CY14B101Q1

 

 

 

 

 

PRELIMINARY

CY14B101Q2

 

 

CY14B101Q3

 

 

 

 

 

 

 

 

 

 

Pinouts

Figure 1. Pin Diagram - 8-Pin DFN[1, 2, 3]

CS

CY14B101Q1

VCC

CS

CY14B101Q2

VCC

SO

Top View

HOLD

SO

Top View

HOLD

WP

SCK

VCAP

SCK

not to scale

not to scale

GND

SI

GND

SI

 

 

Figure 2. Pin Diagram - 16-Pin SOIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC

1

 

16

VCC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC

2

 

15

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC

3

CY14B101Q3

14

VCAP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC

4

13

SO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Top View

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

SI

 

 

 

 

 

 

 

 

 

 

 

 

WP

not to scale

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

11

SCK

 

 

 

 

 

 

 

 

 

 

 

 

HOLD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC

7

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

8

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HSB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 1. Pin Definitions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

I/O Type

 

 

 

 

 

 

 

 

 

 

Description

 

 

 

 

 

 

 

 

 

Input

 

Chip Select. Activates the device when pulled LOW. Driving this pin high puts the device in low

 

 

 

 

CS

 

 

 

 

 

 

 

 

 

 

 

power standby mode.

 

 

 

 

 

 

 

 

SCK

Input

 

Serial Clock. Runs at speeds up to max 40 MHz. All inputs are latched at the rising edge of this

 

 

 

 

 

 

 

 

 

 

 

clock. Outputs are driven at the falling edge of the clock.

 

 

 

 

SI

Input

 

Serial Input. Pin for input of all SPI instructions and data.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SO

Output

 

Serial Output. Pin for output of data through SPI.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input

 

Write Protect. Implements hardware write protection in SPI.

 

 

 

WP

 

HOLD

 

Input

 

HOLD

Pin. Suspends Serial Operation.

 

 

 

 

 

 

 

 

 

 

 

 

Input/Output

 

Hardware STORE Busy: A weak internal pull up keeps this pin pulled high. If not used, this pin is

 

 

HSB

 

 

 

 

 

 

 

 

 

 

 

 

left as No Connect.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output: Indicates busy status of nvSRAM when LOW.

 

 

 

 

 

 

 

 

 

 

 

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

 

VCAP

Power Supply

 

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

 

 

 

 

 

 

 

 

 

 

 

SRAM to nonvolatile elements. If AutoStore is not needed, this pin must be left as No Connect. It

 

 

 

 

 

 

 

 

 

 

 

must never be connected to GND.

 

 

 

 

 

 

 

 

NC

No Connect

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

Power Supply

Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC

Power Supply

 

Power Supply (2.7 to 3.6V)

 

 

 

 

 

Notes

1.HSB pin is not available in 8 DFN packages.

2.CY14B101Q1A part does not have WP pin.

3.CY14B101Q2A part does not have VCAP pin and does not support AutoStore.

Document #: 001-50091 Rev. *A

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Cypress CY14B101Q2, CY14B101Q3, CY14B101Q1 manual Pinouts, Pin Definitions Pin Name Type Description, Hold