Datasheet

Electrical characteristics STM32F405xx, STM32F407xx
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5.3.26 Camera interface (DCMI) timing specifications
5.3.27 SD/SDIO MMC card host interface (SDIO) characteristics
Unless otherwise specified, the parameters given in Ta bl e 8 4 are derived from tests
performed under ambient temperature, f
PCLKx
frequency and V
DD
supply voltage conditions
summarized in Table 1 1 .
Refer to Section 5.3.16: I/O port characteristics for more details on the input/output alternate
function characteristics (D[7:0], CMD, CK).
Figure 70. SDIO high-speed mode
Table 82. Switching characteristics for NAND Flash write cycles
(1)
1. C
L
= 30 pF.
Symbol Parameter Min Max Unit
t
w(NWE)
FSMC_NWE low width 4T
HCLK
–1 4T
HCLK
+ 3 ns
t
v(NWE-D)
FSMC_NWE low to FSMC_D[15-0] valid - 0 ns
t
h(NWE-D)
FSMC_NWE high to FSMC_D[15-0] invalid 3T
HCLK
–2 - ns
t
d(D-NWE)
FSMC_D[15-0] valid before FSMC_NWE high 5T
HCLK
–3 - ns
t
d(ALE-NWE)
FSMC_ALE valid before FSMC_NWE low - 3T
HCLK
ns
t
h(NWE-ALE)
FSMC_NWE high to FSMC_ALE invalid 3T
HCLK
–2 - ns
Table 83. DCMI characteristics
Symbol Parameter Conditions Min Max Unit
Frequency ratio DCMI_PIXCLK/
f
HCLK
(1)
1. Maximum value of DCMI_PIXCLK = 54 MHz.
0.4
t
W(CKH)
CK
D, CMD
(output)
D, CMD
(input)
t
C
t
W(CKL)
t
OV
t
OH
t
ISU
t
IH
t
f
t
r
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