SC68C198 datasheet(38/49 Pages) PHILIPS

38 / 49 page

Philips Semiconductors

Product specification

SC26C198 SC68C198

SC26L198 SC68L198

Octal UART with TTL compatibility at 3.3V

and 5V supply voltages

1995 May 1

373

Limitations:

Minimum RESETN pin pulse width is 10 SClk cycles after Vcc

reaches operational range

The user must allow a minimum of 6 SClk cycles to elapse after

a reset (RESETN pin or CRa initiated) of the device terminates

before initiating a new bus cycle.

DC ELECTRICAL SPECIFICATIONS (26C198 and 68C198)

VCC = 5.0V ±10%, 0° to 70°C

SYMBOL

PARAMETER

TEST CONDITIONS

LIMITS

UNIT

SYMBOL

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIL

Input low voltage

VSS

0.8

VIH

Input high voltage (except X1/CLK)

2.0

VCC

VIH

Input high voltage (X1/CLK)

0.8 VCC

VCC

VOL

VOH

Output low voltage (except OD outputs)

Output high voltage (except OD outputs)

IOL = 7.0mA

IOH = -400µA

IOH = -100µA

0.8VCC

0.9VCC

0.4

VOL

Open drain low voltage

IOL = 14.0mA

0.4

IIL

IIH

Input current low, I/O pins

Input current high, I/O pins

VIN = 0

VIN = VCC

-10

µA

Input leakage current

VIN = 0 to VCC

-5

µA

IIKX1

IIHX1

X1/CLK input low current

X1/CLK input high current

VIN=GND,X2=Open

VIN=VCC, X2=Open

-100

+100

µA

IOZH

IOZL

Output off current high, 3-state data bus

Output off current low, 3-state data bus

VIN = VCC

VIN = 0

-10

µA

IODL

IODH

Open-drain output low current in off state

Open drain output high current in off state

VIN = VCC

-10

µA

ICC

Power supply current

Operating mode

Power down mode (no clocks operating)

TTL Input levels

CMOS input levels

200

µA

SC68C198 Datasheet(PDF) 38 Page - NXP Semiconductors

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