Programmable DTE/DCE,
+5V RS-232 Transceiver
Table 3. Summary of EIA/TIA-232E, V.28
Specifications
PARAMETER
Driver Output
Voltage
0 Level
1 Level
Output Level, Max
Data Rate
Receiver Input
Voltage
0 Level
1 Level
Input Level, Max
Instantaneous
Slew Rate, Max
Driver Output
Short-Circuit
Current, Max
Transition Rate on
Driver Output
Driver Output
Resistance
V.28
EIA/TIA-232E
3kΩ
≤
R
L
≤
7kΩ,
C
L
≤
2500pF
CONDITIONS
3kΩ to 7kΩ load
3kΩ to 7kΩ load
No load
3kΩ
≤
R
L
≤
7kΩ,
C
L
≤
2500pF
EIA/TIA-232E, V.28
SPECIFICATIONS
+5.0V to +15V
TA
___________________Chip Topography
C2- C1-
C2+
SHDN
TB
TC
MAX214
HI-Z
C1+
-5.0V to -15V
±25V
Up to 20kbits/sec
RDC
RC
RA
RB
+3.0V to +15V
-3.0V to -15V
±25V
30V/µs
TRA
RTA
TRB
RTB
RE
0.178"
4.52mm
DTE/DCE
100mA
RRE
GND
V-
V+
V
CC
TRC
RTC
1ms or 3% of the
period
4% of the period
RDTC
0.156"
3.96mm
-2V < V
OUT
< +2V 300Ω
TRANSISTOR COUNT: 694;
SUBSTRATE CONNECTED TO V+.
Table 4. DB9/DB25 Cable Connections Commonly Used for EIA/TIA-232 and V.24
Asynchronous Interfaces
DB9 PIN
1
2
3
4
5
6
7
8
9
DB25 PIN
8
3
2
20
7
6
4
5
22
NAME
Received Line Signal Detector, sometimes
called Data Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request to Send
Clear to Send
Ring Indicator
SYMBOL
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RI
FUNCTION
Handshake from DCE
Data from DCE
Data from DTE
Handshake from DTE
Reference point for signals
Handshake from DCE
Handshake from DTE
Handshake from DCE
Handshake from DCE
11
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
