STM32L-DISCOVERY STMicroelectronics, STM32L-DISCOVERY Datasheet - Page 138

• Manufacturer Part Number: STM32L-DISCOVERY
• Description: BOARD, EVAL, STM32L-DISCOVERY
• Manufacturer: STMicroelectronics
• Series: STM32r
• Type: MCUr

Specifications of STM32L-DISCOVERY

• Kit Contents: Board, Debugger, Programmer And Compiler
• Features: 128KB Flash Plus Multiple Timers, Analogue Peripherals
• Silicon Manufacturer: ST Micro
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: STM32
• Silicon Family Name: STM32F1xx
• Rohs Compliant: Yes
• Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: STM32L
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical characteristics
5.3.28
138/163
Figure 73. SD default mode
Table 78.
1. Refer to SDIO_CLKCR, the SDI clock control register to control the CK output.
RTC characteristics
Table 79.
CMD, D inputs (referenced to CK)
CMD, D outputs (referenced to CK) in MMC and SD HS mode
CMD, D outputs (referenced to CK) in SD default mode
Symbol
Symbol
t
t
W(CKH)
W(CKL)
t
t
t
t
OHD
t
OVD
f
ISU
t
OH
PP
OV
t
t
IH
-
-
r
f
SD / MMC characteristics
RTC characteristics
Clock frequency in data transfer
mode
SDIO_CK/f
Clock low time, f
Clock high time, f
Clock rise time
Clock fall time
Input setup time
Input hold time
Output valid time
Output hold time
Output valid default time
Output hold default time
f
ratio
PCLK1
/RTCCLK frequency
D, CMD
(output)
Parameter
CK
PCLK2
Parameter
PP
PP
frequency ratio
= 16 MHz
Doc ID 15818 Rev 6
= 16 MHz
Any read/write
operation from/to an
RTC register
Conditions
-
C
t OVD
C
C
C
C
C
C
C
C
C
C
L
L
L
L
L
L
L
L
L
L
L
Conditions
≤ 30 pF
≤ 30 pF
≤ 30 pF
≤ 30 pF
≤ 30 pF
≤ 30 pF
≤ 30 pF
≤ 30 pF
≤ 30 pF
≤ 30 pF
≤ 30 pF
(1)
STM32F205xx, STM32F207xx
t OHD
Min
Min
0.3
0.5
32
31
0
2
0
4
-
ai14888
Max
Max
8/3
3.5
48
5
6
7
-
Unit
MHz
Unit
ns
ns
ns
ns
-
-