Datasheet

DS10668 Rev 6 75/126
STM32L031x4/6 Electrical characteristics
96
6.3.8 PLL characteristics
The parameters given in Table 44 are derived from tests performed under ambient
temperature and V
DD
supply voltage conditions summarized in Table 20.
6.3.9 Memory characteristics
RAM memory
Flash memory and data EEPROM
Table 44. PLL characteristics
Symbol Parameter
Value
Unit
Min Typ Max
(1)
1. Guaranteed by characterization results.
f
PLL_IN
PLL input clock
(2)
2. 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
.
2- 24MHz
PLL input clock duty cycle 45 - 55 %
f
PLL_OUT
PLL output clock 2 - 32 MHz
t
LOCK
PLL input = 16 MHz
PLL VCO = 96 MHz
- 115 160 µs
Jitter Cycle-to-cycle jitter - ± 600 ps
I
DDA
(PLL) Current consumption on V
DDA
- 220 450
µA
I
DD
(PLL) Current consumption on V
DD
- 120 150
Table 45. RAM and hardware registers
Symbol Parameter Conditions Min Typ Max Unit
VRM Data retention mode
(1)
1. Minimum supply voltage without losing data stored in RAM (in Stop mode or under Reset) or in hardware
registers (only in Stop mode).
STOP mode (or RESET) 1.65 - - V
Table 46. Flash memory and data EEPROM characteristics
Symbol Parameter Conditions Min Typ Max
(1)
Unit
V
DD
Operating voltage
Read / Write / Erase
-1.65-3.6V
t
prog
Programming time for
word or half-page
Erasing - 3.28 3.94
ms
Programming - 3.28 3.94
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