Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LQFP 48 (7x7) 8-Bit 16 MHz I/O number 41

June 2012 Doc ID 022924 Rev 2 1/52

STM8L052C6

Value Line, 8-bit ultralow power MCU, 32-KB Flash,

256-bytes data EEPROM, RTC, LCD, timers,USART, I2C, SPI, ADC

Data brief target specification

Features

■ Operating conditions

– Operating power supply: 1.8 V to 3.6 V

– Temperature range: -40 °C to 85 °C

■ Low power features

– 5 low power modes: Wait, Low power run

(5.1 µA), Low power wait (3 µA), Active-halt

with full RTC (1.3 µA), Halt (350 nA)

– Consumption: 195 µA/MHz + 440 µA

– Ultra-low leakage per I/0: 50 nA

– Fast wakeup from Halt: 4.7 µs

■ Advanced STM8 core

– Harvard architecture and 3-stage pipeline

– Max freq. 16 MHz, 16 CISC MIPS peak

– Up to 40 external interrupt sources

■ Reset and supply management

– Low power, ultra-safe BOR reset with 5

selectable thresholds

– Ultra low power POR/PDR

– Programmable voltage detector (PVD)

■ Clock management

– 32 kHz and 1 to 16 MHz crystal oscillator

– Internal 16 MHz factory-trimmed RC

– Internal 38 kHz low consumption RC

– Clock security system

■ Low power RTC

– BCD calendar with alarm interrupt

– Auto-wakeup from Halt w/ periodic interrupt

■ LCD: up to 4x28 segments w/ step-up

converter

■ Memories

– 32 KB Flash program memory and

256 bytes data EEPROM with ECC, RWW

– Flexible write and read protection modes

– 2 Kbytes of RAM

■ DMA

– 4 channels supporting ADC, SPI, I2C,

USART, timers

– 1 channel for memory-to-memory

■ 12-bit ADC up to 1 Msps/25 channels

– Internal reference voltage

■ Timers

– Two 16-bit timers with 2 channels (used as

IC, OC, PWM), quadrature encoder

– One 16-bit advanced control timer with 3

channels, supporting motor control

– One 8-bit timer with 7-bit prescaler

– 2 watchdogs: 1 Window, 1 Independent

– Beeper timer with 1, 2 or 4 kHz frequencies

■ Communication interfaces

– Synchronous serial interface (SPI)

–Fast I

C 400 kHz SMBus and PMBus

– USART (ISO 7816 interface and IrDA)

■ Up to 41 I/Os, all mappable on interrupt vectors

■ Development support

– Fast on-chip programming and non-

intrusive debugging with SWIM

– Bootloader using USART

LQFP48

www.st.com

Summary of content (52 pages)

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STM8L052C6 Value Line, 8-bit ultralow power MCU, 32-KB Flash, 256-bytes data EEPROM, RTC, LCD, timers,USART, I2C, SPI, ADC Data brief target specification Features ■ Operating conditions – Operating power supply: 1.8 V to 3.6 V – Temperature range: -40 °C to 85 °C ■ Low power features – 5 low power modes: Wait, Low power run (5.1 µA), Low power wait (3 µA), Active-halt with full RTC (1.
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Contents STM8L052C6 Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 2.1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 Ultra low power continuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Functional overview . . .
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STM8L052C6 Contents 3.14.3 4 3.15 Infrared (IR) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.16 Development support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.1 5 USART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 System configuration options .
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List of tables STM8L052C6 List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. 4/52 Medium density value line STM8L05xxx low power device features and peripheral counts 8 Timer feature comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Legend/abbreviation for Table 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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STM8L052C6 List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Medium density value line STM8L05xxx device block diagram . . . . . . . . . . . . . . . . . . . . 10 Medium density value line STM8L05xxx clock tree diagram . . . . . . . . . . . . . . . . . . . . . . 15 STM8L052C6 48-pin LQFP48 package pinout (with LCD) . . . . . . . . . . . . . . . . . . . . . . . . 21 Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Introduction 1 STM8L052C6 Introduction This document describes the features, pinout, mechanical data and ordering information of the medium density value line STM8L052C6 microcontroller with 32-Kbyte Flash memory density. For further details on the whole STMicroelectronics medium density family please refer to Section 2.2: Ultra low power continuum. For detailed information on device operation and registers, refer to the reference manual (RM0031).
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STM8L052C6 2 Description Description The medium density value line STM8L05xxx devices are members of the STM8L ultra low power 8-bit family. The value line STM8L05xxx ultra low power family features the enhanced STM8 CPU core providing increased processing power (up to 16 MIPS at 16 MHz) while maintaining the advantages of a CISC architecture with improved code density, a 24-bit linear addressing space and an optimized architecture for low power operations.
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Description 2.1 STM8L052C6 Device overview Table 1.
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STM8L052C6 2.2 Description Ultra low power continuum The ultra low power value line STM8L05xxx and STM8L15xxx are fully pin-to-pin, software and feature compatible. Besides the full compatibility within the STM8L family, the devices are part of STMicroelectronics microcontrollers ultra low power strategy which also includes STM8L101xx and STM32L15xxx. The STM8L and STM32L families allow a continuum of performance, peripherals, system architecture, and features. They are all based on STMicroelectronics 0.
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Functional overview STM8L052C6 3 Functional overview Figure 1.
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STM8L052C6 3.1 Functional overview Low power modes The medium density value line STM8L05xxx devices support five low power modes to achieve the best compromise between low power consumption, short startup time and available wakeup sources: ● Wait mode: The CPU clock is stopped, but selected peripherals keep running. An internal or external interrupt, event or a Reset can be used to exit the microcontroller from Wait mode (WFE or WFI mode).
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Functional overview STM8L052C6 3.2 Central processing unit STM8 3.2.1 Advanced STM8 Core The 8-bit STM8 core is designed for code efficiency and performance with an Harvard architecture and a 3-stage pipeline. It contains 6 internal registers which are directly addressable in each execution context, 20 addressing modes including indexed indirect and relative addressing, and 80 instructions.
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STM8L052C6 Functional overview 3.3 Reset and supply management 3.3.1 Power supply scheme The device requires a 1.8 V to 3.6 V operating supply voltage (VDD). The external power supply pins must be connected as follows: ● VSS1 ; VDD1 = 1.8 to 3.6 V: external power supply for I/Os and for the internal regulator. Provided externally through VDD1 pins, the corresponding ground pin is VSS1. ● ● ● 3.3.2 VSSA ; VDDA = 1.8 to 3.6 V: external power supplies for analog peripherals.
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Functional overview 3.4 STM8L052C6 Clock management The clock controller distributes the system clock (SYSCLK) coming from different oscillators to the core and the peripherals. It also manages clock gating for low power modes and ensures clock robustness. Features 14/52 ● Clock prescaler: To get the best compromise between speed and current consumption the clock frequency to the CPU and peripherals can be adjusted by a programmable prescaler.
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STM8L052C6 Functional overview Figure 2. Medium density value line STM8L05xxx clock tree diagram #33 /3#?). /3#?/54 (3% (3% /3# -(Z 393#,+ TO CORE AND (3) (3) 2# -(Z ,3) ,3% ,3% 0ERIPHERAL #LOCK ENABLE BITS #,+"%%03%,; = ,3) ,3) 2# K (Z 24#3%,; = /3# ?).
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Functional overview 3.6 STM8L052C6 LCD (Liquid crystal display) The LCD is only available on STM8L052xx devices. ● The liquid crystal display drives up to 4 common terminals and up to 28 segment terminals to drive up to 112 pixels. Internal step-up converter to guarantee contrast control whatever VDD. ● Static 1/2, 1/3, 1/4 duty supported. ● Static 1/2, 1/3, bias supported. ● Phase inversion to reduce power consumption and EMI. ● Up to 4 pixels which can be programmed to blink.
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STM8L052C6 3.9 Functional overview Analog-to-digital converter ● 12-bit analog-to-digital converter (ADC1) with 25 channels (including 1 fast channel) and internal reference voltage ● Conversion time down to 1 µs with fSYSCLK= 16 MHz ● Programmable resolution ● Programmable sampling time ● Single and continuous mode of conversion ● Scan capability: automatic conversion performed on a selected group of analog inputs ● Analog watchdog ● Triggered by timer Note: ADC1 can be served by DMA1.
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Functional overview 3.11.1 STM8L052C6 TIM1 - 16-bit advanced control timer This is a high-end timer designed for a wide range of control applications. With its complementary outputs, dead-time control and center-aligned PWM capability, the field of applications is extended to motor control, lighting and half-bridge driver. 3.11.2 3.11.
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STM8L052C6 3.13 Functional overview Beeper The beeper function outputs a signal on the BEEP pin for sound generation. The signal is in the range of 1, 2 or 4 kHz. 3.14 Communication interfaces 3.14.1 SPI The serial peripheral interface (SPI1) provides half/ full duplex synchronous serial communication with external devices.
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Functional overview 3.15 STM8L052C6 Infrared (IR) interface The medium density value line STM8L05xxx devices contain an infrared interface which can be used with an IR LED for remote control functions. Two timer output compare channels are used to generate the infrared remote control signals. 3.
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STM8L052C6 Pin description STM8L052C6 48-pin LQFP48 package pinout (with LCD) PE7 PE6 PC7 PC6 PC5 PC4 PC3 PC2 VSS2 VDD2 PC1 PC0 Figure 3.
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Pin description STM8L052C6 Table 3. Legend/abbreviation for Table 4 Type Level I= input, O = output, S = power supply FT Five-volt tolerant TT 3.6 V tolerant Output HS = high sink/source (20 mA) Port and control Input configuration Output Reset state T = true open drain, OD = open drain, PP = push pull Bold X (pin state after reset release). Unless otherwise specified, the pin state is the same during the reset phase (i.e. “under reset”) and after internal reset release (i.e. at reset state).
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STM8L052C6 Medium density value line STM8L05xxx pin description (continued) Pin number PP 29 OD 28 PB4(4)/[SPI1_NSS](8)/ LCD_SEG14/ ADC1_IN14 High sink/source I/O TT(2) Ext. interrupt PB3/TIM2_ETR/ LCD_SEG13/ ADC1_IN15 wpu 27 Output floating I/O level LQFP48 Pin name Type Input Main function (after reset) Table 4.
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Pin description Medium density value line STM8L05xxx pin description (continued) Pin number Output wpu Ext.
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STM8L052C6 Medium density value line STM8L05xxx pin description (continued) Pin number Output wpu Ext.
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Pin description 4.1 STM8L052C6 System configuration options As shown in Table 4: Medium density value line STM8L05xxx pin description, some alternate functions can be remapped on different I/O ports by programming one of the two remapping registers described in the “ Routing interface (RI) and system configuration controller” section in the STM8L15x and STM8L16x reference manual (RM0031).
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STM8L052C6 Memory and register map 5 Memory and register map 5.1 Memory mapping The memory map is shown in Figure 4. Figure 4.
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Memory and register map Table 5. STM8L052C6 Flash and RAM boundary addresses Memory area Size Start address End address RAM 2 Kbytes 0x00 0000 0x00 07FF Flash program memory 32 Kbytes 0x00 8000 0x00 FFFF 5.2 Register map Table 6.
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STM8L052C6 Table 6. Memory and register map I/O port hardware register map (continued) Register label Register name Reset status 0x00 5019 PF_ODR Port F data output latch register 0x00 0x00 501A PF_IDR Port F input pin value register 0xXX PF_DDR Port F data direction register 0x00 0x00 501C PF_CR1 Port F control register 1 0x00 0x00 501D PF_CR2 Port F control register 2 0x00 Register name Reset status Address 0x00 501B Table 7.
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Memory and register map Table 7.
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STM8L052C6 Table 7.
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Memory and register map Table 7.
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STM8L052C6 Table 7.
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Memory and register map Table 7.
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STM8L052C6 Table 7.
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Memory and register map Table 7.
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STM8L052C6 Table 7.
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Memory and register map Table 7.
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STM8L052C6 Table 7.
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Memory and register map Table 7.
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STM8L052C6 Table 7.
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Memory and register map Table 7.
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STM8L052C6 Table 7.
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Memory and register map Table 8.
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STM8L052C6 Interrupt vector mapping 6 Interrupt vector mapping Table 9. Interrupt mapping IRQ No.
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Interrupt vector mapping Table 9. STM8L052C6 Interrupt mapping (continued) Wakeup from Halt mode Wakeup Wakeup Wakeup from from Wait from Wait Active(WFI (WFE halt mode mode) mode)(1) IRQ No.
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STM8L052C6 Package characteristics 7 Package characteristics 7.1 ECOPACK In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark.
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Package characteristics STM8L052C6 7.2 Package mechanical data 7.2.1 48-pin low profile quad flat 7x7mm package (LQFP48) Figure 5. LQFP48 48-pin low profile quad flat package outline $ CCC $ $ $ " " , B % % % 0IN IDENTIFICATION , ! + D "?-% 1. Drawing is not to scale. Table 10. LQFP48 48-pin low profile quad flat package, mechanical data inches(1) mm Dim. Min Typ A Max Min 1.6 A1 0.05 A2 1.35 b 0.17 Max 0.063 0.15 0.002 0.0059 1.4 1.
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STM8L052C6 Figure 6. Package characteristics LQFP48 recommended footprint 9.40 7.70 0.54 9.40 0.80 5V_FP 1. Dimensions are in millimeters.
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Device ordering information 8 STM8L052C6 Device ordering information Figure 7. Medium density value line STM8L05xxx ordering information scheme Example: STM8 L 052 C 6 T 6 Product class STM8 microcontroller Family type L = Low power Sub-family type 052 = Ultra-low-power with LCD Pin count C = 48 pins Program memory size 6 = 32 Kbytes Package T = LQFP Temperature range 6 = - 40 °C to 85 °C 1. 50/52 For a list of available options (e.g.
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STM8L052C6 9 Revision history Revision history Table 11. Document revision history Date Revision Changes 20-Apr-2012 1 Initial release. 05-Jun-2012 2 Modified address in Memory map Modified Section 2.
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STM8L052C6 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.