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MAX232NG4 Datasheet, PDF (4/17 Pages) Texas Instruments – DUAL ELA-232 DRIBERS/RECEIVERS | |||
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MAX232, MAX232I
Ä
DUAL EIAÄ232 DRIVERS/RECEIVERS
Ä
SLLS047L â FEBRUARY 1989 â REVISED MARCH 2004
DRIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature range (see Note 4)
PARAMETER
TEST CONDITIONS
MIN TYPâ MAX UNIT
VOH High-level output voltage
VOL Low-level output voltageâ¡
T1OUT, T2OUT
T1OUT, T2OUT
RL = 3 k⦠to GND
RL = 3 k⦠to GND
5
7
V
â7
â5 V
ro
Output resistance
T1OUT, T2OUT VS+ = VSâ = 0, VO = ±2 V
300
â¦
IOS§ Short-circuit output current
T1OUT, T2OUT VCC = 5.5 V,
VO = 0
±10
mA
IIS Short-circuit input current
T1IN, T2IN
VI = 0
200 µA
â All typical values are at VCC = 5 V, TA = 25°C.
â¡ The algebraic convention, in which the least-positive (most negative) value is designated minimum, is used in this data sheet for logic voltage
levels only.
§ Not more than one output should be shorted at a time.
NOTE 4: Test conditions are C1âC4 = 1 µF at VCC = 5 V ± 0.5 V.
switching characteristics, VCC = 5 V, TA = 25°C (see Note 4)
PARAMETER
TEST CONDITIONS
SR
Driver slew rate
RL = 3 k⦠to 7 kâ¦,
See Figure 2
SR(t) Driver transition region slew rate
See Figure 3
Data rate
One TOUT switching
NOTE 4: Test conditions are C1âC4 = 1 µF at VCC = 5 V ± 0.5 V.
MIN TYP MAX UNIT
30 V/µs
3
V/µs
120
kbit/s
RECEIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature range (see Note 4)
PARAMETER
TEST CONDITIONS
MIN TYPâ MAX UNIT
VOH
VOL
VIT+
High-level output voltage
Low-level output voltageâ¡
Receiver positive-going input
threshold voltage
R1OUT, R2OUT
R1OUT, R2OUT
IOH = â1 mA
IOL = 3.2 mA
R1IN, R2IN
VCC = 5 V,
TA = 25°C
3.5
V
0.4 V
1.7 2.4 V
VITâ
Receiver negative-going input
threshold voltage
R1IN, R2IN
VCC = 5 V,
TA = 25°C
0.8 1.2
V
Vhys Input hysteresis voltage
R1IN, R2IN
VCC = 5 V
0.2 0.5
1V
ri
Receiver input resistance
R1IN, R2IN
VCC = 5,
TA = 25°C
3
5
7 kâ¦
â All typical values are at VCC = 5 V, TA = 25°C.
â¡ The algebraic convention, in which the least-positive (most negative) value is designated minimum, is used in this data sheet for logic voltage
levels only.
NOTE 4: Test conditions are C1âC4 = 1 µF at VCC = 5 V ± 0.5 V.
switching characteristics, VCC = 5 V, TA = 25°C (see Note 4 and Figure 1)
PARAMETER
tPLH(R) Receiver propagation delay time, low- to high-level output
tPHL(R) Receiver propagation delay time, high- to low-level output
NOTE 4: Test conditions are C1âC4 = 1 µF at VCC = 5 V ± 0.5 V.
TYP UNIT
500 ns
500 ns
4
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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