參數(shù)資料
型號: ST16C552A
廠商: Exar Corporation
英文描述: Dual UART with 16-Byte FIFO and Parallel Printer Port(雙通用異步接收器/發(fā)送器(帶16字節(jié)的先進先出和并行打印機端口))
中文描述: 雙UART),16字節(jié)FIFO和并行打印機端口(雙通用異步接收器/發(fā)送器(帶16字節(jié)的先進先出和并行打印機端口)
文件頁數(shù): 27/40頁
文件大小: 463K
代理商: ST16C552A
27
ST16C552/552A
Rev. 3.30
T
1w
,T
2w
T
3w
T
6s
T
7d
T
7w
T
7h
T
9d
T
12d
T
12h
T
13d
T
13w
T
13h
T
15d
T
16s
T
16h
T
17d
T
18d
Clock pulse duration
Oscillator/Clock frequency
Address setup time
-IOR delay from chip select
-IOR strobe width
Chip select hold time from -IOR
Read cycle delay
Delay from -IOR to data
Data disable time
-IOW delay from chip select
-IOW strobe width
Chip select hold time from -IOW
Write cycle delay
Data setup time
Data hold time
Delay from -IOW to output
Delay to set interrupt from MODEM
input
Delay to reset interrupt from -IOR
Delay from stop to set interrupt
Delay from -IOR to reset interrupt
Delay from stop to interrupt
Delay from initial INT reset to transmit
start
Delay from -IOW to reset interrupt
Delay from stop to set -RxRdy
Delay from -IOR to reset -RxRdy
Delay from -IOW to set -TxRdy
Delay from start to reset -TxRdy
-ACK pulse width
PD7 - PD0 setup time
PD7 - PD0 hold time
Delay from -ACK low to interrupt low
Delay from -IOR to reset interrupt
Reset pulse width
Baud rate devisor
17
17
ns
8
24
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
10
35
0
40
0
10
25
0
30
35
25
25
15
10
40
0
40
20
5
10
25
0
30
15
5
50
40
40
35
100 pF load
100 pF load
T
19d
T
20d
T
21d
T
22d
T
23d
40
1
45
45
24
35
1
40
40
24
ns
Rclk
ns
ns
Rclk
100 pF load
100 pF load
8
8
T
24d
T
25d
T
26d
T
27d
T
28d
T
39w
T
40s
T
41h
T
42d
T
43d
T
R
N
45
1
45
45
8
40
1
40
40
8
ns
Rclk
ns
ns
Rclk
ns
ns
ns
ns
ns
ns
Rclk
75
15
30
10
10
40
1
75
10
25
5
5
40
1
2
16
-1
2
16
-1
AC ELECTRICAL CHARACTERISTICS
T
A
=0° - 70°C (-40° - +85°C for Industrial grade packages), Vcc=3.3 - 5.0 V ± 10% unless otherwise specified.
Symbol
Parameter
Limits
3.3
Min
Limits
5.0
Min
Units
Conditions
Max
Max
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