Document Number: 001-97964 Rev. *E

Page 2 of 29

S27KL0641, S27KS0641

ADVANCE

Contents

1.

General Description..................................................... 3

2.

HyperRAM Product Overview ..................................... 4

3.

HyperBus Interface ...................................................... 5

3.1 Command-Address Bit Assignments ............................. 5

3.2 Read Transactions......................................................... 6

3.3 Write to Memory Space Transactions............................ 6

4.

Memory Space.............................................................. 7

5.

Register Space ............................................................. 7

5.1 Device Identification Registers....................................... 7

5.2 Register Space Access.................................................. 8

HyperRAM Hardware Interface

6.

Interface States .......................................................... 15

6.1 Power Conservation Modes......................................... 15

7.

Electrical Specifications............................................ 17

7.1 Absolute Maximum Ratings .......................................... 17

7.2 Latchup Characteristics ................................................ 18

7.3 Operating Ranges......................................................... 18

7.4 DC Characteristics........................................................ 18

7.5 Power-Up Initialization .................................................. 20

7.6 Power Down ................................................................. 21

7.7 Hardware Reset............................................................ 22

8.

Timing Specifications................................................. 23

8.1 AC Characteristics ........................................................ 23

9.

Physical Interface ....................................................... 25

10. Ordering Information.................................................. 25

10.1 Ordering Part Number................................................... 25

10.2 Valid Combinations....................................................... 26

11. Errata............................................................................ 27

12. Revision History.......................................................... 28