sc28l198 NXP Semiconductors, sc28l198 Datasheet - Page 46

• Manufacturer Part Number: sc28l198
• Description: Octal Uart For 3.3v And 5v Supply Voltage
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS FOR COMMERCIAL AND INDUSTRIAL (3.3 V)
V
2006 Aug 10
Reset Timing
t
Bus Timing
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
I/O Port Pin Timing
t
t
t
Interrupt Timing
t
t
Tx / Rx Clock Timing, External
t
f
t
f
Transmitter Timing
t
t
Receiver Timing
t
t
ts
Sclk Timing
t
t
CC
RES
AS
AH
CS
CS
CH
CH
STP
RWS
RWH
DD
DF
DF
DS
DH
RWD
PS
PH
PD
IR
DD
RX
RX
TX
TX
TXD
TCS
RXS
RXH
SCLKL
SCLKH
SYMBOL
SYMBOL
Octal UART for 3.3 V and 5 V supply voltage
STRT
4
4
= 3.3 volts
1
FIGURE
FIGURE
10%; T
A
RESET pulse width
A0-A7 setup time before Sclk C3 rising edge
A0-A7 hold time after Sclk C3 rising edge
CEN setup time before Sclk C1 high (ASYNC)
CEN setup time before Sclk C2 high (SYNC)
CEN hold time after Sclk C3 high (SYNC)
CEN hold time after Sclk C4 high (ASYNC)
Cen high befoe next C2 to stop next cycle (Sync Mode)
W-Rn setup time before Sclk C2 rising edge
W-Rn hold time after Sclk C3 rising edge
Read cycle Data valid after Sclk C3 falling edge
Read cycle data bus floating after CEN high (ASYNC)
Read cycle data bus floating after C4 end (SYNC)
Write cycle data setup time before Sclk C4 rising edge
Write cycle data hold time after Sclk C4 rising edge
High time between CEN low (ASYNC)
I/O input setup time before Sclk C3 falling edge (Read IPR)
I/O input hold time after Sclk C4 rising edge (Read IPR)
I/O output valid from:
Write Sclk C4 rising edge (write to I/OPIOR)
IRQN from:
Interrupt vector valid after C3 rising edge
RxC high or low time
RxC frequency (16 X)
TxC high or low time
TxC frequency (16 X)
TxD output delay from TxC low
TxC output delay from TxD output data
RxD data setup time to RxC high (data)
RxD data hold time from RxC high (data)
RxD data low time to for receiving a valid Start Bit
Min low time at Vil (0.8V)
Min high time at Vih (2.0V)
Internal interrupt source active bid
Software reset to IRQN inactive
Write IMR (set or clear IMR bit))
= –40 C to +85 C; unless otherwise specified
(1 X)
(1 X)
PARAMETER
PARAMETER
3
to IRQN inactive
46
2
MIN
-15
10
22
30
25
50
30
25
25
25
15
18
12
22
25
20
25
25
15
15
8
8
7
0
0
0
0
17
32
1
1
1
LIMITS
TYP
12
20
17
11
14
14
50
26
60
40
20
50
14
14
10
10
Sclk
3
3
3
4
4
8
7
4
Sclk
Sclk
Sclk
MAX
8.0
40
30
20
80
43
90
60
30
90
15
SC28L198
8
1
1
Product data sheet
bit time
UNIT
UNIT
MHz
MHz
MHz
Sclk
Sclk
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns