STM32L152RD STMicroelectronics, STM32L152RD Datasheet - Page 112

• Manufacturer Part Number: STM32L152RD
• Description: Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
• Manufacturer: STMicroelectronics

Specifications of STM32L152RD

• Operating Power Supply Range: 1.65 V to 3.6 V (without BOR) or 1.8 V to 3.6 V
• 7 Modes: Sleep, Low-power run (11 μA at 32 kHz) , Low-power sleep (4.4 μA), Stop with RTC, Stop (650 nA), Standby with RTC, Standby (300 nA)
• Ultralow Leakage Per I/o: 50 nA max
• Fast Wakeup Time From Stop: 8 μs
• Core: ARM 32-bit Cortex™-M3 CPU
• Dma: 12-channel DMA controller
• 11 Timers: one 32-bit and six 16-bit general-purpose timers, two 16-bit basic timers, two watchdog timers (independent and window)

Electrical characteristics
6.3.22
112/121
LCD controller (STM32L152xD only)
The STM32L152xD embeds a built-in step-up converter to provide a constant LCD
reference voltage independently from the V
connected to the V
Table 67.
1. LCD enabled with 3 V internal step-up active, 1/8 duty, 1/4 bias, division ratio= 64, all pixels active, no LCD
2. Guaranteed by design, not tested in production.
3. Based on characterization, not tested in production.
Symbol
R
ΔVxx
I
connected
V
V
V
V
V
V
V
V
LCD
V
R
C
Htot
V
V
V
V
V
V
LCD0
LCD1
LCD2
LCD3
LCD4
LCD5
LCD6
LCD7
V
LCD
L
ext
44
34
23
12
13
14
(2)
0
(1)
(2)
(3)
LCD controller characteristics
LCD external voltage
LCD internal reference voltage 0
LCD internal reference voltage 1
LCD internal reference voltage 2
LCD internal reference voltage 3
LCD internal reference voltage 4
LCD internal reference voltage 5
LCD internal reference voltage 6
LCD internal reference voltage 7
V
Supply current at V
Supply current at V
Low drive resistive network overall value
High drive resistive network total value
Segment/Common highest level voltage
Segment/Common 3/4 level voltage
Segment/Common 2/3 level voltage
Segment/Common 1/2 level voltage
Segment/Common 1/3 level voltage
Segment/Common 1/4 level voltage
Segment/Common lowest level voltage
Segment/Common level voltage error
T
A
LCD
= -40 to 85 ° C
external capacitance
LCD
pin to decouple this converter.
Parameter
Doc ID 022027 Rev 2
DD
DD
= 2.2 V
= 3.0 V
DD
voltage. An external capacitor C
0
5.28
Min
192
0.1
STM32L151xD, STM32L152xD
3/4 V
2/3 V
1/2 V
1/3 V
1/4 V
2.73
2.86
2.98
3.12
3.26
3.55
Typ
240
2.6
3.4
3.3
3.1
6.6
LCD
LCD
LCD
LCD
LCD
V
Max
7.92
± 50
288
3.6
LCD
2
ext
must be
Unit
MΩ
mV
µF
µA
kΩ
V
V
V