MAX240CMH-T Maxim Integrated, MAX240CMH-T Datasheet - Page 9

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MAX240CMH-T

Manufacturer Part Number
MAX240CMH-T
Description
RS-232 Interface IC
Manufacturer
Maxim Integrated
Series
MAX220, MAX222, MAX223, MAX225, MAX230, MAX231, MAX232, MAX232A, MAX233, MAX233A, MAX234, MAX235, MAX236, MAX237, MAX238, MAX239, MAX240, MAX241, MAX242, MAX243, MAX244, MAX245, MAX246, MAX247, MAX248, MAX249r
Datasheet

Specifications of MAX240CMH-T

Data Rate
120 Kbps
Operating Supply Voltage
5 V
Supply Current
15 mA
Operating Temperature Range
0 C to + 70 C
Mounting Style
SMD/SMT
Function
Transceiver
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Number Of Drivers
5
Number Of I/os
20
Number Of Receivers
5
Propagation Delay Time Ns
10 us
Shutdown
Yes
Maxim Integrated
ELECTRICAL CHARACTERISTICS—MAX225/MAX244–MAX249 (continued)
(MAX225, V
otherwise noted.) (Note 7)
Note 7: All units production tested at hot. Specifications over temperature are guaranteed by design.
Note 8: The 300Ω minimum specification complies with EIA/TIA-232E, but the actual resistance when in shutdown mode or V
POWER SUPPLY AND CONTROL LOGIC
AC CHARACTERISTICS
Supply Voltage Range
V
(Normal Operation)
Shutdown Supply Current
Control Input
Transition Slew Rate
Transmitter Propagation Delay
TLL to RS-232 (Normal Operation)
Receiver Propagation Delay
TLL to RS-232 (Normal Operation)
Receiver Propagation Delay
TLL to RS-232 (Low-Power Mode)
Transmitter + to - Propagation
Delay Difference (Normal Operation)
Receiver + to - Propagation
Delay Difference (Normal Operation)
Receiver-Output Enable Time
Receiver-Output Disable Time
Transmitter Enable Time
Transmitter Disable Time
CC
Supply Current
0V is 10MΩ as is implied by the leakage specification.
CC
PARAMETER
= +5.0V ±5%; MAX244–MAX249, V
+5V-Powered, Multichannel RS-232
No load
3kΩ loads on
all outputs
T
T
Leakage current
Logic-low voltage
Logic-high voltage
C
T
t
t
t
t
t
t
t
t
t
t
t
t
PHLT
PLHT
PHLR
PLHR
PHLS
PLHS
PHLT
PHLR
ER
DR
ET
DT
A
A
A
L
= +25°C, measured from +3V to -3V or -3V to +3V
, Figure 3
, Figure 4
= +25°C
= T
= 50pF to 2500pF, R
, Figure 3
, Figure 1
, Figure 1
, Figure 2
, Figure 2
, Figure 2
, Figure 2
- t
- t
MIN
PLHT
PLHR
CC
to T
= +5.0V ±10%, external capacitors C1–C4 = 1µF; T
MAX
MAX225
MAX244–MAX249
MAX225
MAX244–MAX249
MAX225
MAX244–MAX249
MAX246–MAX249
(excludes charge-pump startup)
MAX225/MAX245–MAX249
(includes charge-pump startup)
CONDITIONS
L
= 3kΩ to 7kΩ, V
MAX220–MAX249
MAX220–MAX249
CC
Drivers/Receivers
= +5V,
4.75
MIN
4.5
2.4
5
A
TYP
350
350
100
100
100
1.4
1.4
1.3
1.5
0.6
0.6
0.6
3.0
10
11
40
57
10
10
8
5
= T
MIN
MAX
to T
5.25
500
500
5.5
0.8
3.5
3.5
1.5
1.5
±1
20
30
25
50
30
10
10
MAX
UNITS
; unless
CC
V/µs
mA
µA
µA
ms
µs
µs
µs
ns
ns
ns
ns
µs
ns
V
V
=
9