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參數(shù)資料
| 型號(hào)： | LTC1487CS8 |
| 廠商： | Linear Technology |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485 LOW EMI LOPWR8SOIC |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 管件 |
5
LTC1487
sn1487 1487fs
DI (Pin 4): Driver Input. If the driver outputs are enabled
(DE HIGH) then a LOW on DI forces the outputs A LOW and
B HIGH. A HIGH on DI with the driver outputs enabled will
force A HIGH and B LOW.
GND (Pin 5): Ground.
A (Pin 6): Driver Output/Receiver Input.
B (Pin 7): Driver Output/Receiver Input.
VCC (Pin 8): Positive Supply. 4.75V < VCC < 5.25V.
PIN FUNCTIONS
UU
U
RO (Pin 1): Receiver Output. If the receiver output is
enabled (RE LOW), and A > B by 200mV, RO will be HIGH.
If A < B by 200mV, then RO will be LOW.
RE (Pin 2): Receiver Output Enable. A LOW enables the
receiver output, RO. A HIGH input forces the receiver
output into a high impedance state.
DE (Pin 3): Driver Outputs Enable. A HIGH on DE enables
the driver output. A and B and the chip will function as a line
driver. A LOW input will force the driver outputs into a high
impedance state and the chip will function as a line
receiver. If RE is HIGH and DE is LOW, the part will enter
a low power (1
A) shutdown state.
Figure 3. Driver/Receiver Timing Test Circuit
Figure 4. Driver Timing Test Load
OUTPUT
UNDER TEST
CL
S1
S2
VCC
500
LTC1487 F04
3V
DE
A
B
DI
RDIFF
CL1
CL2
RO
15pF
A
B
RE
LTC1487 F03
Figure 1. Driver DC Test Load
Figure 2. Receiver Timing Test Load
VOD
A
B
R
VOC
LTC1487 F01
RECEIVER
OUTPUT
CRL
1k
S1
S2
TEST POINT
VCC
1k
LTC1487 F02
TEST CIRCUITS
LTC1487 Transmitting
INPUTS
OUTPUTS
RE
DE
DI
B
A
X
110
1
X
101
0
00
X
Z
1
0
X
Z*
*Shutdown mode
LTC1487 Receiving
INPUTS
OUTPUTS
RE
DE
A – B
RO
00
≥0.2V
1
00
≤–0.2V
0
Inputs Open
1
10
X
Z*
*Shutdown mode
FU CTIO TABLES
UU
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1487CS8#PBF | 功能描述:IC TXRX RS485 LOW EMI LOPWR8SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:RS-232 & USB Transceiver 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
| LTC1487CS8#TR | 功能描述:IC TXRX RS485 LO EMI SHTDN 8SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件 |
| LTC1487CS8#TRPBF | 功能描述:IC TXRX RS485 LOW EMI LOPWR8SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件 |
| LTC1487CS8PBF | 制造商:Linear Technology 功能描述:RS485 differential transceiverLTC1487CS8 |
| LTC150-1 | 制造商:Thomas & Betts 功能描述:APC CONDUIT |
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