Datasheet

Electrical characteristics STM32F303xB STM32F303xC
82/149 DS9118 Rev 14
6.3.9 PLL characteristics
The parameters given in Table 46 are derived from tests performed under ambient
temperature and supply voltage conditions summarized in Table 24.
6.3.10 Memory characteristics
Flash memory
The characteristics are given at T
A
= –40 to 105 °C unless otherwise specified.
Table 46. PLL characteristics
Symbol Parameter
Value
Unit
Min Typ Max
f
PLL_IN
PLL input clock
(1)
1. Take care of using the appropriate multiplier factors so as to have PLL input clock values compatible with
the range defined by f
PLL_OUT
.
1
(2)
-24
(2)
MHz
PLL input clock duty cycle 40
(2)
-60
(2)
%
f
PLL_OUT
PLL multiplier output clock 16
(2)
-72MHz
t
LOCK
PLL lock time - - 200
(2)
µs
Jitter Cycle-to-cycle jitter - - 300
(2)
2. Guaranteed by design.
ps
Table 47. Flash memory characteristics
Symbol Parameter Conditions Min Typ Max
(1)
1. Guaranteed by design.
Unit
t
prog
16-bit programming time T
A
= –40 to +105 °C 40 53.5 60 µs
t
ERASE
Page (2 KB) erase time T
A
= –40 to +105 °C 20 - 40 ms
t
ME
Mass erase time T
A
= –40 to +105 °C 20 - 40 ms
I
DD
Supply current
Write mode - - 10 mA
Erase mode - - 12 mA
Table 48. Flash memory endurance and data retention
Symbol Parameter Conditions
Value
Unit
Min
(1)
1. Guaranteed by characterization results.
N
END
Endurance
T
A
= –40 to +85 °C (6 suffix versions)
T
A
= –40 to +105 °C (7 suffix versions)
10 kcycles
t
RET
Data retention
1 kcycle
(2)
at T
A
= 85 °C
2. Cycling performed over the whole temperature range.
30
Years1 kcycle
(2)
at T
A
= 105 °C 10
10 kcycles
(2)
at T
A
= 55 °C 20
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