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
V
DD33 = VBAT = 3.3 V, HSE = 8MHz, PLL = 144 MHz,
—
—
—
—
47
28
30
7
—
—
—
—
mA
mA
mA
mA
fHCLK = 72 MHz, fPCLK = 72 MHz, All peripherals enabled
Supply current
(Run mode)
VDD33 = VBAT = 3.3 V, HSE = 8MHz, PLL = 144 MHz,
fHCLK = 72 MHz, fPCLK = 72 MHz, All peripherals disabled
VDD = VBAT = 3.3 V, HSE = 8MHz, PLL = 144 MHz,
fHCLK = 0 MHz, fPCLK = 72 MHz, All peripherals enabled
Supply current
(Sleep mode)
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
IDD
—
—
66
11
—
—
μA
μA
,
in low power mode LSI on, RTC on
Supply current
(Deep-Sleep2
mode)
VDD33 = VBAT = 3.3 V, All clock off (HSE/PLL/fHCLK), LDO
,
off (DMOS on) LSI on, RTC on
VDD33 = VBAT = 3.3 V, LDO off, LSE on, LSI off, RTC on
VDD33 = VBAT = 3.3 V, LDO off, LSE on, LSI off, RTC off
VDD33 = VBAT = 3.3 V, LDO off, LSE off, LSI on, RTC on
VDD33 = VBAT = 3.3 V, LDO off, LSE off, LSI on, RTC off
—
—
—
—
4.2
4.1
4.3
4.2
—
—
—
—
μA
μA
μA
μA
Supply current
(Power-Down
mode)
V
DD33 not present, VBAT = 3.3 V, LDO off, LSE off, LSI
—
—
4
—
—
μA
μA
Battery supply
current (Power-
Down mode)
on, RTC on
IBAT
VDD33 not present, VBAT = 3.3 V, LDO off, LSE off, LSI
on, RTC off
3.9
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
2.5
Max
—
Unit
V
VBOD
Voltage of Brown Out Detector
—
LVDS (Note1) = ‘00’
LVDS (Note1) = ‘01’
LVDS (Note1) = ‘10’
LVDS (Note1) = ‘11’
—
—
2.7
—
V
—
2.8
—
V
VLVD
Voltage of Low Voltage Detector
Voltage of Power On Reset
—
2.9
—
V
—
3.0
—
V
VPOR
—
1.36
—
V
NOTE: LVDS field is in PWRCU LVDCSR register
Rev. 1.00
23 of 35
May 27, 2011
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
