参数资料
型号: SC16C654IA68,512
厂商: NXP SEMICONDUCTORS
元件分类: 微控制器/微处理器
英文描述: 4 CHANNEL(S), 5M bps, SERIAL COMM CONTROLLER, PQCC68
封装: PLASTIC, MS-018, SOT-188-2, LCC-68
文件页数: 30/52页
文件大小: 647K
代理商: SC16C654IA68,512
Philips Semiconductors
SC16C654/654D
Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder
Product data
Rev. 04 — 19 June 2003
36 of 52
9397 750 11617
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
[1]
Applies to external clock, crystal oscillator max 24 MHz.
[2]
= 333 ns (for Baudratemax = 1.5 Mbits/s)
= 1
s (for Baudratemax = 460.8 kbits/s)
= 4
s (for Baudrate
max = 115.2 kbits/s)
[3]
When in both DMA mode 0 and FIFO enable mode, the write cycle delay should be larger than one x1, clock cycle.
10.1 Timing diagrams
t32d
write cycle delay
25
-
25
-
20
-
ns
t33s
data set-up time
20
-
15
-
15
-
ns
t33h
data hold time
15
-
5
-
5
-
ns
tRESET
Reset pulse width
200
-
40
-
40
-
ns
N
baud rate divisor
1
216
11
216
11
216
1R
clk
Table 28:
AC electrical characteristics…continued
Tamb = 40 °C to +85 °C; VCC = 2.5 V, 3.3 V or 5.0 V ±10%, unless otherwise specied.
Symbol
Parameter
Conditions
2.5 V
3.3 V
5.0 V
Unit
Min
Max
Min
Max
Min
Max
IOWstrobemax
1
2 Baudrate
max
()
--------------------------------------
=
Fig 9.
General read timing in 68 mode.
002aaa210
t30s
t31h
A0–A4
CS
R/W
D0–D7
t31d
t30w
t30d
t30h
t32s
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