SC16C654DBIB64,151 Datasheet SC16C654BIA68,518, SC16C654DBIB64,151, SC16C654BIBM,151 | P1-P3

1. General description

The SC16C654B/654DB is a Quad Universal Asynchronous Receiver and Transmitter

(QUART) used for serial data communications. Its principal function is to convert parallel

data into serial data and vice versa. The UART can handle serial data rates up to 5 Mbit/s.

It comes with an Intel or Motorola interface.

The SC16C654B/654DB is pin compatible with the ST16C654 and TL16C754 and it will

power-up to be functionally equivalent to the 16C454. Programming of control registers

enables the added features of the SC16C654B/654DB. Some of these added features are

the 64-byte receive and transmit FIFOs, automatic hardware or software ﬂow control and

infrared encoding/decoding. The selectable auto-ﬂow control feature signiﬁcantly reduces

software overload and increases system efﬁciency while in FIFO mode by automatically

controlling serial data ﬂow using RTS output and CTS input signals. The

SC16C654B/654DB also provides DMA mode data transfers through FIFO trigger levels

and the TXRDY and RXRDY signals. (TXRDY and RXRDY signals are not available in the

HVQFN48 package.) On-board status registers provide the user with error indications,

operational status, and modem interface control. System interrupts may be tailored to

meet user requirements. An internal loop-back capability allows on-board diagnostics.

The SC16C654B/654DB operates at 5 V, 3.3 V and 2.5 V, and the industrial temperature

range, and is available in plastic PLCC68, LQFP64, HVQFN48 and LFBGA64 packages.

On the HVQFN48 package, only channel C has all the modem pins. Channel A and

channel B have only RTS and CTS pins, and channel D does not have any modem pin.

2. Features

■ 4 channel UART

■ 5 V, 3.3 V and 2.5 V operation

■ Industrial temperature range (−40 °C to +85 °C)

■ SC16C654B is pin and software compatible with the industry-standard

ST16C454/554, ST16C654, ST68C454/554, TL16C554

■ SC16C654DB is pin and software compatible with ST16C654D, and software

compatible with ST16C454/554, ST68C454/554, TL16C554

■ Up to 5 Mbit/s data rate at 5 V and 3.3 V and 3 Mbit/s at 2.5 V

■ 5 V tolerant inputs

■ 64-byte transmit FIFO

■ 64-byte receive FIFO with error ﬂags

■ Automatic software (Xon/Xoff)/hardware (RTS/CTS) ﬂow control

■ Programmable Xon/Xoff characters

SC16C654B/654DB

5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.), with 64-byte

FIFOs and infrared (IrDA) encoder/decoder

Rev. 02 — 20 June 2005 Product data sheet

Product data sheet Rev. 02 — 20 June 2005 2 of 58

Philips Semiconductors

SC16C654B/654DB

5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs

■ Software selectable baud rate generator

■ Four selectable Receive and Transmit FIFO interrupt trigger levels

■ Standard modem interface or infrared (IrDA) encoder/decoder interface

■ Sleep mode

■ Standard asynchronous error and framing bits (Start, Stop, and Parity Overrun Break)

■ Transmit, Receive, Line Status, and Data Set interrupts independently controlled

■ Fully programmable character formatting:

◆ 5, 6, 7, or 8-bit characters

◆ Even, Odd, or No Parity formats

◆ 1, 1

⁄

, or 2-stop bit

◆ Baud generation (DC to 5 Mbit/s)

■ False start-bit detection

■ Complete status reporting capabilities

■ 3-state output TTL drive capabilities for bi-directional data bus and control bus

■ Line break generation and detection

■ Internal diagnostic capabilities:

◆ Loop-back controls for communications link fault isolation

■ Prioritized interrupt system controls

■ Modem control functions (CTS, RTS, DSR, DTR, RI, CD).

3. Ordering information

Table 1: Ordering information

Type number Package

Name Description Version

SC16C654BIA68 PLCC68 plastic leaded chip carrier; 68 leads SOT188-2

SC16C654BIB64 LQFP64 plastic low proﬁle quad ﬂat package; 64 leads; body 10 × 10 × 1.4 mm SOT314-2

SC16C654BIBM LQFP64 plastic low proﬁle quad ﬂat package; 64 leads; body 7 × 7 × 1.4 mm SOT414-1

SC16C654BIBS HVQFN48 plastic thermal enhanced very thin quad ﬂat package; no leads;

48 terminals; body 6 × 6 × 0.85 mm

SOT778-3

SC16C654BIEC LFBGA64 plastic low proﬁle ﬁne-pitch ball grid array package; 64 balls;

body 6 × 6 × 1.05 mm

SOT686-1

SC16C654DBIB64 LQFP64 plastic low proﬁle quad ﬂat package; 64 leads; body 10 × 10 × 1.4 mm SOT314-2

Product data sheet Rev. 02 — 20 June 2005 3 of 58

Philips Semiconductors

SC16C654B/654DB

5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs

4. Block diagram

Fig 1. Block diagram of SC16C654B/654DB (16 mode)

DTRA to DTRD

RTSA to RTSD

TRANSMIT

FIFO

REGISTERS

TXA to TXD

RECEIVE

SHIFT

RECEIVE

FIFO

REGISTERS

RXA to RXD

INTERCONNECT BUS LINES

AND

CONTROL SIGNALS

SC16C654B/654DB

TRANSMIT

SHIFT

XTAL2XTAL1

002aaa871

INTSEL

FLOW

CONTROL

LOGIC

CLKSEL

16/68

DATA BUS

AND

CONTROL

LOGIC

SELECT

LOGIC

INTERRUPT

CONTROL

LOGIC

D0 to D7

IOR

IOW

RESET

A0 to A2

CSA to CSD

INTA to INTD

TXRDY

RXRDY

CLOCK AND

BAUD RATE

GENERATOR

MODEM

CONTROL

LOGIC

CTSA to CTSD

RIA to RID

CDA to CDD

DSRA to DSRD

FLOW

CONTROL

LOGIC

DECODER

ENCODER

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39 P40-P42 P43-P45 P46-P48 P49-P51 P52-P54 P55-P57 P58-P58

SC16C654DBIB64,151

Mfr. #:

Buy SC16C654DBIB64,151

Manufacturer:

NXP Semiconductors

Description:

UART Interface IC 4CH. UART 64B FIFO

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

SC16C654DBIB64,151

SC16C654DBIB64,151

Products related to this Datasheet