Contents

M93S46-W M93S56-W M93S66-W

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DocID5124 Rev 7

Contents

1

Description........................................................................................ 5

2

Signal description ............................................................................ 6

2.1

Serial data output (Q)........................................................................ 6

2.2

Serial data input (D) .......................................................................... 6

2.3

Serial clock (C).................................................................................. 6

2.4

Chip select (S)................................................................................... 6

2.5

Protection register (PRE) .................................................................. 6

2.6

Write protect (W) ............................................................................... 6

2.7

VSS ground ........................................................................................ 6

2.8

Supply voltage (VCC) ......................................................................... 6

2.8.1

Operating supply voltage VCC ............................................................. 6

2.8.2

Device reset........................................................................................ 7

2.8.3

Power-up conditions ........................................................................... 7

2.8.4

Power-down........................................................................................ 7

3

Operating features............................................................................ 8

4

Clock pulse counter ......................................................................... 9

5

Instructions ..................................................................................... 10

5.1

Read ............................................................................................... 12

5.2

Write enable and write disable ........................................................ 12

5.3

Write to memory array (WRITE)...................................................... 13

5.4

Page write ....................................................................................... 14

5.5

Write all ........................................................................................... 15

5.6

Write protection and protect register ............................................... 16

6

Power-up and delivery states ........................................................ 21

6.1

Power-up state ................................................................................ 21

6.2

Initial delivery state.......................................................................... 21

7

Maximum ratings ............................................................................ 22

8

DC and AC parameters .................................................................. 23

9

Package mechanical data .............................................................. 27

10

Part numbering ............................................................................... 30

11

Revision history.............................................................................. 31