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参数资料
| 型号： | SN74LS242D |
| 厂商： | MOTOROLA INC |
| 元件分类： | 总线收发器 |
| 英文描述： | LS SERIES, DUAL 4-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO14 |
| 封装： | SOIC-14 |
| 文件页数： | 2/3页 |
| 文件大小： | 63K |
| 代理商： | SN74LS242D |
5-2
FAST AND LS TTL DATA
SN54/74LS242
SN54/74LS243
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
–55
0
25
125
70
°C
IOH
Output Current — High
54, 74
– 3.0
mA
54
74
–12
–15
mA
IOL
Output Current — Low
54
74
12
24
mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Sb l
P
Limits
Ui
T
C
di i
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
VIL
Input LOW Voltage
74
0.8
V
pg
All Inputs
VT+–VT–
Hysteresis
0.2
0.4
V
VCC = MIN
VIK
Input Clamp Diode Voltage
– 0.65
– 1.5
V
VCC = MIN, IIN = – 18 mA
VOH
Output HIGH Voltage
54, 74
2.4
3.4
V
VCC = MIN, IOH = – 3.0 mA
VOH
Output HIGH Voltage
54, 74
2.0
V
VCC = MIN, IOH = MAX
VOL
Output LOW Voltage
54, 74
0.25
0.4
V
IOL = 12 mA
VCC = VCC MIN,
VIN =VIL or VIH
VOL
Output LOW Voltage
74
0.35
0.5
V
IOL = 24 mA
VIN = VIL or VIH
per Truth Table
IOZH
Output Off Current HIGH
40
A
VCC = MAX, VOUT = 2.7 V
IOZL
Output Off Current LOW
– 200
A
VCC = MAX, VOUT = 0.4 V
I
HIGH C
D, E1, E2
20
A
VCC = MAX, VIN = 2.7 V
IIH
Input HIGH Current
E1, E2
0.1
mA
VCC = MAX, VIN = 7.0 V
D Input
0.1
mA
VCC = MAX, VIN = 5.5 V
IIL
Input LOW Current
– 0.2
mA
VCC = MAX, VIN = 0.4 V
IOS
Output Short Circuit Current (Note 1)
–40
– 225
mA
VCC = MAX
I
Power Supply Current
Total, Output HIGH
38
A
V
MAX
ICC
Total, Output LOW
50
mA
VCC = MAX
CC
Total at HIGH Z
LS242
50
CC
Total at HIGH Z
LS243
54
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LS242M | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS242MEL | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS242N | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS243D | 功能描述:总线收发器 Quad bus transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| SN74LS243DE4 | 功能描述:总线收发器 Quad bus transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
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