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參數資料
| 型號： | ADM3088AN |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | High-Speed (10Mbps), Fail-Safe, RS-485/RS-422 Transceivers with Slew-Rate-Limiting and 5kV ESD Protection |
| 中文描述： | LINE TRANSCEIVER, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數： | 11/14頁 |
| 文件大小： | 316K |
| 代理商： | ADM3088AN |
ADM3082/ADM3085/ADM3088
–11–
PRELIMINARY TECHNICAL DATA
PIN FUNCTION DESCRIPTION
Pin
Mnemonic
Description
1
RO
Receiver Output. When
RE
is low and A - B
$
(more positive than) –50mV, RO will be high.
When
RE
is low and A – B
#
(more negative than) –200mV, RO will be low.
2
RE
Receiver Output Enable. Take
RE
low to enable RO; RO is high impedance when
RE
is high.
Take
RE
high and DE low to enter low-power shutdown mode.
3
DE
Driver Output Enable. Take DE high to enable driver outputs. These outputs are high
impedance when DE is low. Take RE high and DE low to enter low-power shutdown mode.
4
DI
Driver Input. With DE high, a low on DI forces non-inverting output low and inverting output
high. Similarly, a high on DI forces non-inverting output high and inverting output low.
5
GND
Ground
6
A
Non-Inverting Receiver Input and Non-Inverting Driver Output
7
B
Inverting Receiver Input and Inverting Driver Output
8
V
CC
Positive Supply 4.75V =V
CC
=5.25V
TRANSMITTING
INPUTS
OUTPUTS
RE
DE
DI
B/Z
A/Y
X
1
1
0
1
X
1
0
1
0
0
0
X
High-Z
High-Z
1
0
X
Shutdown
RECEIVING
INPUTS
OUTPUT
RE
DE
A-B
RO
0
X
$
-0.05V
1
0
X
#
-0.2V
0
0
X
Open/shorted
1
1
1
X
High-Z
1
0
X
Shutdown
X = Don’t care
Shutdown mode, driver and receiver outputs high impedance
DEVICE TRUTH TABLES
REV. PrA 02/02
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