CY14B104K(2009) Ver la hoja de datos (PDF) - Cypress Semiconductor

Número de pieza

componentes Descripción

Fabricante

CY14B104K
(Rev.:2009)

4 Mbit (512K x 8/256K x 16) nvSRAM with Real Time Clock

Cypress Semiconductor 

CY14B104K, CY14B104M

RTC Characteristics

Parameters

VRTCbat

IBAK[14]

Description

RTC Battery Pin Voltage

RTC Backup Current

VRTCcap[15]

RTC Capacitor Pin Voltage

tOCS

RBKCHG

RTC Oscillator Time to Start

RTC Backup Capacitor Charge Current-Limiting

Resistor

Min

1.8

TA (Min)

25°C

TA (Max)

TA (Min) 1.6

25°C

1.5

TA (Max) 1.4

450

Typ[11]

Max

3.0

3.3

350

350

500

3.0

3.6

3.0

3.6

3.0

3.6

1

2

850

Units

V

nA

nA

nA

V

V

V

sec

Ω

Notes

14. From either VRTCcap or VRTCbat.

15. If VRTCcap > 0.3V or if no capacitor is connected to VRTCcap pin, the oscillator starts in tOCS time. If a backup capacitor is connected and vrtccap < 0.3V, the capacitor

must be allowed to charge to 0.3V for oscillator to start.

Document #: 001-07103 Rev. *M

Page 17 of 33

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