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GD32H757VMT7 Folha de dados(PDF) 137 Page - GigaDevice Semiconductor (Beijing) Inc.

Nome de Peças GD32H757VMT7
Descrição Electrónicos  Arm® Cortex®-M7 32-bit MCU
PDF  151 Pages
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Fabricante Electrônico  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Página de início  http://www.gigadevice.com/
Logo GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD32H757VMT7 Folha de dados(HTML) 137 Page - GigaDevice Semiconductor (Beijing) Inc.

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GD32H757xx Datasheet
136
Table 4-79. SDRAM read timings
Symbol
Parameter
Min
Max
Unit
tw(SDCLK)
EXMC_SDCLK period
2 Tfclk
− 0.5
2 Tfclk +0.5
ns
tsu(SDCLKH _Data)
Data input setup time
3.5
—
th(SDCLKH_Data)
Data input hold time
0
—
td(SDCLKL_Add)
Address valid time
—
2.5
td(SDCLKL- SDNE)
Chip select valid time
—
2.5
th(SDCLKL_SDNE)
Chip select hold time
0
—
td(SDCLKL_NRAS)
NRAS valid time
—
2
th(SDCLKL_NRAS)
NRAS hold time
0
—
td(SDCLKL_NCAS)
NCAS valid time
—
2
th(SDCLKL_NCAS)
NCAS hold time
0
—
4.34.
TIMER characteristics
Table 4-80.
TIMER characteristics(1)
Symbol
Parameter
Conditions
Min
Max
Unit
tres
Timer resolution time
—
1
—
tTIMERxCLK
fTIMERxCLK =
300 MHz
3.3
—
ns
fEXT
Timer external clock
frequency
—
0
fTIMERxCLK/2
MHz
fTIMERxCLK =
300 MHz
0
333
MHz
RES
Timer resolution
TIMER0 &
TIMER2 &
TIMER3 &
TIMER7&
TIMER14 &
TIMER15 &
TIMER16 &
TIMER30 &
TIMER31 &
TIMER40 &
TIMER41 &
TIMER42 &
TIMER43 &
TIMER44
—
16
bit
TIMER1 &
TIMER4 &
TIMER5 &
TIMER6 &
TIMER22 &
—
32
bit



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