Programmable DTE/DCE,
+5V RS-232 Transceiver
MAX214
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 4.5V to 5.5V, C1 to C4 = 1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
POWER SUPPLY
V
CC
Supply Current
Shutdown Supply Current
No load, T
A
= +25°C
DTE/DCE = 0V, SHDN =
HI-Z = V
CC
, Figure 1
T
A
= +25°C
T
A
= T
MIN
to T
MAX
0.8
1.3
1.3
2.0
±1
9
4
20
20
50
mA
µA
CONDITIONS
MIN
TYP
MAX
UNITS
CONTROL LOGIC
(DTE/DCE,
SHDN, HI-Z)
Logic Input Threshold Low
Logic Input Threshold High
Input Leakage Current
AC CHARACTERISTICS
Data Rate
Normal operation, transmitters and receivers
Receivers in shutdown mode
T
A
= +25°C, V
CC
= 5V, R
L
= 3kΩ to 7kΩ,
C
L
= to 2500pF,
measured from 3V to -3V or -3V to 3V
t
PHLT
t
PLHT
t
PHLT
- t
PLHT
t
PHLR
, t
PLHR
t
PHLR
t
PLHR
6
200
20
12
1.3
1.4
100
0.4
0.4
1.5
100
1.5
10
10
30
3.5
3.5
116
kbps
V
V
µA
Transition-Region Slew Rate
Transmitter Propagation Delay,
TTL to RS-232 (Normal Operation)
Transmitter + to - Propagation-Delay
Difference (Normal Operation)
Receiver Propagation Delay,
RS-232 to TTL (Normal Operation)
Receiver Propagation Delay,
RS-232 to TTL (Shutdown Mode)
V/µs
µs
ns
µs
µs
ns
Receiver Propagation-Delay Difference
t
PHLT
- t
PLHT
(Normal Operation)
MODE-CHANGE TIMING (DTE/DCE)
Transmitter Enable Time
Transmitter Disable Time
Transmitter DTE/DCE Switch Time
Receiver DTE/DCE Switch Time
Receiver Termination-Resistor
Connect/Disconnect Time
Receiver Termination-Resistor Connect
Entering SHDN Time
Receiver Termination-Resistor
Disconnect Exiting SHDN Time
t
TEN
(includes charge-pump start-up time)
t
TTR
t
TSW
t
RSW
(SHDN = 0V)
250
600
600
300
300
250
300
µs
ns
ns
ns
ns
µs
ns
Note 1:
The 300Ω minimum is the EIA/TIA-232E specification, but the actual resistance when in shutdown mode or when V
CC
= 0V
is typically 300kΩ.
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3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
