參數(shù)資料
型號(hào)： MAX214
廠(chǎng)商： Maxim Integrated Products, Inc.
英文描述： 16-Bit Buffers/Drivers With 3-State Outputs 48-TVSOP -40 to 85
中文描述： 可編程DTE/DCE、+5V、RS-232收發(fā)器
文件頁(yè)數(shù)： 11/12頁(yè)
文件大小： 132K
代理商： MAX214
M
Programmable DT E/DCE,
+5V RS -232 Transc eiver
______________________________________________________________________________________
11
PARAMETER
CONDITIONS
Driver Output
Resistance
-2V < V
OUT
< +2V
Transition Rate on
Driver Output
V.28
Instantaneous
Slew Rate, Max
Driver Output
Short-Circuit
Current, Max
3k
to 7k
load
300
100mA
30V/
μ
s
+5.0V to +15V
-5.0V to -15V
3k
to 7k
load
3k
≤
R
L
≤
7k
,
C
L
≤
2500pF
EIA/TIA-232E
4% of the period
EIA/TIA-232E, V.28
SPECIFICATIONS
Driver Output
Voltage
0 Level
1 Level
Output Level, Max
1ms or 3% of the
period
DB9 PIN
DB25 PIN
NAME
SYMBOL
FUNCTION
1
8
DCD
Handshake from DCE
2
3
Receive Data
RxD
Data from DCE
3
2
Transmit Data
Data from DTE
4
20
Data Terminal Ready
DTR
Handshake from DTE
5
7
Signal Ground
GND
6
6
Data Set Ready
DSR
Handshake from DCE
7
4
Request to Send
RTS
Handshake from DTE
8
5
Clear to Send
CTS
Handshake from DCE
9
22
Ring Indicator
RI
Handshake from DCE
Reference point for signals
Received Line Signal Detector, sometimes
called Data Carrier Detect
TxD
Table 3. Summary of EIA/TIA-232E, V.28
Specifications
Table 4. DB9/DB25 Cable Connections Commonly Used for EIA/TIA-232 and V.24
Asynchronous Interfaces
Data Rate
3k
≤
R
L
≤
7k
,
C
L
≤
2500pF
Up to 20kbits/sec
No load
±25V
-3.0V to -15V
±25V
+3.0V to +15V
Receiver Input
Voltage
0 Level
1 Level
Input Level, Max
___________________Chip Topography
TRANSISTOR COUNT: 694;
SUBSTRATE CONNECTED TO V+.
TC
0.178"
4.52mm
0.156"
3.96mm
RB
RC
DTE/DCE
TRB
RTB
HI-Z
C2+
C1+
SHDN
TB
RTA
TRA
RE
RDC
RA
TA
C2-
C1-
RDTC
RRE
GND
V-
V+
V
CC
RTC
TRC
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