参数资料
型号: LTC1321IN#PBF
厂商: Linear Technology
文件页数: 18/20页
文件大小: 0K
描述: IC TXRX RS232/RS485/EIA562 24DIP
标准包装: 15
类型: 收发器
驱动器/接收器数: 4/4
规程: RS562
电源电压: 4.75 V ~ 5.25 V
安装类型: 通孔
封装/外壳: 24-DIP(0.300",7.62mm)
供应商设备封装: 24-PDIP
包装: 管件
7
LTC1321/LTC1322/LTC1335
VDD(Pin 1): Positive Supply Input for EIA/TIA-562 Drivers.
B1: (Pin 2): Receiver Input.
A1 (Pin 3): Receiver Input.
Z1 (Pin 4): Driver Output.
Y1 (Pin 5): Driver Output.
SEL1 (Pin 6): Interface Mode Select Input.
SEL2 (Pin 7): Interface Mode Select Input.
Y2 (Pin 8): Driver Output.
Z2 (Pin 9): Driver Output.
A2 (Pin 10): Receiver Input.
B2 (Pin 11): Receiver Input.
GND (Pin 12): Ground.
VEE (Pin 13): Negative Supply.
NC (Pin 14): No Connection.
RA2 (Pin 15): Receiver Output.
DE2 (Pin 16): Driver Enable with Internal Pull-Up in RS485
Mode.
DY2 (Pin 17): Driver Input.
ON/OFF (Pin 18): A HIGH logic input enables the trans-
ceivers. A LOW puts the device into shutdown mode and
reduces ICC to 15A. This pin has an internal pull-up.
LB (Pin 19): Loopback Control Input. A LOW logic level
enables loopback connections. This pin has an internal
pull-up.
DY1 (Pin 20): Driver Input.
DE1 (Pin 21): Driver Enable with Internal Pull-Up in RS485
Mode.
RA1 (Pin 22): Receiver Output.
NC (Pin 23): No Connection.
VCC (Pin 24): Positive Supply; 4.75V ≤ VCC ≤ 5.25V.
OE/VDD (Pin 1): For LTC1335, pin 1 is the receiver
output enable with internal pull-down. For LTC1322, pin
1 is the positive supply input for EIA/TIA-562 drivers.
B1: (Pin 2): Receiver Input.
A1 (Pin 3): Receiver Input.
Z1 (Pin 4): Driver Output.
Y1 (Pin 5): Driver Output.
SEL1 (Pin 6): Interface Mode Select Input.
SEL2 (Pin 7): Interface Mode Select Input.
Y2 (Pin 8): Driver Output.
Z2 (Pin 9): Driver Output.
A2 (Pin 10): Receiver Input.
B2 (Pin 11): Receiver Input.
GND (Pin 12): Ground.
VEE (Pin 13): Negative Supply.
RB2 (Pin 14): Receiver Output.
RA2 (Pin 15): Receiver Output.
DZ2/DE2 (Pin 16): EIA/TIA-562 Driver Input in EIA562
Mode. RS485 Driver Enable with Internal Pull-Up in
RS485 Mode.
DY2 (Pin 17): Driver Input.
ON/OFF (Pin 18): A HIGH logic input enables the
transceivers. A LOW puts the device into shutdown
mode and reduces ICC to 15A. This pin has an internal
pull-up.
LB (Pin 19): Loopback Control Input. A LOW logic level
enables loopback connections. This pin has an internal
pull-up.
DY1 (Pin 20): Driver Input.
DZ1/DE1 (Pin 21): EIA/TIA-562 Driver Input in EIA562
Mode. RS485 Driver Enable with Internal Pull-up in
RS485 Mode.
RA1 (Pin 22): Receiver Output.
RB1 (Pin 23): Receiver Output.
VCC (Pin 24): Positive Supply; 4.75V ≤ VCC ≤ 5.25V.
PI FU CTIO S
U
UU
LTC1321
LTC1322/LTC1335
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