CY14B101K

RTC Characteristics

Parameter

Description

Test Conditions

Min

Max

Unit

IBAK [26]

RTC Backup Current

 

Commercial

 

300

nA

 

 

 

Industrial

 

350

nA

 

 

 

 

 

 

 

VRTCbat [27]

RTC Battery Pin Voltage

 

 

1.8

3.3

V

VRTCcap [28]

RTC Capacitor Pin Voltage

 

 

1.2

2.7

V

tOCS

RTC Oscillator Time to Start

At Min Temperature from Power up or Enable

 

10

sec

 

 

 

 

 

 

 

 

At 25°C Temperature from Power up or Enable

 

5

sec

 

 

 

 

 

 

 

Truth Table For SRAM Operations

HSB should remain HIGH for SRAM Operations.

CE

WE

OE

Inputs and Outputs

Mode

Power

H

X

X

High Z

Deselect/Power down

Standby

L

H

L

Data Out (DQ0–DQ7);

Read

Active

L

H

H

High Z

Output Disabled

Active

L

L

X

Data in (DQ0–DQ7);

Write

Active

Notes

26.From either VRTCcap or VRTCbat.

27.Typical = 3.0V during normal operation.

28.Typical = 2.4V during normal operation.

Document Number: 001-06401 Rev. *I

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Cypress CY14B101K manual RTC Characteristics, Truth Table For Sram Operations, Inputs and Outputs Mode Power