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參數(shù)資料
| 型號： | MAX1490BCPG |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RS485/RS422 DATA INTRFC 24DIP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 16 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 24-DIP（0.600"，15.24mm） |
| 供應商設(shè)備封裝： | 24-PDIP |
| 包裝： | 管件 |
| 其它名稱： | Q877874 |
MAX1480A/B/C,
MAX1490A/B
Complete, Isolated RS-485/RS-422
Data Interface
10
______________________________________________________________________________________
________________________________________________________________Pin Description
Internal Connections. Leave these pins unconnected.
3, 4
Logic-Side (nonisolated side) +5V Supply Voltages
1, 2, 8, 10
FUNCTION
PIN
D1, D2
VCC1–VCC4
NAME
Shutdown Input. Ground for normal operation. When high, the power oscillator is
disabled.
7
Frequency Select Input. If FS = VCC_ or is open, switch frequency is high; if FS
= GND, switch frequency is low. For optimal performance and minimal supply
current, connect FS to VCC_ or leave unconnected.
6
Logic-Side Ground. Connect to GND2 (pin 12).
5
SD
FS
GND1
Logic-Side (non-isolated side) +5V Supply Voltage
—
14
Receiver Output. If A > B by 200mV, RO will be low; if A < B by 200mV, RO will
be high. Open collector; must have pullup to VCC_ (Table 1 of Figure 1).
—
13
Logic-Side Ground. Connect to GND1 (pin 5).
12
VCC5
RO
GND2
Receiver Output. If A > B by 200mV, RO will be high; if A < B by 200mV, RO
will be low. Open collector; must have pullup to VCC (Table 2 of Figure 2).
11
—
Driver-Enable Input. The driver outputs, A and B, are enabled by bringing DE
high. The driver outputs are high impedance when DE
is low. If the driver out-
puts are enabled, the device functions as a line driver. While the driver outputs
are high impedance, the device functions as a line receiver. Drives internal
LED cathode through a resistor (Table 1 of Figure 1).
—
11
Driver Input. With DE
high (MAX1480A/B/C only), a low on DI forces output A
low and output B high. Similarly, a high on DI
forces output A high and output
B low. Drives internal LED cathode through a resistor (Table 1 of Figure 1 for
MAX1480A/B/C, Table 2 of Figure 2 for MAX1490A/B).
9
RO
DE
DI
Isolated Driver-Input Drive. With DE
high (MAX1480A/B/C only), a low on DI
forces output A low and output B high. Similarly, a high on DI
forces output A
high and output B low. Connect to ISO DI IN (on the MAX1480A/B/C only) for
normal operation. Open-collector output; connect a pullup resistor to ISO VCC_
(Table 1 of Figure 1 for MAX1480A/B/C; Table 2 of Figure 2 for MAX1490A/B).
15
19
Isolated Supply Voltage. Connect to ISO VCC1 (pin 26 for MAX1480A/B/C, or
pin 22 for MAX1490A/B).
14
18
Isolated Driver-Enable Drive. The driver outputs, A and B, are enabled by bring-
ing DE
high. The driver outputs are high impedance when DE is low. If the driv-
er outputs are enabled, the device functions as a line driver. While the driver
outputs are high impedance, the device functions as a line receiver. Open-
collector output; must have pullup to ISO VCC_ and be connected to ISO DE IN
for normal operation (Table 1 of Figure 1).
—
17
ISO DI DRV
ISO VCC2
ISO DE DRV
Isolated Common. Connect to ISO COM1 (pin 20).
—
16
Isolated Receiver Output LED. Internal LED anode in MAX1480A/B/C and LED
cathode in MAX1490A/B. Connect to ISO RO DRV through a resistor (Table 1 of
Figure 1 for MAX1480A/B/C; Table 2 of Figure 2 for MAX1490A/B).
13
15
Isolated Common. For MAX1480A/B/C, connect to ISO COM2 (pin 16)
(Figures 1 and 2).
16
20
ISO COM1
ISO COM2
ISO RO LED
MAX1480A/B/C
MAX1490A/B
PINS ON THE NON-ISOLATED SIDE
PINS ON THE ISOLATED RS-485/RS-422 SIDE
PINS ON THE NON-ISOLATED SIDE
PINS ON THE ISOLATED RS-485/RS-422 SIDE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1490BCPG+ | 功能描述:RS-422/RS-485 接口 IC Isolated RS-485/422 Data Interface RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| MAX1490BEPG | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| MAX1490BEPG+ | 功能描述:RS-422/RS-485 接口 IC Isolated RS-485/422 Data Interface RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| MAX1490EACPCS | 制造商:Maxim Integrated Products 功能描述: |
| MAX1490EACPG | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
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