English
Language : 

SC16C2550B Datasheet, PDF (27/42 Pages) NXP Semiconductors – 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs
◁
Philips Semiconductors
SC16C2550B
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs
10. Dynamic characteristics
Table 24: AC electrical characteristics
Tamb = −40 °C to +85 °C; VCC = 2.5 V, 3.3 V or 5.0 V ±10%, unless otherwise specified.
Symbol Parameter
Conditions
2.5 V
3.3 V
Min Max Min Max
t1w, t2w
t3w
clock pulse duration
oscillator/clock frequency
10 -
[1] -
48
6
-
-
80
t6s
address set-up time
0
-
0
-
t6h
address hold time
0
-
0
-
t7d
IOR delay from chip select
10 -
10 -
t7w
IOR strobe width
25 pF load
77 -
26 -
t7h
chip select hold time from IOR
0
-
0
-
t9d
read cycle delay
25 pF load
20 -
20 -
t12d
delay from IOR to data
t12h
data disable time
25 pF load
25 pF load
-
77
-
15
-
26
-
15
t13d
IOW delay from chip select
10 -
10 -
t13w
IOW strobe width
20 -
20 -
t13h
chip select hold time from IOW
0
-
0
-
t15d
write cycle delay
25 -
25 -
t16s
data set-up time
20 -
20 -
t16h
data hold time
15 -
5
-
t17d
delay from IOW to output
25 pF load
-
100
-
33
t18d
delay to set interrupt from Modem 25 pF load
-
100
-
24
input
t19d
delay to reset interrupt from IOR 25 pF load
-
100
-
24
t20d
delay from stop to set interrupt
-
1
-
1
t21d
delay from IOR to reset interrupt 25 pF load
-
100
-
29
t22d
delay from start to set interrupt
-
100
-
45
t23d
delay from IOW to transmit start
8
24
8
24
t24d
delay from IOW to reset interrupt
-
100
-
45
t25d
delay from stop to set RXRDY
-
1
-
1
t26d
delay from IOR to reset RXRDY
-
100
-
45
t27d
delay from IOW to set TXRDY
t28d
delay from start to reset TXRDY
-
100
-
45
-
8
-
8
tRESET
N
Reset pulse width
baud rate divisor
200 -
40
1
216 − 1 1
-
216 − 1
5.0 V
Min Max
6
-
80
0
-
0
-
10 -
23 -
0
-
20 -
-
23
-
15
10 -
15 -
0
-
20 -
15 -
5
-
-
29
-
23
-
23
-
1
-
28
-
40
8
24
-
40
-
1
-
40
-
40
-
8
40 -
1
216 − 1
Unit
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Rclk
ns
ns
Rclk
ns
Rclk
ns
ns
Rclk
ns
Rclk
[1] Applies to external clock, crystal oscillator max 24 MHz.
9397 750 14449
Product data
Rev. 02 — 14 December 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
27 of 42
 ▷