Power control (PWR) RM0367
146/1043 RM0367 Rev 7
Range 2 and 3
The regulator can also be programmed to output a regulated 1.5 V (typical, range 2) or a
1.2 V (typical, range 3) without any limitations on V
DD
(1.65 to 3.6 V).
• At 1.5 V, the Flash memory is still functional but with medium read access time. This is
the “medium performance” range. Program and erase operations on the Flash memory
are still possible.
• At 1.2 V, the Flash memory is still functional but with slow read access time. This is the
“low performance” range. Program and erase operations on the Flash memory are not
possible under these conditions.
Refer to Table 31 for details on the performance for each range.
Figure 11. Performance versus V
DD
and V
CORE
range
Table 31. Performance versus V
CORE
ranges
CPU
performance
Power
performance
V
CORE
range
Typical
Value (V)
Max frequency
(MHz)
V
DD
range
1 WS 0 WS
High Low 1 1.8 32 16 1.71 - 3.6
Medium Medium 2 1.5 16 8
1.65 - 3.6
Low High 3 1.2 4.2 4.2
4.2 MHz
0WS
16 MHz
MHz
32 MHz
1.2 V
1.5 V
1.8 V
V
CORE
1.65 V - 3.6 V
1.71 V – 3.6 V
32
1
16 MHz
8 MHz
32
24
16
12
8
4
Range 1
Range 2
Range 3
MS32792V1
V
DD
F
CPU
> 8 MHz
1W S
0WS
F
CPU
> 16 MHz
1WS
0WS