19-0199; Rev 1; 8/95
P ro g ra m m a b le DTE/DCE,
+5 V RS -2 3 2 Tra n s c e ive r
MAX214
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
The MAX214 +5V RS-232 transceiver provides a com-
plete, 8-line, software-configurable, DTE or DCE port
RS-232 interface. Tx, Rx, RTS, CTS, DTR, DSR, DCD,
a nd RI c irc uits c a n b e c onfig ure d a s e ithe r Da ta
Terminal Equipment (DTE) or Data Circuit-Terminating
Equipment (DCE) using the DTE/DCE control pin. The
MAX214 e limina te s the ne e d to s wa p c a b le s whe n
switching between DTE and DCE configurations.
♦ Eliminates Null Modem Cables
♦ Programmable DTE or DCE Serial Port
♦ 1µF Charge-Pump Capacitors
♦ 116kbps Data Rate—Guaranteed
♦ 20µA Shutdown Mode
♦ Receivers Active in Shutdown
________________________Ap p lic a t io n s
AT-Compatible Laptop Computers
______________Ord e rin g In fo rm a t io n
AT-Compatible Desktop Computers
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 Plastic DIP
28 Wide SO
Dice*
Modems, Printers, and Other Peripherals
MAX214CPI
MAX214CWI
MAX214C/D
MAX214EPI
MAX214EWI
__________Typ ic a l Op e ra t in g Circ u it
28 Plastic DIP
28 Wide SO
+5V
* Dice are specified at T = +25°C.
A
1µF
16
1µF
V
27
CC
__________________P in Co n fig u ra t io n
15
14
C1+
1µF
1µF
V+
V-
28
1
C1-
MAX214
C2+
TOP VIEW
2
5
C2-
TA
1µF
DTE
TRA 9
28
27
26
1
2
C2+
C2-
C1-
DCE
DCE
DCE
C1+
6
RA
TB
RB
TC
RTA
TRB
RTB
TRC
10
20
19
18
17
11
DTE
DTE
SHDN
3
HI-Z
N.C.
TA
25
23
24
4
25 TB
TC
5
24
23
22
21
20
MAX214
DTE
DTE
6
RA
RB
RC
RDC
7
8
DTE/DCE
TRB
RE
TRA
RTA
RDTC
RRE
GND
V-
22 RC
RTC
DTE
DCE
9
DCE
RDC
7
RDTC
19 RTB
TRC
17 RTC
16
15 V+
10
11
12
13
14
DTE
DTE
18
8
RRE 12
RE
21
26
3
DTE/DCE
SHDN
HI-Z
V
CC
GND
13
DIP/SO
________________________________________________________________ Maxim Integrated Products
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .