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參數(shù)資料
| 型號(hào)： | SP207EHCT |
| 英文描述： | High Speed 5V High Performance RS232 Transceivers |
| 中文描述： | 高速5V的高性能RS232收發(fā)器 |
| 文件頁(yè)數(shù)： | 8/16頁(yè) |
| 文件大?。?/td> | 204K |
| 代理商： | SP207EHCT |
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SP207EHDS/08
SP207EH Series High Performance RS232 Transceivers
8
Copyright 2000 Sipex Corporation
Figure 6. Wake–Up Timing
+5V
0V
ENABLE
SD
DISABLE
R
OUT
DATA VALID
+5V
0V
R
OUT
+5V
0V
R
OUT
t
WAIT
t
0 (POWERUP)
ENABLE
SD
DISABLE
POWER UP WITH SD ACTIVE (Charge pump in shutdown mode)
POWER UP WITH SD DISABLED (Charge pump in active mode)
t
0 (POWERUP)
t
ENABLE
DATA VALID
SD
DATA VALID
DATA VALID
DATA VALID
EXERCISING WAKE–UP FEATURE
t
0 (POWERUP)
t
ENABLE
t
ENABLE
t
ENABLE
t
WAIT
DISABLE
DISABLE
ENABLE
t
WAIT
= 2ms typical, 3ms maximum
t
ENABLE
= 1ms typical, 2ms maximum
V
CC
= +5V ±10%; T
A
= 25°C
SP213EH Only
SD
1
1
0
0
Power
Up/Down
Up
Up
Down
Down
Receiver
Outputs
Enable
Tri–state
Enable
Tri–state
SD
0
0
1
1
EN
0
1
0
1
EN
1
0
1
0
Table 2. Wake–Up Truth Table
ENABLE
The
SP211EH
and
SP213EH
all feature an
enable input, which allows the receiver outputs
to be either tri–stated or enabled. This can be
especially useful when the receiver is tied di-
rectly to a microprocessor data bus. For the
SP211EH
, enable is active low; that is, 0V
applied to the ENABLE pin will enable the
receiver outputs. For the
SP213EH
, enable is
active high; that is, +5V applied to the ENABLE
pin will enable the receiver outputs.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP207EHEA | High Speed 5V High Performance RS232 Transceivers |
| SP207EHEP | High Speed 5V High Performance RS232 Transceivers |
| SP207EHET | High Speed 5V High Performance RS232 Transceivers |
| SP207B | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP207BCA | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP207EHCT-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP207EHEA | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Speed +5V High Performance RS232 Transceivers |
| SP207EHEA-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP207EHEA-L/TR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP207EHEP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Speed +5V High Performance RS232 Transceivers |
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