sc68c2550b NXP Semiconductors, sc68c2550b Datasheet - Page 24

• Manufacturer Part Number: sc68c2550b
• Description: Sc68c2550b 5 V, 3.3 V And 2.5 V Dual Uart, 5 Mbit/s Max. , With 16-byte Fifos And Motorola Up Interface
• Manufacturer: NXP Semiconductors

Philips Semiconductors
10. Dynamic characteristics
Table 24:
T
[1]
[2]
[3]
9397 750 14941
Product data sheet
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
f
t
t
t
t
d1
d2
d3
d4
d6
d7
d8
d9
d10
d11
d12
d13
d14
d15
d16
d17
d18
h2
h3
h4
1w
XTAL
(RESET)
su1
su2
w1
amb
, t
RCLK is an internal signal derived from Divisor Latch LSB (DLL) and Divisor Latch MSB (DLM) divisor latches.
Applies to external clock; crystal oscillator max 24 MHz.
f
2w
= 40 C to +85 C; V
XTAL
Parameter
R/W to chip select
read cycle delay
delay from CS to data
data disable time
write cycle delay
delay from write to output
delay to set interrupt from modem input
delay to reset interrupt from read
delay from stop to set interrupt
delay from read to reset interrupt
delay from start to set interrupt
delay from write to transmit start
delay from write to reset interrupt
delay from stop to set RXRDY
delay from read to reset RXRDY
delay from write to set TXRDY
delay from start to reset TXRDY
R/W hold time from CS
data hold time
address hold time
clock cycle period
clock speed
RESET pulse width
address setup time
data setup time
CS strobe width
=
Dynamic characteristics
-------
t
3w
1
CC
= 2.5 V, 3.3 V
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs
10 % or 5 V
Rev. 02 — 28 April 2005
Conditions
25 pF load
25 pF load
25 pF load
25 pF load
25 pF load
25 pF load
25 pF load
10 %, unless specified otherwise.
[2] [3]
8T
Min
200
10
20
25
10
15
15
10
10
16
77
RCLK
[1]
V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CC
= 2.5 V
24T
16T
1T
1T
Max
100
100
100
100
100
100
100
100
77
15
48
RCLK
RCLK
[1]
[1]
[1]
[1]
-
-
-
RCLK
RCLK
-
-
-
-
-
-
-
-
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
SC68C2550B
V
8T
CC
Min
200
10
20
25
10
15
15
10
16
30
RCLK
[1]
6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
= 3.3 V and 5 V Unit
24T
16T
1T
1T
Max
100
26
15
33
24
24
29
70
75
70
80
RCLK
RCLK
[1]
[1]
[1]
[1]
-
-
-
RCLK
RCLK
-
-
-
-
-
-
-
-
24 of 35
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
ns
ns
ns
ns