AM79C971VCW datasheet(203/265 Pages) AMD

203 / 265 page

Am79C971

203

3. VOH does not apply to open-drain output pins.

4. OH1 applies to all other outputs.

IOH2 applies to TXD[3:0], TX_EN,TX_ER,MDC, and MDIO

Outputs are CMOS and will be driven to rail if the load is not resistive.

5. IL and IIH apply to all input pins except XTAL1.

6. OZL and IOZH apply to all three-state output pins and bidirectional pins.

7. Parameter not tested. Value determined by characterization.

8. Tested, but to values in excess of limits. Test accuracy not sufficient to allow screening guard bands.

9. Correlated to other tested parameters - not tested directly.

10. Test not implemented to data sheet specification.

11. CIN = 8 pF for the IDSEL input and all input pins on the MII interface (TX_CLK, COL, CRS, RX_CLK, RXD[3:0], RX_DV,

RX_ER).

12. The power supply current in Magic Packet mode is linear with respect to the PCI Clock frequency operation, assuming the

network port remains constant. For example, at CLK = 20 MHz, the maximum Magic Packet power supply current would be

87 mA.

SWITCHING CHARACTERISTICS: BUS INTERFACE

Parameter

Symbol

Parameter Name

Test Condition

Min

Max

Unit

Clock Timing - PCI Bus Interface

FCLK

CLK Frequency

MHz

tCYC

CLK Period

@ 1.5 V for VDDB = 5 V

@ 0.4 VDD_PCI V for VDD_PCI = 3.3 V

tHIGH

CLK High Time

@ 2.0 V for VDDB = 5 V

@ 0.475 VDD_PCI V for VDD_PCI = 3.3

tLOW

CLK Low Time

@ 0.8 V for VDDB = 5 V

@ 0.325 VDD_PCI V for VDD_PCI = 3.3

tFALL

CLK Fall Time

over 2 V p-p for VDDB = 5 V

over 0.4 VDD_PCI p-p for VDD_PCI =

3.3 V

(Note 1)

V/ns

tRISE

CLK Rise Time

over 2 V p-p for VDDB = 5 V

over 0.4 VDD_PCI p-p for VDD_PCI =

3.3 V

(Note 1)

V/ns

Output and Float Delay Timing - PCI Bus Interface

tVAL

AD[31:00], C/BE[3:0], PAR, FRAME,

IRDY, TRDY, STOP, DEVSEL,

PERR, SERR

Valid Delay

tVAL (REQ)

REQ Valid Delay

tON

AD[31:00], C/BE[3:0], PAR, FRAME,

IRDY, TRDY, STOP, DEVSEL Active

Delay

tOFF

AD[31:00], C/BE[3:0], PAR, FRAME,

IRDY, TRDY, STOP, DEVSEL Float

Delay

AM79C971VCW датащи(PDF) 203 Page - Advanced Micro Devices

AM79C971VCW датащи(HTML) 203 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