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MAX3232 数据表(PDF) 5 Page - Texas Instruments

部件名 MAX3232
功能描述  3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH -15-kV ESD PROTECTION
Download  14 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

MAX3232 数据表(HTML) 5 Page - Texas Instruments

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MAX3232
3V TO 5.5V MULTICHANNEL RS232 LINE DRIVER/RECEIVER
WITH ±15kV ESD PROTECTION
SLLS410I − JANUARY 2000 − REVISED JANUARY 2004
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
RECEIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 4)
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
VOH
High-level output voltage
IOH = −1 mA
VCC−0.6V VCC−0.1 V
V
VOL
Low-level output voltage
IOL = 1.6 mA
0.4
V
VIT+
Positive-going input threshold voltage
VCC = 3.3 V
1.5
2.4
V
VIT+
Positive-going input threshold voltage
VCC = 5 V
1.8
2.4
V
VIT−
Negative-going input threshold voltage
VCC = 3.3 V
0.6
1.2
V
VIT−
Negative-going input threshold voltage
VCC = 5 V
0.8
1.5
V
Vhys
Input hysteresis (VIT+ − VIT−)
0.3
V
ri
Input resistance
VI = ±3 V to ±25 V
3
5
7
k
W
† All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
NOTE 4: Test conditions are C1−C4 = 0.1
µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2−C4 = 0.33 µF at VCC = 5 V ± 0.5 V.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 3)
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
tPLH
Propagation delay time, low- to high-level output
CL= 150 pF
300
ns
tPHL
Propagation delay time, high- to low-level output
CL= 150 pF
300
ns
tsk(p)
Pulse skew‡
300
ns
† All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
‡ Pulse skew is defined as |tPLH − tPHL| of each channel of the same device.
NOTE 4: Test conditions are C1−C4 = 0.1
µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2−C4 = 0.33 µF at VCC = 5 V ± 0.5 V.
PARAMETER MEASUREMENT INFORMATION
50
TEST CIRCUIT
VOLTAGE WAVEFORMS
0 V
3 V
Output
Input
VOL
VOH
tTLH
Generator
(see Note B)
RL
RS-232
Output
tTHL
CL
(see Note A)
SR(tr)
+
6V
t
THL
or t
TLH
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
1.5 V
1.5 V
3 V
−3 V
3 V
−3 V
Figure 1. Driver Slew Rate


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