STM32L151CBU6 STMicroelectronics, STM32L151CBU6 Datasheet - Page 76

• Manufacturer Part Number: STM32L151CBU6
• Description: IC MCU 32BIT 128KB FLASH 48QFPN
• Manufacturer: STMicroelectronics
• Series: STM32r

Specifications of STM32L151CBU6

• 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: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K 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: Lead free / RoHS Compliant
• Other names: 497-11484

Electrical characteristics
6.3.12
76/107
Figure 18. I/O AC characteristics definition
NRST pin characteristics
The NRST pin input driver uses CMOS technology.
Unless otherwise specified, the parameters given in
performed under ambient temperature and V
Table
Table 40.
1. Guaranteed by design, not tested in production.
2. 200 mV minimum value
3. The pull-up is designed with a true resistance in series with a switchable PMOS. This PMOS contribution
V
V
V
V
V
V
OL(NRST)
NF(NRST)
IH(NRST)
IL(NRST)
Symbol
F(NRST)
hys(NRST)
to the series resistance is around 10%.
R
9.
PU
Maximum frequency is achieved if (t
(1)
(1)
(1)
(1)
(1)
External
on 50pF
Output
NRST pin characteristics
NRST input low level voltage
NRST input high level voltage
NRST output low level
voltage
NRST Schmitt trigger voltage
hysteresis
Weak pull-up equivalent
resistor
NRST input filtered pulse
NRST input not filtered pulse
t r(I O)out
(3)
Parameter
10%
50%
Doc ID 17659 Rev 4
when loaded by 50 pF
90%
r
+ t
f
)  2/3)T and if the duty cycle is (45-55%)
1.65 V < V
2.7 V < V
T
10%
DD
I
Conditions
OL
I
OL
V
50%
supply voltage conditions summarized in
IN
= 1.5 mA
= 2 mA

DD
90%
DD
Table 40
V
t r(I O)out
SS
< 3.6 V
< 2.7 V
STM32L151xx, STM32L152xx
are derived from tests
10%V
Min
V
350
1.4
30
SS
DD
(2)
ai14131
Typ Max Unit
45
V
0.8
0.4
60
50
DD
mV
k
ns
ns
V