CS8413 CS8414

4

DS240F1

DIGITAL CHARACTERISTICS - RS422 RECEIVERS

(RXP, RXN pins only; VD+, VA+ = 5V ± 5%)

5. When the receiver inputs are configured for single ended operation (e.g. consumer configuration) the

signal amplitude must exceed 400 mVp-p for the differential voltage on RXP to RXN to exceed 200 mV.

This represents twice the minimum signal level of 200 mVp-p specified in CP340/1201 and IEC-958

(which are not RS-422 compliant).

SWITCHING CHARACTERISTICS - CS8413 PARALLEL PORT

Parameters

Symbol

Min

Typ

Max

Units

Input Resistance

(Note 4)

-10

-

k

Ω

Differential Input Voltage,

(Notes 4 and 5)

RXP to RXN

200

-

-

mV

Input Hysteresis

-50

-

mV

Parameters

Symbol

Min

Typ

Max

Units

ADDRESS valid to CS low

13.5

-

-

ns

CS high to ADDRESS invalid

0-

-

ns

RD/WR valid to CS low

10

-

-

ns

CS low to RD/WR invalid

35

-

-

ns

CS low

35

-

-

ns

DATA valid to CS rising

RD/WR low (writing)

32

-

-

ns

CS high to DATA invalid

RD/WR low (writing)

0-

-

ns

CS falling to DATA valid

RD/WR high (reading)

--

35

ns

CS rising to DATA Hi-Z

RD/WR high (reading)

5-

-

ns

A4 - A0

D7 - D0

RD/WR

Writing

Reading

adcss

t

csddr

t

csl

t

dcssw

t

csdhw

t

csdhr

t

csadh

t

CS

D7 - D0

RD/WR

csrwi

t

rwcss

t

CS8413 Parallel Port timing