 23, 24
R_OUT
C1-
V
CC
V+
C1+
18, 20, 21
25
26
27
28
RS-232 Transmitter Outputs (T1OUT–T5OUT)
RS-232 Receiver Inputs (R1IN–R3IN)
Force-On Input. Drive high to override AutoShutdown Plus, keeping transmitters and
receivers on (
FORCEOFF
must be high) (Table 1). This pin has an active positive feedback
resistor. Once driven to a valid logic level, the pin retains that level if left unconnected until
power is cycled.
T_OUT
R_IN
5, 6, 7, 10, 12
8, 9, 11
FORCEON
13
Force-Off Input. Drive low to shut down transmitters, receivers (except R1OUTB), and on-
board supply. This overrides AutoShutdown Plus and FORCEON (Table 1). This pin has an
active positive feedback resistor. Once driven to a valid logic level, the pin retains that
level if left unconnected until power is cycled.
FORCEOFF
14
-5.5V Generated by the Charge Pump
V-
4
Negative Terminal of Inverting Charge-Pump Capacitor
C2-
3
PIN
1
Ground
GND
2
Positive Terminal of Inverting Charge-Pump Capacitor
C2+
FUNCTION
NAME
-6
-2
-3
-4
-5
2
1
0
4
3
6
5
-1
2.0
3.0
SUPPLY VOLTAGE (V)
3.5
2.5
4.0
4.5
5.0
TRANSMITTER OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
M
T
V
OUT-
V
OUT
+
1 TRANSMITTER 250kbps
4 TRANSMITTERS 15.6kbps
ALL TRANSMITTERS LOADED
WITH 3k
+1000pF
0
20
10
30
40
50
2.0
3.0
SUPPLY VOLTAGE (V)
3.5
2.5
4.0
4.5
5.0
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
M
S
1 TRANSMITTER 250kbps
4 TRANSMITTERS 15.6kbps
ALL TRANSMITTERS LOADED
WITH 3k
+1000pF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3238E | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3238ECAI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3248E | ±15kV ESD-Protected, 3.0V to 5.5V, Low-Power, Up to 250kbps, True RS-232 Transceivers(±15kV ESD保護(hù)，3.0V至5.5V,低功耗,250kbps, RS-232收發(fā)器（5發(fā)3收）) |
| MAX3248EEAI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3238EEAI | 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 |
|---|---|
| MAX3248ECAI+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX3248ECAI+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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3248ECAI-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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3248EEAI | 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3248EEAI+ | 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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