Production Data

WM2148

WOLFSON MICROELECTRONICS LTD

PD Rev 1.1 February 2001

7

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Read Timing

Address and Chip select Setup

Time

4

ns

Output Enable

15

ns

Output Disable

10

ns

Address Hold Time

1

ns

Chip select Hold Time

0

ns

Note:

1.

All timing parameters refer to a 50% level.

WEB

CSB

X

D[0:13]

A[0:1]

X

DATA

XX

ADDRESS

t

su(WE-CS)

t

h(CS)

t

su(DA)

t

h(CS)

Figure 3 Write Timing

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Write Timing

Chip Select Setup Time

4

ns

Data and Address Setup Time

29

ns

Data and Address Hold Time

0

ns

Chip Select Hold Time

0

ns

Write Pulse Duration HIGH

15

ns

Note

1.

Data is written to the addressed register at the rising edge of WEB. All timing parameters refer to a 50% level.