sc16c650b-03 NXP Semiconductors, sc16c650b-03 Datasheet - Page 9
sc16c650b-03
Manufacturer Part Number
sc16c650b-03
Description
Sc16c650b 5 V, 3.3 V And 2.5 V Uart With 32-byte Fifos And Infrared Irda Encoder/decoder
Manufacturer
NXP Semiconductors
Datasheet
1.SC16C650B-03.pdf
(51 pages)
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Philips Semiconductors
Table 2:
[1]
9397 750 14451
Product data
Symbol
RX
TX
TXRDY
V
GND
IOW
IOW
XTAL1
XTAL2
n.c.
CC
In sleep mode, XTAL2 is left floating.
[1]
Pin description
Pin
PLCC44 LQFP48 HVQFN32 DIP40
11
13
27
44
22
21
20
18
19
1, 12,
23, 34
7
8
23
42
18
17
16
14
15
1, 6, 13,
21, 25,
36, 37,
48
…continued
5
6
15
27
13
-
11
9
10
12
10
11
24
40
20
19
18
16
17
-
Rev. 03 — 10 December 2004
Type
I
O
O
Power 2.5 V, 3 V or 5 V supply voltage.
Power Ground voltage.
I
I
I
O
-
UART with 32-byte FIFOs and IrDA encoder/decoder
Description
Serial data input. RX is serial data input from a connected
communications device.
Serial data output. TX is composite serial data output to a
connected communication device. TX is set to the marking
(HIGH) level as a result of Master Reset.
Transmitter ready. Transmitter DMA signaling is available
with TXRDY. When operating in the FIFO mode, one of two
types of DMA signaling can be selected using FCR[3]. When
operating in the 16C450 mode, only DMA mode 0 is allowed.
Mode 0 supports single-transfer DMA in which a transfer is
made between CPU bus cycles. Mode 1 supports
multi-transfer DMA in which multiple transfers are made
continuously until the transmit FIFO has been filled.
Write inputs. When either IOW or IOW is active (LOW or
HIGH, respectively) and while the UART is selected, the
CPU is allowed to write control words or data into a selected
UART register. Only one of these inputs is required to
transfer data during a write operation; the other input should
be tied to its inactive level (i.e., IOW tied LOW or IOW tied
HIGH).
Crystal connection or External clock input.
Crystal connection or the inversion of XTAL1 if XTAL1 is
driven.
not connected
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
SC16C650B
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