SC16C2550 datasheet(29/46 Pages) PHILIPS

Part #	SC16C2550

Description	Dual UART with 16 bytes of transmit and receive FIFOs and infrared (IrDA) encoder/decoder

PDF	46 Pages

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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29 / 46 page

Philips Semiconductors

SC16C2550

Dual UART with 16 bytes of transmit and receive FIFOs and IrDA

encoder/decoder

Product data

Rev. 03 — 19 June 2003

29 of 46

9397 750 11621

7.11 SC16C2550 external reset condition

8.

Limiting values

Table 22:

Reset state for registers

Register

Reset state

IER

IER[7-0] = 0

FCR

FCR[7-0] = 0

ISR

ISR[7-1] = 0; ISR[0] = 1

LCR

LCR[7-0] = 0

MCR

MCR[7-0] = 0

LSR

LSR[7] = 0; LSR[6-5] = 1; LSR[4-0] = 0

MSR

MSR[7-4] = input signals; MSR[3-0] = 0

SPR

SFR[7-0] = 1

DLL

DLL[7-0] = X

DLM

DLM[7-0] = X

Table 23:

Reset state for outputs

Output

Reset state

TXA, TXB

Logic 1

OP2A, OP2B

Logic 1

RTSA, RTSB

Logic 1

DTRA, DTRB

Logic 1

INTA, INTB

3-State condition

Table 24:

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

VCC

supply voltage

-

7

V

Vn

voltage at any pin

GND

− 0.3

VCC + 0.3

V

Tamb

operating temperature

−40

+85

°C

Tstg

storage temperature

−65

+150

°C

Ptot(pack)

total power dissipation

per package

-

500

mW

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