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参数资料
| 型号： | MAX1485EUB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/16页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485/RS422 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS422，RS485 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 带卷 (TR) |
PIN
MAX1481/MAX1484/MAX1485/MAX1486
Software-Selectable, Half-/Full-Duplex, Slew-Rate-Limited,
12Mbps, RS-485/RS-422 Transceivers in MAX Package
_______________________________________________________________________________________
7
______________________________________________________________Pin Description
1
Receiver Output. When RE is low and if A - B
≥ 200mV, RO goes high; if A - B ≤
-200mV, RO goes low.
—
2
Half-/Full-Duplex Selector Input. Connect H/F to VCC for half-duplex mode, and
connect to GND for full-duplex mode.
2
—
Receiver Output Enable Input. Drive RE low to enable RO; RO is high impedance
when RE is high. For MAX1481 only, drive RE high and DE low to enter the low-
power shutdown mode.
3
Driver Output Enable Input. Drive DE high to enable driver outputs. These outputs
are high impedance when DE is low.
4
Driver Input. With DE high, a low on DI forces noninverting output low and invert-
ing output high. Similarly, a high on DI forces noninverting output high and invert-
ing output low.
5
Ground
6
Inverting Receiver Input
—
Receiver Input Resistors*
7
Inverting Driver Output
—
Inverting Driver Output and Inverting Receiver Input
8
Noninverting Driver Output
—
Noninverting Driver Output and Noninverting Receiver Input
9
Noninverting Receiver Input
—
Receiver Input Resistors*
10
Positive Supply; +4.75V
≤ VCC ≤ +5.25V
MAX1481/
MAX1484
1
RO
2
H/F
PIN
—
RE
3
DE
4
DI
5
GND
—
B
6
B
—
Z
7
Z
—
Y
8
Y
—
A
9
A
10
VCC
MAX1485/MAX1486
H/F = 0
FUNCTION
NAME
H/F = 1
*
(MAX1485/MAX1486 only) In half-duplex mode, the driver outputs serve as receiver inputs. The full-duplex receiver inputs (A and B)
will still have a 1/8-unit load, but are not connected to the receiver.
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