STM32F207ZF STMicroelectronics, STM32F207ZF Datasheet - Page 98

• Manufacturer Part Number: STM32F207ZF
• Description: High-performance ARM Cortex-M3 MCU with 768 Kbytes Flash, 120 MHz CPU, ART Accelerator, Ethernet
• Manufacturer: STMicroelectronics

Specifications of STM32F207ZF

• 10/100 Ethernet Mac With Dedicated Dma: supports IEEE 1588v2 hardware, MII/RMII

Electrical characteristics
Table 45.
1. The I/O speed is configured using the OSPEEDRy[1:0] bits. Refer to the STM32F20/21xxx reference manual for a
2. TBD stands for “to be defined”.
3. The maximum frequency is defined in
4. For maximum frequencies above 50 MHz, the compensation cell should be used.
98/170
OSPEEDRy
[1:0] bit
value
description of the GPIOx_SPEEDR GPIO port output speed register.
11
-
(1)
I/O AC characteristics
F
Figure 37. I/O AC characteristics definition
Symbol
max(IO)out
t
t
t
r(IO)out
EXTIpw
f(IO)out
Maximum frequency
Output high to low level fall
time
Output low to high level rise
time
Pulse width of external signals
detected by the EXTI
controller
EXT ERNAL
OUTPUT
ON 50pF
Maximum frequency is achieved if (t r + t f ) ≤ 2/3)T and if the duty cycle is (45-55%)
Parameter
Figure
(1)(2)
t r(I O)out
37.
(continued)
(3)
Doc ID 15818 Rev 8
10%
50%
when loaded by 50pF
C
C
C
C
C
C
C
C
L
L
L
L
L
L
L
L
90%
= 20 pF, 2.4 < V
= 20 pF, 2.4 < V
= 30 pF, V
= 30 pF, V
= 10 pF, V
= 10 pF, V
= 10 pF, V
= 10 pF, V
Conditions
T
DD
DD
DD >
DD >
DD >
DD >
10%
> 2.7 V
> 2.7 V
50%
2.70 V
1.8 V
2.70 V
1.8 V
DD
DD
90%
< 2.7 V
< 2.7 V
t r(I O)out
STM32F205xx, STM32F207xx
Min
10
-
-
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
-
-
100
200
50
Max
TBD
TBD
TBD
TBD
TBD
ai14131
-
(4)
(4)
(4)
MHz
Unit
ns
ns