AM79C970A datasheet(177/219 Pages) AMD

177 / 219 page

P R E L I M I N A R Y

AMD

177

Am79C970A

SWITCHING CHARACTERISTICS: Bus Interface

Parameter

Symbol

Parameter Description

Test Conditions

Min

Max

Unit

Clock Timing

FCLK

CLK Frequency

MHz

tCYC

CLK Period

@ 1.5 V for VDDB = 5 V

∞

@ 0.4 VDDB for VDDB = 3.3 V

tHIGH

CLK High Time

@ 2.0 V for VDDB = 5 V

@ 0.475 VDDB for VDDB = 3.3 V

tLOW

CLK Low Time

@ 0.8 V for VDDB = 5 V

@ 0.325 VDDB for VDDB = 3.3 V

tFALL

CLK Fall Time

Over 2 V p-p for VDDB = 5 V

V/ns

Over 0.4 VDDB p–p for

VDDB = 3.3 V (Note 1)

tRISE

CLK Rise Time

Over 2 V p-p for VDDB = 5 V

V/ns

Over 0.4 VDDB p–p for

VDDB = 3.3 V (Note 1)

Output and Float Delay Timing

tVAL

AD[31:00], C/

BE[3:0], PAR,

@ 1.5 V for VDDB = 5 V

FRAME, IRDY, TRDY, STOP,

@ 0.4 VDDB for VDDB = 3.3 V

DEVSEL, PERR, SERR

Valid Delay

tVAL (REQ)

REQ Valid Delay

@ 1.5 V for VDDB = 5 V

@ 0.4 VDDB for VDDB = 3.3 V

tON

AD[31:00], C/

BE[3:0], PAR, FRAME,

@ 1.5 V for VDDB = 5 V

IRDY, TRDY, STOP, DEVSEL

@ 0.4 VDDB for VDDB = 3.3 V

Active Delay

tOFF

AD[31:00], C/

BE[3:0], PAR, FRAME,

@ 1.5 V for VDDB = 5 V

IRDY, TRDY, STOP, DEVSEL

@ 0.4 VDDB for VDDB = 3.3 V

Float Delay

Setup and Hold Timing

tSU

AD[31:00], C/

BE[3:0], PAR, FRAME,

@ 1.5 V for VDDB = 5 V

IRDY, TRDY, STOP, LOCK, DEVSEL,

@ 0.4 VDDB for VDDB = 3.3 V

IDSEL

Setup Time

AD[31:00], C/

BE[3:0], PAR, FRAME,

@ 1.5 V for VDDB = 5 V

IRDY, TRDY, STOP, LOCK, DEVSEL,

@ 0.4 VDDB for VDDB = 3.3 V

IDSEL

Hold Time

tSU (GNT)

GNT Setup Time

@ 1.5 V for VDDB = 5 V

@ 0.4 VDDB for VDDB = 3.3 V

tH (GNT)

GNT Hold Time

@ 1.5 V for VDDB = 5 V

@ 0.4 VDDB for VDDB = 3.3 V

AM79C970A датащи(PDF) 177 Page - Advanced Micro Devices

AM79C970A датащи(HTML) 177 Page - Advanced Micro Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL