SC16C650B Datasheet, PDF (34/51 Pages) NXP Semiconductors – 5 V, 3.3 V and 2.5 V UART with 32-byte FIFOs and infrared (IrDA) encoder/decoder

Philips Semiconductors
SC16C650B
UART with 32-byte FIFOs and IrDA encoder/decoder
Table 28: AC electrical characteristics…continued
T_amb = −40 °C to +85 °C; V_CC = 2.5 V, 3.3 V or 5 V ±10%, unless otherwise specified.
Symbol Parameter
Conditions
2.5 V
3.3 V
5.0 V
Unit
Min Max Min Max Min Max
t_28d
t_RESET
N
delay from start to reset TXRDY
Reset pulse width
baud rate divisor
-
8
-
100 -
40
1
2¹⁶ − 1 1
8
-
-
40
2¹⁶ − 1 1
8
R_clk
-
ns
2¹⁶ − 1 R_clk
[1] Applies to external clock, crystal oscillator max 24 MHz.
[2] Applicable only when AS is tied LOW.
10.1 Timing diagrams
AS
A0–A2
CS2
CS1–CS0
IOR, IOR
DDIS
D0–D7
t_4w
t_5s
t_5h
VALID
ADDRESS
t_6s
t_6h
t_7d
t_8d
VALID
t_7w
ACTIVE
t_7h
t_9d
t_11d
t_11d
ACTIVE
t_12d
t_12h
DATA
Fig 9. General read timing when using AS signal.
002aaa331
9397 750 14451
Product data
Rev. 03 — 10 December 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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