5962-9054301MQA Ver la hoja de datos (PDF) - Harris Semiconductor

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5962-9054301MQA

CMOS High Performance Programmable DMA Controller

Harris Semiconductor 

82C37A

Timing Waveforms (Continued)

S2

S4

S2

CLK

A0-A7

READ

WRITE

(10)

TASM

(15)

TDCL

VALID

TDCTR

(16)

TRLRHC

(40)

TDCTW

(17)

(10)

TASM

TDCL

(15)

READY

TRS (32)

TRH (31)

TRS (32)

FIGURE 13. COMPRESSED TRANSFER

S4

VALID

TDCTR

(16)

TDCTW

(17)

TRH (31)

VCC

RESET

IOR OR IOW

(48) TRSTD

(50) TRSTW

(49) TRSTS

FIGURE 14. RESET

AC Test Circuits

OUTPUT FROM

DEVICE UNDER

TEST

V1

R1

TEST POINT

C1 (NOTE)

NOTE: Includes STRAY and FIXTURE Capacitance

TEST CONDITION DEFINITION TABLE

PINS

All Outputs Except EOP

EOP

V1

1.7V

VCC

R1

520Ω

1.6kΩ

C1

100pF

50pF

AC Testing Input, Output Waveforms

VIH + 0.4V

INPUT

1.5V

VIL - 0.4V

1.5V

VOH

VOL

OUTPUT

Z → L OR H

OUTPUT

2.0V

0.8V

VOH

VOL

VOH

L OR H → Z

VO -0.45

0.45

OUTPUT

VOL

NOTE: AC Testing: All AC Parameters tested as per test circuits.

Input RISE and FALL times are driven at Ins/V. CLK input

must switch between VIHC +0.4V and VILC -0.4V

4-212

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