DS14C239 Datasheet, PDF (3/8 Pages) National Semiconductor (TI) – Dual Supply TIA/EIA-232 3 x 5 Driver/Receiver

Electrical Characteristics (Continued)
Over recommended operating conditions unless otherwise specified (Note 2)
Symbol
Parameter
Conditions
RECEIVER CHARACTERISTICS (Continued)
R_IN
I_IN
V_OH
V_OL
V_IH
V_IL
I_IH
I_IL
I_OZ
Input Resistance
Input Current
High Level Output Voltage
Low Level Output Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
Output Leakage Current
V_IN e a15V
V_IN e a3V
V_IN e b3V
V_IN e b15V
V_IN e b3V I_O e b3 2 mA
V_IN e b3V I_O e b20 mA
V_IN e a3V I_O e a3 2 mA
EN
V_IN ^t 2 4V
V_IN ^s 0 8V
EN e V_CC 0V ^s R_OUT ^s V_CC
Min
Typ
Max
Units
30
45
70
kX
2 14
38
50
mA
0 43
06
10
mA
b1 0 b0 6 b0 43
mA
b5 0 b3 8 b2 14
mA
35
45
V
40
49
V
0 25
04
V
24
GND
V_CC
V
08
V
b10
a10
mA
b10
a10
mA
b10
01
a10
mA
Switching Characteristics
Over recommended operating conditions unless otherwise specified (Note 4)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
DRIVER CHARACTERISTICS
t_PLH
Propagation Delay LOW to HIGH
R_L e 3 kX
t_PHL
Propagation Delay HIGH to LOW
C_L e 50 pF
(Figures 1 and 2)
t_sk
l l ^{Skew t}PLH^–tPHL
SR1
Output Slew Rate
R_L e 3kX to 7 kX C_L e 50 pF
V^{a s} 10 35V
07
40
ms
07
40
ms
0
10
ms
40
17
30
V ms
SR2
Output Slew Rate
R_L e 3 kX C_L e 2500 pF
V^{a s} 10 35V
30
64
V ms
RECEIVER CHARACTERISTICS
t_PLH
t_PHL
t_sk
t_PLZ
t_PZL
t_PHZ
t_PZH
t_nw
Propagation Delay LOW to HIGH
Propagation Delay HIGH to LOW
l l ^{Skew t}PLH^–tPHL
Input Pulse Width ^l 10 ms
C_L e 50 pF
(Figures 3 and 4)
(Figures 5 and 7)
(Figures 5 and 6)
Noise Pulse Width Rejected
(Figures 3 and 4)
21
65
ms
29
65
ms
08
20
ms
0 25
20
ms
0 70
20
ms
0 25
20
ms
0 70
20
ms
20
10
ms
Note 1 ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed They are not meant to imply that the devices
should be operated at these limits The tables of ‘‘Electrical Characteristics’’ specify conditions for device operation
Note 2 Current into device pins is defined as positive Current out of device pins is defined as negative All voltages are referenced to ground unless otherwise
specified
Note 3 I_OS^a and I_OS^b values are for one output at a time If more than one output is shorted simultaneously the device power dissipation may be exceeded
Note 4 Receiver AC input waveform for test purposes t_r e t_f e 200 ns V_IH e 3V V_IL e b3V f e 64 kHz (128 kbits sec) Driver AC input waveform for test
purposes t_r e t_f s 10 ns V_IH e 3V V_IL e 0V f e 64 kHz (128 kbits sec)
Note 5 All typicals are given for V_CC e 5 0V and T_A e a25 C V^a e 10 35V
Note 6 Ratings apply to ambient temperature at a25 C Above this temperature derate N package 20 mW C and WM package 13 5 mW C
3
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