ST16C580
AC ELECTRICAL CHARACTERISTICS
T =0° - 70°C (-40° - +85°C for Industrial grade packages), Vcc=3.3 - 5.0 V ± 10% unless otherwise specified.
A
Symbol
Parameter
T1w,T2w
T3w
T4w
T5s
T5h
T6s
T6h
T7d
T7w
T7h
T8d
T9d
T11d
T12d
T12h
T13d
T13w
T13h
T14d
T15d
T16s
T16h
T17d
T18d
T19d
T20d
T21d
T22d
T23d
T24d
T25d
T26d
T27d
T28d
TR
N
Clock pulse duration
Oscillator/Clock frequency
Address strobe width
Address setup time
Address hold time
Address setup time
Chip select hold time
-IOR delay from chip select
-IOR strobe width
Chip select hold time from -IOR
-IOR delay from address
Read cycle delay
-IOR to -DDIS delay
Delay from -IOR to data
Data disable time
-IOW delay from chip select
-IOW strobe width
Chip select hold time from -IOW
-IOW delay from address
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
Reset pulse width
Baud rate devisor
Limits
3.3
Min Max
17
8
35
5
5
5
0
10
35
0
10
40
15
35
25
10
40
0
10
40
20
5
50
40
40
1
45
45
8
24
45
1
45
45
8
40
1
216-1
Limits
5.0
Min Max
17
24
25
0
5
0
0
10
25
0
10
30
10
25
15
10
25
0
10
30
15
5
40
35
Units
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Conditions
Note 1:
Note 1:
Note 1:
100 pF load
Note 1:
Note 1:
100 pF load
100 pF load
35 ns 100 pF load
1 Rclk
40 ns 100 pF load
40 ns
8
24 Rclk
40 ns
1 Rclk
40 ns
40 ns
8 Rclk
40
ns
1 216-1 Rclk
Note 1: Applicable only when -AS is tied low.
Rev. 1.20
27