参数资料
型号: N74F243N,602
厂商: NXP Semiconductors
文件页数: 7/10页
文件大小: 0K
描述: IC BUS TRANSCVR 3-ST 4BIT 14DIP
标准包装: 1,000
系列: 74F
逻辑类型: 收发器,非反相
元件数: 1
每个元件的位元数: 4
输出电流高,低: 15mA,64mA
电源电压: 4.5 V ~ 5.5 V
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 14-DIP(0.300",7.62mm)
供应商设备封装: 14-DIP
包装: 管件
Philips Semiconductors
Product specification
74F242/74F243
Transceivers
1990 Aug 30
6
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
VCC = +5V
Tamb = +25°C
CL = 50pF, RL = 500
VCC = +5V ± 10%
Tamb = 0°C to +70°C
CL = 50pF, RL = 500
UNIT
MIN
TYP
MAX
MIN
MAX
tPLH
tPHL
Propagation delay
An, Bn to Bn, An
Waveform
NO TAG
2.5
2.0
3.5
3.0
6.0
4.5
2.5
2.0
7.0
4.5
ns
tPZH
tPZL
Output Enable time
to High or Low level
74F242
Waveform 3
Waveform 4
3.0
3.5
4.0
6.5
7.0
9.0
3.0
3.5
8.0
10.5
ns
tPHZ
tPLZ
Output Disable time
from High or Low level
Waveform 3
Waveform 4
3.5
5.5
6.0
8.5
9.5
3.5
9.0
11.0
ns
tPLH
tPHL
Propagation delay
An, Bn to Bn, An
Waveform 2
2.5
4.0
5.2
2.0
6.2
6.5
ns
tPZH
tPZL
Output Enable time
to High or Low level
74F243
Waveform 3
Waveform 4
2.0
4.5
5.0
5.7
7.5
2.0
6.7
8.5
ns
tPHZ
tPLZ
Output Disable time
from High or Low level
Waveform 3
Waveform 4
2.0
4.0
4.5
6.0
2.0
7.0
ns
AC WAVEFORMS
For all waveforms, VM = 1.5V.
An, Bn
Bn, An
tPHL
VM
tPLH
SF00773
Waveform 1.
For Inverting Outputs
VM
Bn, An
An, Bn
tPLH
tPHL
SF00202
Waveform 2.
For Non-Inverting Outputs
VM
tPLZ
tPZH
VOH –0.3V
OEA
OEB
An, Bn
SF00775
0V
Waveform 3.
3-State Output Enable Time to High Level and
Output Disable Time from High Level
VM
tPLZ
tPZL
VOL +0.3V
OEA
OEB
An, Bn
SF00776
Waveform 4.
3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
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