FIGURE 13. RS-485 RECEIVER E
參數(shù)資料
型號: SP337EUEY-0A-EB
廠商: Exar Corporation
文件頁數(shù): 4/18頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR SP337EUEY
標準包裝: 1
主要目的: 接口,收發(fā)器,RS-232,RS-422,RS-485
嵌入式:
已用 IC / 零件: SP337EUEY
主要屬性: *
次要屬性: *
已供物品:
其它名稱: 1016-1376
FIGURE 13. RS-485 RECEIVER ENABLE AND DISABLE TIMES TEST CIRCUIT
1.5V
-1.5V
S3
A
GENERATOR
50Ω
C
L= 15pF
R
1kΩ
S1
S2
Vcc
B
RE
OUT
FIGURE 14. RS-485 RECEIVER ENABLE AND DISABLE TIMES TIMING DIAGRAM 1
3V
1.5V
0V
RE
OUT
S1 is open, S2 is closed, S3 = 1.5V
VOH
tZH
VOH /2
FIGURE 15. RS-485 RECEIVER ENABLE AND DISABLE TIMES TIMING DIAGRAM 2
3V
0V
1.5V
VCC
RE
OUT
S1 is closed, S2 is open, S3 = -1.5V
tZL
VOL= VCC/2
VOL
SP337E
12
3.3V TO 5V RS-232/RS-485/RS-422 MULTIPROTOCOL TRANSCEIVER
REV. 1.0.2
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