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參數(shù)資料
型號: ST78C34CP40-F
廠商: Exar Corporation
文件頁數(shù): 3/21頁
文件大小: 0K
描述: IC UART FIFO 83B 40PDIP
標準包裝: 9
特點: *
FIFO's: 83 字節(jié)
規(guī)程: 打印機
電源電壓: 5V
帶并行端口:
安裝類型: 通孔
封裝/外殼: 40-DIP(0.600",15.24mm)
供應商設備封裝: 40-PDIP
包裝: 管件
6-13
ST78C34
Rev. 3.00
Symbol
Parameter
Limits
Units
Conditions
Min
Typ
Max
AC ELECTRICAL CHARACTERISTICS
T
A=0° - 70° C,
Vcc=5.0 V ± 10% unless otherwise specified.
T1
Clock high pulse duration
50
ns
T2
Clock low pulse duration
50
ns
External clock
T3
Clock rise/fall time
10
ns
T8
Chip select setup time
5
ns
T9
Chip select hold time
0
ns
T12
Data setup time
10
ns
T13
Data hold time
10
ns
T14
-IOW delay from chip select
10
ns
T15
-IOW strobe width
50
ns
T16
Chip select hold time from -IOW
0
ns
T17
Write cycle delay
55
ns
Tw
Write cycle=T15+T17
105
ns
T19
Data hold time
10
ns
T21
-IOR delay from chip select
10
ns
T23
-IOR strobe width
65
ns
T24
Chip select hold time from -IOR
0
ns
T25
Read cycle delay
55
ns
Tr
Read cycle=T23+T25
115
ns
T26
Delay from -IOR to data
35
ns
100 pF load
T39
-ACK pulse width
75
ns
T40
PD7 - PD0 setup time
10
ns
T41
PD7 - PD0 hold time
25
ns
T42
Delay from -ACK low to interrupt low
5
ns
T43
Delay from -IOR to reset interrupt
5
ns
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