HT32F1253 datasheet(23/35 Pages) HOLTEK

23 / 35 page

Rev. 1.00

23 of 35

May 27, 2011

32-bit ARM Cortex™-M3 MCU

HT32F1251/51B/52/53

Power Consumption

Table 6. Power Consumption Characteristics

TA = 25°C, unless otherwise specified.

Symbol

Parameter

Conditions

Min Typ Max Unit

IDD

Supply current

(Run mode)

VDD33 = VBAT = 3.3 V, HSE = 8MHz, PLL = 144 MHz,

fHCLK = 72 MHz, fPCLK = 72 MHz, All peripherals enabled

—

VDD33 = VBAT = 3.3 V, HSE = 8MHz, PLL = 144 MHz,

fHCLK = 72 MHz, fPCLK = 72 MHz, All peripherals disabled

—

Supply current

(Sleep mode)

VDD = VBAT = 3.3 V, HSE = 8MHz, PLL = 144 MHz,

fHCLK = 0 MHz, fPCLK = 72 MHz, All peripherals enabled

—

VDD33 = VBAT = 3.3 V, HSE = 8MHz, PLL = 144 MHz,

fHCLK = 0 MHz, fPCLK = 72 MHz, All peripherals disabled

—

Supply current

(Deep-Sleep1

mode)

VDD33 = VBAT = 3.3 V, All clock off (HSE/PLL/fHCLK), LDO

in low power mode, LSI on, RTC on

—

μA

Supply current

(Deep-Sleep2

mode)

VDD33 = VBAT = 3.3 V, All clock off (HSE/PLL/fHCLK), LDO

off (DMOS on), LSI on, RTC on

—

μA

Supply current

(Power-Down

mode)

VDD33 = VBAT = 3.3 V, LDO off, LSE on, LSI off, RTC on

—

4.2

—

μA

VDD33 = VBAT = 3.3 V, LDO off, LSE on, LSI off, RTC off

—

4.1

—

μA

VDD33 = VBAT = 3.3 V, LDO off, LSE off, LSI on, RTC on

—

4.3

—

μA

VDD33 = VBAT = 3.3 V, LDO off, LSE off, LSI on, RTC off

—

4.2

—

μA

IBAT

Battery supply

current (Power-

Down mode)

VDD33 not present, VBAT = 3.3 V, LDO off, LSE off, LSI

on, RTC on

—

μA

VDD33 not present, VBAT = 3.3 V, LDO off, LSE off, LSI

on, RTC off

—

3.9

—

μA

NOTES: 1. HSE is the high speed external oscillator while HSI is the 8MHz high speed internal oscillator.

2. LSE is the low speed external oscillator while LSI is the 32 KHz low speed internal oscillator.

3. RTC means real time clock.

4. Code = while (1) { NOP x n } executed in Flash (n > 200).

Reset and Supply Monitor Characteristics

Table 7. LVD/BOD Characteristics

TA = 25°C, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VBOD

Voltage of Brown Out Detector

—

2.5

—

VLVD

Voltage of Low Voltage Detector

LVDS (Note1) = ‘00’

—

2.7

—

LVDS (Note1) = ‘01’

—

2.8

—

LVDS (Note1) = ‘10’

—

2.9

—

LVDS (Note1) = ‘11’

—

3.0

—

VPOR

Voltage of Power On Reset

—

1.36

—

NOTE: LVDS field is in PWRCU LVDCSR register

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