參數(shù)資料
型號: LC74201JE
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP128
封裝: QFP-128
文件頁數(shù): 8/21頁
文件大?。?/td> 301K
代理商: LC74201JE
Reading data
Set the AS/DS pin (pin 43) at low level to specify address input. Specify the address in the lowest seven bits. Set the
top bit to 1.
Set the AS/DS pin (pin 43) at high level to specify data input. Set the STB pin (pin 44) at high level to cause the LSI
to output the data.
Timing Characteristics at Ta = +25
°C, DV
DD1 = 4.0 V
Note: AD0 to AD7 use N-channel open-drain outputs. The standard values for tpLH1 and tpHL1 are for an output load capacitance of 50 pF, an external
pull-up resistor of 2.7 k
, and an output level of 5.0 V.
No. 5761-16/21
LC74201JE
Parameter
Symbol
Conditions
Ratings
Unit
min
max
Minimum input pulse width
twH1
STB pin high level pulse width
180
ns
twL1
STB pin low level pulse width
180
ns
Strobe rising time
tr1
STB pin
50
ns
Strobe falling time
tf1
STB pin
50
ns
Data setup time
tsDI1
AD7 to AD0
→ STB pin
25
ns
tsDI2
AS/DS
→ STB pin
25
ns
Data hold time
thDI1
STB
→ AD0 to AD7 pins
25
ns
thDI2
STB
→ AS/DS pin
25
ns
Single word read/write time
tword
AS/DS pin
200
ns
Data output propagation time
tpLH1
AD0 to AD7 data output high propagation time
150
ns
tpHL1
AD0 to AD7 data output low propagation time
55
ns
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