SC28L92A1BS NXP [NXP Semiconductors], SC28L92A1BS Datasheet - Page 54

• Manufacturer Part Number: SC28L92A1BS
• Description: 3.3 V/5.0 V Dual Universal Asynchronous Receiver/Transmitter (DUART)
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
10. Dynamic characteristics
Table 67.
V
SC28L92_7
Product data sheet
Symbol
Reset timing (see
t
Bus timing
t
t
t
t
t
t
t
t
t
t
t
t
Port timing
t
t
t
Interrupt timing (see
t
RES
AS
AH
CS
CH
RW
DD
DA
DF
DI
DS
DH
RWD
PS
PH
PD
IR
CC
= 5.0 V
Parameter
reset pulse width
A0 to A3 set-up time to RDN, WRN LOW
A0 to A3 hold time from RDN, WRN LOW
CEN set-up time to RDN, WRN LOW
CEN hold time from RDN, WRN LOW
WRN, RDN pulse width (LOW time)
data valid after RDN LOW
RDN LOW to data bus active
data bus floating after RDN or CEN HIGH
RDN or CEN HIGH to data bus invalid
data bus set-up time before WRN or CEN
HIGH (write cycle)
data hold time after WRN HIGH
HIGH time between read and/or write
cycles
port in set-up time before RDN LOW
(Read IP ports cycle)
port in hold time after RDN HIGH
OP port valid after WRN or CEN HIGH
(OPR write cycle)
INTRN (or OP3 to OP7 when used as
interrupts)
Dynamic characteristics, 5 V operation
[2]
[2]
10 %, T
(see
(see
Figure
Figure
Figure
amb
Figure
= 40 C to +85 C, unless otherwise specified.
10)
11)
15)
16)
Rev. 07 — 19 December 2007
3.3 V/5.0 V Dual Universal Asynchronous Receiver/Transmitter
[1]
Conditions
125 pF load; see
for smaller loads
read Rx FIFO
(RxRDY/FFULL interrupt)
write Tx FIFO (TxRDY
interrupt)
reset command (delta
break change interrupt)
stop C/T command
(counter/timer interrupt
read IPCR (delta input port
change interrupt)
write IMR (clear of change
interrupt mask bit(s))
Figure 9
[2][4]
[3]
[4]
Min
100
10
20
0
0
15
-
0
-
0
25
0
17
0
0
-
-
-
-
-
-
-
Typ
18
6
12
-
-
8
40
-
-
-
17
10
40
40
40
40
40
40
40
12
20
20
SC28L92
© NXP B.V. 2007. All rights reserved.
Max
-
-
-
-
-
-
55
-
20
-
-
-
-
-
-
60
60
60
60
60
60
60
54 of 73
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns