SC16C2550B Datasheet, PDF (26/43 Pages) NXP Semiconductors – 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs

NXP 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 25. Dynamic characteristics
T_amb = −40 °C to +85 °C; tolerance of V_CC ± 10 %; unless otherwise specified.
Symbol Parameter
Conditions
V_CC = 2.5 V
Min Max
V_CC = 3.3 V
Min Max
V_CC = 5.0 V
Min Max
Unit
t_w1
clock pulse duration
10
-
6
-
6
- ns
t_w2
clock pulse duration
10
-
6
-
6
- ns
f_XTAL
oscillator/clock frequency
[1][2]
-
48
-
80
80 MHz
t_6s
address set-up time
0
-
0
-
0
- ns
t_6h
address hold time
0
-
0
-
0
- ns
t_7d
IOR delay from chip select
10
-
10
-
10
- ns
t_7w
IOR strobe width
25 pF load
77
-
26
-
23
- ns
t_7h
chip select hold time from
IOR
0
-
0
-
0
- ns
t_9d
read cycle delay
25 pF load
t_12d
delay from IOR to data
25 pF load
t_12h
data disable time
25 pF load
t_13d
IOW delay from chip select
t_13w
IOW strobe width
t_13h
chip select hold time from
IOW
20
-
20
-
20
- ns
-
77
-
26
-
23 ns
-
15
-
15
-
15 ns
10
-
10
-
10
- ns
20
-
20
-
15
- ns
0
-
0
-
0
- ns
t_15d
write cycle delay
t_16s
data set-up time
t_16h
data hold time
t_17d
delay from IOW to output 25 pF load
t_18d
delay to set interrupt from 25 pF load
Modem input
25
-
25
-
20
- ns
20
-
20
-
15
- ns
15
-
5
-
5
- ns
-
100
-
33
-
29 ns
-
100
-
24
-
23 ns
t_19d
delay to reset interrupt from 25 pF load
IOR
-
100
-
24
-
23 ns
t_20d
delay from stop to set
interrupt
[3]
-
T_RCLK
-
T_RCLK
-
T_RCLK s
t_21d
delay from IOR to reset 25 pF load
interrupt
-
100
-
29
-
28 ns
t_22d
delay from start to set
interrupt
-
100
-
45
-
40 ns
t_23d
delay from IOW to transmit
start
[3] _{8TRCLK 24TRCLK 8TRCLK 24TRCLK 8TRCLK 24TRCLK s}
t_24d
delay from IOW to reset
interrupt
-
100
-
45
-
40 ns
t_25d
delay from stop to set
RXRDY
[3]
-
T_RCLK
-
T_RCLK
-
T_RCLK s
t_26d
delay from IOR to reset
RXRDY
-
100
-
45
-
40 ns
t_27d
delay from IOW to set
TXRDY
-
100
-
45
-
40 ns
SC16C2550B_5
Product data sheet
Rev. 05 — 12 January 2009
© NXP B.V. 2009. All rights reserved.
26 of 43