SC16C750B Philips Semiconductors, SC16C750B Datasheet - Page 8

• Manufacturer Part Number: SC16C750B
• Description: 5 V/ 3.3 V and 2.5 V UART with 64-byte FIFOs
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 2:
[1]
9397 750 14453
Product data
Symbol
TX
TXRDY
V
GND
IOW
IOW
XTAL1
XTAL2
CC
In sleep mode, XTAL2 is left floating.
[1]
Pin description
Pin
PLCC44 LQFP64
13
27
44
22
21
20
18
19
58
13
40
8
6
4
1
2
…continued
HVQFN32
6
15
27
13
-
11
9
10
Type
O
O
Power 2.5 V, 3 V or 5 V supply voltage.
Power Ground voltage.
I
I
I
O
Rev. 03 — 13 December 2004
Description
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.
5 V, 3.3 V and 2.5 V UART with 64-byte FIFOs
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
SC16C750B
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