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參數(shù)資料
| 型號： | MAX218 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 16-Bit Buffers/Drivers With 3-State Outputs 48-SSOP -40 to 85 |
| 中文描述： | 1.8V至4.25V供電、雙路、真RS-232收發(fā)器 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 92K |
| 代理商： | MAX218 |
M
1.8V to 4.25V-Powered,
True RS -232 Dual Transc eiver
_______________________________________________________________________________________
3
TIMING CHARACTERISTICS
(Circuit of Figure 1, V
CC
= 1.8V to 4.25V, C1 = 0.47μF, C2 = C3 = C4 = 1μF, L1 = 15μH, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at V
CC
= 3.0V, T
A
= +25°C.)
1000pF
||
3k
load each transmitter,
150pF load each receiver
T
A
= +25°C, V
CC
= 3.0V, R
L
= 3k
to 7k
,
C
L
= 50pF to 2500pF, measured from
+3V to -3V or -3V to +3V
2500pF
||
3k
load
150pF load
150pF load
2500pF
||
3k
load
CONDITIONS
ns
μs
ns
200
140
500
500
450
t
DR
t
ET
t
DT
Receiver Output Disable Time
Transmitter Output Enable Time
Transmitter Output Disable Time
ns
90
300
t
ER
kbps
120
Data Rate
Receiver Output Enable Time
V/μs
3.0
30
Transition Region Slew Rate
1.8
2.7
t
PLHT
Transmitter Propagation Delay
ns
290
260
1.9
700
700
2.7
t
PHLR
t
PLHR
t
PHLT
Receiver Propagation Delay
μs
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
______________________________________________________________Pin Desc ription
Receiver Inputs
R2IN, R1IN
11, 12
Transmitter Outputs; swing between V+ and V-.
T2OUT, T1OUT
13, 14
Negative Supply generated on-board
V-
15
Terminals for Negative Charge-Pump Capacitor
C1-, C1+
16, 18
Positive Supply generated on-board
V+
19
Ground. Connect all GND pins to ground.
GND
5, 17, 20
Supply Voltage Input; 1.8V to 4.25V. Bypass to GND with at least 1μF. See Capacitor
Selectionsection.
V
CC
6
Transmitter Inputs
T1IN, T2IN
7, 8
Receiver Outputs; swing between GND and V
CC.
R1OUT, R2OUT
9, 10
Receiver Output Enable Control. Connect to V
CC
for normal operation. Connect to GND to
force the receiver outputs into high-Z state.
EN
4
Shutdown Control. Connect to V
CC
for normal operation. Connect to GND to shut down the
power supply and to disable the drivers. Receiver status is not changed by this control.
S———N
3
PIN
Not internally connected
N.C.
2
Inductor/Diode Connection Point
LX
1
FUNCTION
NAME
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX218CAP | 16-Bit Buffers/Drivers With 3-State Outputs 48-SSOP -40 to 85 |
| MAX218CPP | Replaced by SN74ABT16245A : 16-Bit Bus Transceivers With 3-State Outputs 48-TSSOP -40 to 85 |
| MAX218CWP | Replaced by SN74ABT16245A : 16-Bit Bus Transceivers With 3-State Outputs 48-SSOP -40 to 85 |
| MAX218EAP | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX218EPP | 16-Bit Bus Transceivers With 3-State Outputs 48-TSSOP -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
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