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参数资料
| 型号： | SN74LS245DW |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 总线收发器 |
| 英文描述： | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封装： | PLASTIC, SOIC-20 |
| 文件页数： | 2/4页 |
| 文件大小： | 154K |
| 代理商： | SN74LS245DW |
5-399
FAST AND LS TTL DATA
SN54/74LS245
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
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
All Inputs
VIL
Input LOW Voltage
74
0.8
V
Guaranteed Input LOW Voltage for
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
per Truth Table
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
20
A
VCC = MAX, VOUT = 2.7 V
IOZL
Output Off Current LOW
– 200
A
VCC = MAX, VOUT = 0.4 V
IIH
Input HIGH Current
A or B, DR or E
20
A
VCC = MAX, VIN = 2.7 V
IIH
Input HIGH Current
DR or E
0.1
mA
VCC = MAX, VIN = 7.0 V
IH
A or B
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
ICC
Power Supply Current
Total, Output HIGH
70
mA
VCC = MAX
ICC
Total, Output LOW
90
mA
VCC = MAX
Total at HIGH Z
95
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (TA = 25°C, VCC = 5.0 V, TRISE /TFALL ≤ 6.0 ns)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
tPLH
tPHL
Propagation Delay, Data to Output
8.0
12
ns
CL = 45 pF,
RL = 667
tPZH
Output Enable Time to HIGH Level
25
40
ns
CL = 45 pF,
RL = 667
tPZL
Output Enable Time to LOW Level
27
40
ns
tPLZ
Output Disable Time from LOW Level
15
25
ns
CL = 5.0 pF,
RL = 667
tPHZ
Output Disable Time from HIGH Level
15
25
ns
CL = 5.0 pF,
RL = 667
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LS245DW | 制造商:Texas Instruments 功能描述:ICS UNIVERSAL BUS FUNCTIONS LOGIC ROHS |
| SN74LS245DWG4 | 功能描述:总线收发器 Octal 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 |
| SN74LS245DWR | 功能描述:总线收发器 Octal Bus 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 |
| SN74LS245DWR2 | 制造商:ON Semiconductor 功能描述:Bus XCVR Single 8-CH 3-ST 20-Pin SOIC W T/R |
| SN74LS245DWRG4 | 功能描述:总线收发器 Octal 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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