參數(shù)資料
型號(hào): SN74LS243N
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: QUAD BUS TRANSCEIVER
中文描述: LS SERIES, 4-BIT TRANSCEIVER, TRUE OUTPUT, PDIP14
封裝: PLASTIC, DIP-14
文件頁(yè)數(shù): 3/5頁(yè)
文件大小: 171K
代理商: SN74LS243N
AC WAVEFORMS
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
SWITCH POSITIONS
5-395
FAST AND LS TTL DATA
SN54/74LS242
SN54/74LS243
AC CHARACTERISTICS
(TA = 25
°
C, VCC = 5.0 V)
Symbol
Parameter
Limits
Unit
Test Conditions
LS242
LS243
Min
Typ
Max
Min
Typ
Max
tPLH
tPHL
Propagation Delay, Data to Output
9.0
12
14
18
12
12
18
18
ns
RL = 667
tPZH
Output Enable Time to HIGH Level
15
23
15
23
ns
CL = 45 pF,
tPZL
tPLZ
tPHZ
Output Enable Time to LOW Level
20
30
20
30
ns
Output Disable Time from LOW Level
15
25
15
25
ns
RL = 667
Output Disable Time from HIGH Level
10
18
10
18
ns
CL = 5.0 pF,
SYMBOL
SW1
SW2
tPZH
tPZL
tPLZ
tPHZ
Open
Closed
Closed
Open
Closed
Closed
Closed
Closed
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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