CY14MB064J

CY14ME064J

Document #: 001- 65051 Rev. *B

Page 3 of 31

Pinouts

Figure 1. Pin Diagram – 8-pin SOIC

Figure 2. Pin Diagram – 16-pin SOIC

WP

SCL

1

2

3

4

5

A0

8

7

6

V

CC

SDA

A1

A2

V

Top View

not to scale

CY14MX064J1

SS

WP

SCL

1

2

3

4

5

8

7

6

V

CC

SDA

A1

A2

Top View

not to scale

CY14MX064J2

V

CAP

VSS

WP

V

CAP

1

2

3

4

5

6

7

8

9

10

11

12

13

NC

16

15

14

VCC

A2

SDA

SCL

A1

HSB

A0

Top View

not to scale

VSS

NC

NC

NC

NC

NC

CY14MX064J3

Pin Definitions

Pin Name

I/O Type

Description

SCL

Input

SDA

Input/Output

WP

Input

Write Protect. Protects the memory from all writes. This pin is internally pulled LOW and hence can

be left open if not connected.

A2-A0[2]

Input

be left open if not connected.

HSB

Input/Output

Hardware STORE Busy:

Output: Indicates busy status of nvSRAM when LOW. After each Hardware and Software STORE

weak internal pull-up resistor keeps this pin HIGH (External pull up resistor connection optional).

Input: Hardware STORE implemented by pulling this pin LOW externally.

Power supply

AutoStore Capacitor. Supplies power to the nvSRAM during power loss to STORE data from the

SRAM to nonvolatile elements. If not required, AutoStore must be disabled and this pin left as no

connect. It must never be connected to ground.

NC

No connect

No Connect. This pin is not connected to the die.

Power supply

Ground

Power supply

Power supply

Note

2. A0 pin is not available in CY14MX064J2.

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