sc16c650a NXP Semiconductors, sc16c650a Datasheet - Page 6

• Manufacturer Part Number: sc16c650a
• Description: Universal Asynchronous Receiver/transmitter Uart With 32-byte Fifo And Infrared Irda Encoder/decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 2:
9397 750 11622
Product data
Symbol
A0-A2
AS
BAUDOUT
Pin description
Pin
PLCC44 LQFP48 DIP40
28, 27,
26
28
17
5.2 Pin description
28, 27,
26
24
12
Fig 4. DIP40 pin configuration.
28, 27,
26
25
15
Type
I
I
O
Rev. 04 — 20 June 2003
Description
Register select. A0-A2 are used during read and write operations to
select the UART register to read from or write to. Refer to
register addresses and refer to AS description.
Address strobe. When AS is active (LOW), A0, A1, and A2 and CS0,
CS1, and CS2 drive the internal select logic directly; when AS is
HIGH, the register select and chip select signals are held at the logic
levels they were in when the LOW-to-HIGH transition of AS occurred.
Baud out. BAUDOUT is a 16 clock signal for the transmitter section
of the UART. The clock rate is established by the reference oscillator
frequency divided by a divisor specified in the baud generator divisor
latches. BAUDOUT may also be used for the receiver section by tying
this output to RCLK.
BAUDOUT
UART with 32-byte FIFO and IrDA encoder/decoder
XTAL1
XTAL2
RCLK
GND
IOW
IOW
CS0
CS1
CS2
RX
D0
D1
D2
D3
D4
D5
D6
D7
TX
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
002aaa299
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
V CC
RI
DCD
DSR
CTS
RESET
OUT1
DTR
RTS
OUT2
INT
RXRDY
A0
A1
A2
AS
TXRDY
DDIS
IOR
IOR
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
SC16C650A
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