STM32F205XX_12 STMICROELECTRONICS [STMicroelectronics], STM32F205XX_12 Datasheet - Page 132

• Manufacturer Part Number: STM32F205XX_12
• Description: ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
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Figure 61. Synchronous non-multiplexed PSRAM write timings
Table 77.
1. C
2. Based on characterization, not tested in production.
t
t
t
t
t
d(CLKL-NADVL)
t
d(CLKL-NWEH)
d(CLKL-NWEL)
t
d(CLKL-NExH)
d(CLKL-NBLH)
d(CLKL-NExL)
t
d(CLKL-Data)
t
FSMC_D[15:0]
FSMC_NWAIT
(WAITCFG = 0b, WAITPOL + 0b)
d(CLKL-AIV)
FSMC_A[25:0]
d(CLKL-AV)
Symbol
t
t
NADVH)
FSMC_NADV
d(CLKL-
w(CLK)
L
FSMC_NWE
FSMC_NBL
FSMC_CLK
= 30 pF.
FSMC_NEx
t d(CLKL-NADVL)
t d(CLKL-NExL)
Synchronous non-multiplexed PSRAM write timings
FSMC_CLK period
FSMC_CLK low to FSMC_NEx low (x=0..2)
FSMC_CLK low to FSMC_NEx high (x= 0…2)
FSMC_CLK low to FSMC_NADV low
FSMC_CLK low to FSMC_NADV high
FSMC_CLK low to FSMC_Ax valid (x=16…25)
FSMC_CLK low to FSMC_Ax invalid (x=16…25)
FSMC_CLK low to FSMC_NWE low
FSMC_CLK low to FSMC_NWE high
FSMC_D[15:0] valid data after FSMC_CLK low
FSMC_CLK low to FSMC_NBL high
t w(CLK)
t d(CLKL-AV)
t d(CLKL-NWEL)
Doc ID 15818 Rev 9
t su(NWAITV-CLKH)
Parameter
t d(CLKL-Data)
t d(CLKL-NADVH)
Data latency = 0
t w(CLK)
D1
t h(CLKH-NWAITV)
2T
HCLK
Min
2
t d(CLKL-NExH)
t d(CLKL-NWEH)
t d(CLKL-NBLH)
8
1
6
1
-
-
-
-
-
(1)(2)
BUSTURN = 0
t d(CLKL-Data)
t d(CLKL-AIV)
D2
- 1
STM32F20xxx
Max
1
0
1
5
2
-
-
-
-
-
-
ai14993g
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns