Datasheet

Electrical characteristics STM32L476xx
164/270 DS10198 Rev 8
6.3.10 Flash memory characteristics
Table 62. PLL, PLLSAI1, PLLSAI2 characteristics
(1)
Symbol Parameter Conditions Min Typ Max Unit
f
PLL_IN
PLL input clock
(2)
-4-16MHz
PLL input clock duty cycle - 45 - 55 %
f
PLL_P_OUT
PLL multiplier output clock P
Voltage scaling Range 1 2.0645 - 80
MHz
Voltage scaling Range 2 2.0645 - 26
f
PLL_Q_OUT
PLL multiplier output clock Q
Voltage scaling Range 1 8 - 80
MHz
Voltage scaling Range 2 8 - 26
f
PLL_R_OUT
PLL multiplier output clock R
Voltage scaling Range 1 8 - 80
MHz
Voltage scaling Range 2 8 - 26
f
VCO_OUT
PLL VCO output
Voltage scaling Range 1 64 - 344
MHz
Voltage scaling Range 2 64 - 128
t
LOCK
PLL lock time - - 15 40 s
Jitter
RMS cycle-to-cycle jitter
System clock 80 MHz
-40-
±ps
RMS period jitter - 30 -
I
DD
(PLL)
PLL power consumption on
V
DD
(1)
VCO freq = 64 MHz - 150 200
A
VCO freq = 96 MHz - 200 260
VCO freq = 192 MHz - 300 380
VCO freq = 344 MHz - 520 650
1. Guaranteed by design.
2. Take care of using the appropriate division factor M to obtain the specified PLL input clock values. The M factor is shared
between the 3 PLLs.
Table 63. Flash memory characteristics
(1)
Symbol Parameter Conditions Typ Max Unit
t
prog
64-bit programming time - 81.69 90.76 µs
t
prog_row
one row (32 double
word) programming time
normal programming 2.61 2.90
ms
fast programming 1.91 2.12
t
prog_page
one page (2 Kbyte)
programming time
normal programming 20.91 23.24
fast programming 15.29 16.98
t
ERASE
Page (2 KB) erase time - 22.02 24.47
t
prog_bank
one bank (512 Kbyte)
programming time
normal programming 5.35 5.95
s
fast programming 3.91 4.35
t
ME
Mass erase time
(one or two banks)
- 22.13 24.59 ms
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