参数资料
型号: LTC2844IG
厂商: Linear Technology
文件页数: 17/20页
文件大小: 0K
描述: IC TXRX 3.3V MULTIPROTCOL 28SSOP
标准包装: 47
类型: 收发器
驱动器/接收器数: 4/4
规程: 多协议
电源电压: 3.3V
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 管件
6
LTC2844
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VCC (Pin 1): Positive Supply for the Transceivers. Connect
to VCC Pin 8 on LTC2846 or to 5V supply. Connect a 1F
capacitor to ground.
VDD (Pin 2): Positive Supply Voltage for V.28. Connect to
VDD Pin 7 on LTC2846 or 8V supply. Connect a 1F
capacitor to ground.
D1 (Pin 3): TTL Level Driver 1 Input.
D2 (Pin 4): TTL Level Driver 2 Input.
D3 (Pin 5): TTL Level Driver 3 Input.
R1 (Pin 6): CMOS Level Receiver 1 Output. Receiver
outputs have a weak pull up to VIN when high impedance.
R2 (Pin 7): CMOS Level Receiver 2 Output.
R3 (Pin 8): CMOS Level Receiver 3 Output.
D4 (Pin 9): TTL Level Driver 4 Input.
R4 (Pin 10): CMOS Level Receiver 4 Output.
M0 (Pin 11): TTL Level Mode Select Input 0. Mode select
inputs pull up to VIN.
M1 (Pin 12): TTL Level Mode Select Input 1.
M2 (Pin 13): TTL Level Mode Select Input 2.
DCE/DTE (Pin 14): TTL Level Mode Select Input.
VIN (Pin 15): Positive Supply for the Receiver Outputs.
3V
≤ VIN ≤ 3.6V. Connect a 1F capacitor to ground.
D4/R4 A (Pin 16): Receiver 4 Inverting Input and Driver 4
Inverting Output.
R3 B (Pin 17): Receiver 3 Noninverting Input.
R3 A (Pin 18): Receiver 3 Inverting Input.
R2 B (Pin 19): Receiver 2 Noninverting Input.
R2 A (Pin 20): Receiver 2 Inverting Input.
D3/R1 B (Pin 21): Receiver 1 Noninverting Input and
Driver 3 Noninverting Output.
D3/R1 A (Pin 22): Receiver 1 Inverting Input and Driver 3
Inverting Output.
D2 B (Pin 23): Driver 2 Noninverting Output.
D2 A (Pin 24): Driver 2 Inverting Output.
D1 B (Pin 25): Driver 1 Noninverting Output.
D1 A (Pin 26): Driver 1 Inverting Output.
GND (Pin 27): Ground.
VEE (Pin 28): Negative Supply Voltage. Connect to VEE
Pin 31 on LTC2846 or to – 7V supply. Connect a 1
F
capacitor to ground.
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