STM32L151C8U6 STMicroelectronics, STM32L151C8U6 Datasheet - Page 80

• Manufacturer Part Number: STM32L151C8U6
• Description: Microcontrollers (MCU) 32-Bit Arm Cortex M3 64kb UltralowPower
• Manufacturer: STMicroelectronics
• Series: STM32r

Specifications of STM32L151C8U6

• Core: ARM Cortex M3
• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 16x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-UFQFN Exposed Pad
• Lead Free Status / Rohs Status: Details

Electrical characteristics
80/107
SPI characteristics
Unless otherwise specified, the parameters given in the following table are derived from
tests performed under ambient temperature, f
conditions summarized in
Refer to
function characteristics (NSS, SCK, MOSI, MISO).
Table 44.
1. Remapped SPI1 characteristics to be determined.
2. Based on characterization, not tested in production.
3. Min time is for the minimum time to drive the output and max time is for the maximum time to validate the
4. Min time is for the minimum time to invalidate the output and max time is for the maximum time to put the
DuCy(SCK)
t
t
t
t
t
t
dis(SO)
t
w(SCKH)
v(SO)
t
w(SCKL)
v(MO)
su(NSS)
t
a(SO)
Symbol
1/t
t
data.
data in Hi-Z.
t
t
h(NSS)
t
su(MI)
t
h(MO)
su(SI)
h(MI)
h(SO)
t
t
h(SI)
r(SCK)
f(SCK)
f
c(SCK)
SCK
(2)(3)
(2)(1)
(2)(1)
(2)
(2)(4)
(2)
(2)
(2)
(2)
Section 6.3.11: I/O port characteristics
(2)
(2)
(2)
(2)
(2)
SPI characteristics
SPI clock frequency
SPI clock rise and fall
time
SPI slave input clock duty
cycle
NSS setup time
NSS hold time
SCK high and low time
Data input setup time
Data input hold time
Data output access time
Data output disable time
Data output valid time
Data output valid time
Data output hold time
Parameter
Table
Doc ID 17659 Rev 4
9.
(1)
Master mode
Slave mode
Capacitive load: C = 30 pF
Slave mode
Slave mode
Slave mode
Master mode, f
presc = 4
Master mode
Slave mode
Master mode
Slave mode
Slave mode, f
Slave mode
Slave mode (after enable edge)
Master mode (after enable edge)
Slave mode (after enable edge)
Master mode (after enable edge)
PCLKx
for more details on the input/output alternate
Conditions
PCLK
frequency and V
PCLK
= 20 MHz
= 16 MHz,
STM32L151xx, STM32L152xx
DD
4t
2t
Min
TBD
TBD
TBD
TBD
supply voltage
PCLK
PCLK
30
5
5
5
4
0
3t
Max
TBD
TBD
TBD
TBD
TBD
PCLK
16
16
70
MHz
Unit
ns
ns
%