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SC16C654 Datasheet, PDF (35/52 Pages) NXP Semiconductors – Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder
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Philips Semiconductors
SC16C654/654D
Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder
10. Dynamic characteristics
Table 28: AC electrical characteristics
Tamb = −40 °C to +85 °C; VCC = 2.5 V, 3.3 V or 5.0 V ±10%, unless otherwise specified.
Symbol Parameter
Conditions
2.5 V
3.3 V
Min Max Min Max
t1w, t2w
t3w
clock pulse duration
oscillator/clock frequency
10 -
[1] -
48
6
-
-
80
t6s
address set-up time
0
-
0
-
t6h
address hold time
0
-
0
-
t7d
IOR delay from chip select
10 -
10 -
t7w
IOR strobe width
25 pF load
77 -
26 -
t7h
chip select hold time from IOR
0
-
0
-
t9d
read cycle delay
25 pF load
20 -
20 -
t12d
delay from IOR to data
t12h
data disable time
25 pF load
25 pF load
-
77
-
15
-
26
-
15
t13d
IOW delay from chip select
t13w
IOW strobe width
10 -
[2] 20
-
10 -
20 -
t13h
chip select hold time from IOW
t15d
write cycle delay
0
-
[3] 25
-
0
-
25 -
t16s
data set-up time
20 -
20 -
t16h
data hold time
15 -
5
-
t17d
delay from IOW to output
25 pF load
-
100
-
33
t18d
delay to set interrupt from Modem 25 pF load
-
100
-
24
input
t19d
delay to reset interrupt from IOR 25 pF load
-
100
-
24
t20d
delay from stop to set interrupt
-
1
-
1
t21d
delay from IOR to reset interrupt 25 pF load
-
100
-
29
t22d
delay from start to set interrupt
-
100
-
45
t23d
delay from IOW to transmit start
8
24
8
24
t24d
delay from IOW to reset interrupt
-
100
-
45
t25d
delay from stop to set RXRDY
-
1
-
1
t26d
delay from IOR to reset RXRDY
-
100
-
45
t27d
delay from IOW to set TXRDY
t28d
delay from start to reset TXRDY
-
100
-
45
-
8
-
8
t30s
address set-up time
t30w
chip select strobe width
10 -
25 pF load [1] 90 -
10 -
26 -
t30h
address hold time
15 -
15 -
t30d
read cycle delay
25 pF load
20 -
20 -
t31d
delay from CS to data
25 pF load
-
90
-
26
t31h
data disable time
25 pF load
-
15
-
15
t32s
write strobe set-up time
10 -
10 -
t32h
write strobe hold time
10 -
10 -
5.0 V
Min Max
6
-
80
0
-
0
-
10 -
23 -
0
-
20 -
-
23
-
15
10 -
15 -
0
-
20 -
15 -
5
-
-
29
-
23
-
23
-
1
-
28
-
40
8
24
-
40
-
1
-
40
-
40
-
8
10 -
23 -
15 -
20 -
-
23
-
15
10 -
10 -
Unit
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Rclk
ns
ns
Rclk
ns
Rclk
ns
ns
Rclk
ns
ns
ns
ns
ns
ns
ns
ns
9397 750 11617
Product data
Rev. 04 — 19 June 2003
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
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