CY8C20121 datasheet(29/43 Pages) CYPRESS

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CY8C20111, CY8C20121

Document Number: 001-53516 Rev. *G

Page 29 of 43

13.2 DC GPIO Specifications

13.4 DC Flash Write Specifications

This table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to 5.25 V and –40

°C < TA < 85 °C, 3.10 V to 3.6 V and –40 °C < TA < 85 °C or 2.4 V to 2.90 V and –40 °C < TA < 85 °C, respectively. Typical parameters

apply to 5 V, 3.3 V, or 2.7 V at 25 °C. These are for design guidance only. Flash Endurance and Retention specifications are valid only

within the range: 25 °C±20 °C during the flash write operation. It is at the user’s own risk to operate out of this temperature range. If

flash writing is done out of this temperature range, the endurance and data retention reduces.

13.2.1 5-V and 3.3-V DC GPIO Specifications

This table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to 5.25 V and

–40 °C

≤ T

A ≤ 85 °C, 3.10 V to 3.6 V –40 °C ≤ TA ≤ 85 °C. Typical parameters apply to 5 V and 3.3 V at 25 °C and are for design

guidance only.

Parameter

Description

Min

Typ

Max

Unit

Notes

VOH1

High output voltage

VDD – 0.2

–

IOH ≤ 10 µA/pin, VDD ≥ 3.10 V

VOH2

High output voltage

VDD – 0.9

–

IOH = 1 mA/pin, VDD ≥ 3.10 V

VOL

Low output voltage

–

0.75

IOL = 20 mA/pin, VDD > 3.10 V, maximum of 40

mA sink current

IOH

High output current

0.01

–

VDD ≥ 3.1 V

IOL1

Low output current on Port 0 pins

–

VDD ≥ 3.1 V, maximum of 40 mA sink current

COUT

Capacitive load on pins as output

0.5

1.7

Package and pin dependent.

Temp = 25 °C.

13.2.2 2.7-V DC GPIO Specifications

This table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 2.4 V to 2.90 V and

–40 °C < TA < 85 °C, respectively. Typical parameters apply to 2.7 V at 25 °C and are for design guidance only.

Parameter

Description

Min

Typ

Max

Unit

Notes

VOH1

High output voltage

VDD – 0.2

–

IOH ≤ 10 µA/pin

VOH2

High output voltage

VDD – 0.5

–

IOH = 0.2 mA/pin

VOL

Low output voltage

–

0.75

IOL = 10 mA/pin, maximum of 20 mA sink

current

IOH

High output current

0.01

–

0.2

VDD ≤ 2.9 V

IOL1

Low output current on Port 0 pins

–

VDD ≤ 2.9 V, maximum of 20 mA sink current

COUT

Capacitive load on pins as output

0.5

1.7

Package and pin dependent.

Temp = 25 °C.

13.3 DC POR and LVD Specifications

Parameter

Description

Min

Typ

Max

Unit

Notes

VPPOR0

VPPOR1

VDD Value for PPOR Trip

VDD= 2.7 V

VDD= 3.3 V, 5 V

–

2.36

2.60

2.40

2.65

VDD must be greater than or equal to 2.5 V

during startup or reset from watchdog.

Symbol

Description

Min

Typ

Max

Units

Notes

VDDIWRITE

Supply Voltage for Flash Write Operations[7]

2.7

–

IDDP

Supply Current for Flash Write Operations

–

FlashENPB

Flash Endurance

50,000

–

Erase/write cycles

FlashDR

Flash Data Retention

–

Years

Note

7. Commands involving flash writes (0x01, 0x02, 0x03) and flash read (0x04) must be executed only within the same VCC voltage range detected at POR (power on, or

command 0x06) and above 2.7 V.

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