sc16c850iet NXP Semiconductors, sc16c850iet Datasheet - Page 39

• Manufacturer Part Number: sc16c850iet
• Description: Sc16c850 2.5 V To 3.3 V Uart, 5 Mbit/s Max. With 128-byte Fifos, Infrared Irda , And 16 Mode Or 68 Mode Parallel Bus Interface
• Manufacturer: NXP Semiconductors

NXP Semiconductors
10. Dynamic characteristics
Table 37.
T
[1]
[2]
[3]
[4]
SC16C850_1
Product data sheet
Symbol
t
t
t
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
N
WH
WL
w(clk)
XTAL1
su(A)
h(A)
d(CS-IOR)
w(IOR)
h(IOR-CS)
d(IOR)
d(IOR-Q)
dis(IOR-QZ)
d(CSL-IOWL)
w(IOW)
h(IOW-CS)
d(IOW)
su(D-IOWH)
h(IOWH-D)
d(IOW-Q)
d(modem-INT)
d(IOR-INTL)
d(stop-INT)
d(start-INT)
d(IOW-TX)
d(IOW-INTL)
w(RESET)
amb
Applies to external clock, crystal oscillator max 24 MHz.
Maximum frequency =
10 % of the data bus output voltage level.
RCLK is an internal signal derived from Divisor Latch LSB (DLL) and Divisor Latch MSB (DLM) divisor latches.
= 40 C to +85 C; tolerance of V
Dynamic characteristics - Intel or 16 mode
Parameter
pulse width HIGH
pulse width LOW
clock pulse width
frequency on pin XTAL1
address set-up time
address hold time
delay time from CS to IOR
IOR pulse width time
hold time from IOR to chip select
IOR delay time
delay time from IOR to data output
disable time from IOR to
high-impedance data output
delay time from CS LOW to IOW LOW
IOW pulse width time
hold time from IOW to CS
IOW delay time
set-up time from data input to
IOW HIGH
data input hold time after IOW HIGH
delay time from IOW to data output
delay time from modem to INT
delay time from IOR to INT LOW
delay time from stop to INT
delay time from start to INT
delay time from IOW to TX
delay time from IOW to INT LOW
pulse width on pin RESET
baud rate divisor
-------------- -
t
w clk
1
DD
[3]
10 %; unless otherwise specified.
2.5 V to 3.3 V UART with 128-byte FIFOs and IrDA encoder/decoder
Rev. 01 — 10 January 2008
Conditions
25 pF load
25 pF load
25 pF load
25 pF load
25 pF load
25 pF load
25 pF load
25 pF load
25 pF load
[1][2]
[4]
[4]
[4]
8T
12.5
Min
10
10
10
35
10
10
15
15
10
10
10
RCLK
6
6
0
0
1
V
-
-
-
-
-
-
-
-
-
DD
= 2.5 V
24T
(2
1T
1T
Max
16
80
35
17
40
35
35
55
RCLK
RCLK
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
RCLK
1)
8T
12.5
Min
26
10
20
20
10
RCLK
SC16C850
6
6
5
5
5
0
5
0
5
5
1
V
-
-
-
-
-
-
-
-
-
DD
© NXP B.V. 2008. All rights reserved.
= 3.3 V
24T
(2
1T
1T
Max
16
80
26
15
33
24
24
45
RCLK
RCLK
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
RCLK
1)
39 of 53
Unit
ns
ns
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
ns
ns