参数资料
型号: SN75157D
厂商: Texas Instruments
文件页数: 8/14页
文件大小: 0K
描述: IC DUAL DIFF LINE REC 8-SOIC
标准包装: 75
类型: 线路接收器
驱动器/接收器数: 0/2
规程: RS422,RS423
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
产品目录页面: 912 (CN2011-ZH PDF)
其它名称: 296-6837-5
SN75157
DUAL DIFFERENTIAL LINE RECEIVER
SLLS084C – SEPTEMBER 1980 – REVISED MARCH 1997
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage, common-mode input
voltage, and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIT
Input threshold voltage (VIT and VIT )
– 0.2
0.2
V
VIT
Input threshold voltage (VIT + and VIT –)
See Note 3
– 0.4
0.4
V
Vhys
Hysteresis voltage (VIT + – VIT –)
70
mV
VOH
High-level output voltage
VID = 0.2 V,
IO = – 1 mA
2.5
3.5
V
VOL
Low-level output voltage
VID = – 0.2 V,
IO = 20 mA
0.35
0.5
V
II
Input current
VCC = 0 to 5.5 V,
VI = 10 V
1.1
3.25
mA
II
Input current
CC
,
See Note 4
VI = – 10 V
– 1.6
– 3.25
mA
IOS
Short-circuit output current§
VO = 0,
VID = 0.2 V
–40
–75
– 100
mA
ICC
Supply current
VID = – 0.5 V,
No load
35
50
mA
The algebraic convention, where the less positive (more negative) limit is designated as minimum, is used in this data sheet for threshold levels
only.
All typical values are at VCC = 5 V, TA = 25°C.
§ Only one output should be shorted at a time and duration of the short circuit should not exceed one second.
NOTES:
3. The expanded threshold parameter is tested with a 500-
resistor in series with each input.
4. The input not under test is grounded.
switching characteristics, VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
Propagation delay time, low- to high-level output
CL =15 pF
See Figure 1
15
25
ns
tPHL
Propagation delay time, high- to low-level output
CL = 15 pF,
See Figure 1
13
25
ns
PARAMETER MEASUREMENT INFORMATION
0.5 V
Input
(see Note B)
– 0.5 V
Output
50%
tPLH
tPHL
1.5 V
VOLTAGE WAVEFORMS
TEST CIRCUIT
VCC +
Output
392
Input
51
CL = 15 pF
(see Note A)
3.92 k
NOTES: A. CL includes probe and jig capacitance.
B. The input pulse is supplied by a generator having the following characteristics: tr ≤ 5 ns, tf ≤ 5 ns, PRR ≤ 5 MHz, duty cycle = 50%.
Figure 1. Test Circuit and Voltage Waveforms
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