CS5535 datasheet(544/555 Pages) NSC

544 / 555 page

www.national.com

544

Revision 0.8

Electrical Specifications (Continued)

6.3.9

Low Pin Count (LPC) Signals

The signals detailed in this sub-section use a “PCI” buffer

type except for LCP_CLK. LPC_CLK uses a “Q7” buffer.

For a detailed explanation of buffer types, see Table 2-4

"Buffer Type Characteristics" on page 28.

In this subsection, unless otherwise noted:

• All timing specifications are specified under the oper-

ating conditions listed in Table 6-3 on page 526 (i.e.,

VCORE and VCORE_VSB = All; VIO and VIO_VSB = All;

TCASE = All).

• Signals are referenced to LPC_CLK low-to-high edge.

• Signal parameters are defined in Figure 6-2 "AC Refer-

ence Timing and Test Definition" on page 530.

Table 6-17. LPC Timing Parameters

Signal

Parameter

Min

Max

Units

Comment/Condition

LPC_FRAME#,

LPC_AD[3:0],

LPC_DRQ#,

LPC_SERIRQ

tVAL when signal is an output

Note 1 and Note 2.

tFLOAT when signal is an output

Note 2 and Note 3.

tENABLE when signal is an output

Note 2 and Note 4.

tSETUP when signal is an input

Note 2.

tHOLD when signal is an input

Note 2.

Note 1. tVAL min times with load of: 10 pF cap to ground.

tVAL max times with load of: 50 pF cap to ground.

Note 2. All information in this table applies when the following control bits are high in Table 2-6 "DIVIL_BALL_OPT" on page

29: PIN_OPT_LDRQ, PIN_OPT_LIRQ, and PIN_OPT_LALL.

Note 3. tFLOAT with the load of: 10 pF cap to ground.

Note 4. tENABLE with the load of: 10 pF cap to ground.

CS5535 Datasheet(PDF) 544 Page - National Semiconductor (TI)

CS5535 Datasheet(HTML) 544 Page - National Semiconductor (TI)

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

Datasheet Download

Link URL