UPD30121 datasheet(31/76 Pages) NEC

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Data Sheet U14691EJ1V0DS00

µµµµPD30121

Data Retention Characteristics (TA = 25

°°°°C)

Parameter

Symbol

Condition

MIN.

MAX.

Unit

Data retention voltage

Note 1

VDDDR3

Hibernate mode, 3.3 V power supply

2.5

3.45

Data retention input voltage, high

Note 2

VIHDR

0.9VDDDR3

Notes 1. The data retention voltage is the voltage at which the operation of the Elapsed Time timer and the data

retention of the registers of the following peripheral units are guaranteed, and is not applied to the

internal data of the CPU core.

BCU: BCURFCNTREG, BCUCNTREG3, SDRAMMODEREG, SROMMODEREG, SDRAMCNTREG

PUM: PMUCNTREG (15:8), PMUCNT2REG, PMUWAITREG, PMUDIVREG

RTC: ETIMELREG,

ETIMEMREG,

ETIMEHREG,

ECMPLREG,

ECMPMREG,

ECMPHREG,

RTCL1LREG,

RTCL1HREG,

RTCL1CNTLREG,

RTCL1CNTHREG,

RTCL2LREG,

RTCL2HREG, RTCL2CNTLREG, RTCL2CNTHREG, RTCINTREG (2:0)

GIU:

GIUPODATL, GIUPODATH, GIUUSEUPNL, GIUTERMUPNL

KIU:

KIUGPEN, PORTREG

LED: LEDHTSREG, LEDLTSREG, LEDHLTCLREG, LEDHLTCHREG, LEDCNTREG

2. Applied to RTCRST# pin.

Remark The values in parentheses are the targeted values.

UPD30121 Datasheet(PDF) 31 Page - NEC

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