19-0199; Rev 1; 8/95
Programmable DTE/DCE,
+5V RS-232 Transceiver
____________________________Features
o Eliminates Null Modem Cables
________________________Applications
o Receivers Active in Shutdown
AT-Compatible Laptop Computers
o Programmable DTE or DCE Serial Port
o 1µF Charge-Pump Capacitors
o 116kbps Data Rate—Guaranteed
o 20µA Shutdown Mode
______________Ordering Information
AT-Compatible Desktop Computers
PART
Modems, Printers, and Other Peripherals
TEMP. RANGE
PIN-PACKAGE
MAX214CPI
0°C to +70°C
28 Wide SO
MAX214C/D
0°C to +70°C
Dice*
MAX214EPI
-40°C to +85°C
28 Plastic DIP
MAX214EWI
+5V
28 Plastic DIP
MAX214CWI
__________Typical Operating Circuit
0°C to +70°C
-40°C to +85°C
28 Wide SO
* Dice are specified at TA = +25°C.
1µF
16
27
1µF
1µF
1µF
VCC
C1+
15
__________________Pin Configuration
V+
28
C11
C2+
2
MAX214
V-
14
C2-
5 TA
DTE
TRA 9
DCE
23 RB
RTB 19
DTE
TC
TRC 18
DTE
DCE
22 RC
RTC 17
DTE
DCE
DCE
7 RDC
DTE
DTE
8
21
26
3
RRE 12
RE
DTE/DCE
SHDN
HI-Z
RDTC 11
C1+
3
26
SHDN
N.C.
4
25
TB
TA
5
24
TC
6
23
RB
RDC
7
22
RC
RE
8
21
DTE/DCE
9
20
TRB
RTA 10
19
RTB
RDTC 11
18
TRC
17
RTC
16
VCC
V- 14
TRB 20
DTE
C1-
27
GND 13
25 TB
28
2
RRE 12
DTE
1
TRA
RTA 10
C2-
RA
6 RA
C2+
HI-Z
DCE
24
TOP VIEW
1µF
15
V+
MAX214
GND
13
DIP/SO
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
MAX214
_______________General Description
The MAX214 +5V RS-232 transceiver provides a complete, 8-line, software-configurable, DTE or DCE port
RS-232 interface. Tx, Rx, RTS, CTS, DTR, DSR, DCD,
and RI circuits can be configured as either Data
Terminal Equipment (DTE) or Data Circuit-Terminating
Equipment (DCE) using the DTE/DCE control pin. The
MAX214 eliminates the need to swap cables when
switching between DTE and DCE configurations.
