STM32 coding matrix

STM32F051R8

F0 Architecture

Code	Core	Max freq	FLASH	SRAM	PACKAGE
F0	CortexM0	48MHz	16KB - 256KB	4KB - 32KB	20 - 100	Mainstream
F1	CortexM3	72MHz	16KB - 1024KB	4KB - 96KB	36 - 144	Mainstream
F2	CortexM3	120MHz	128KB - 1024KB	64KB - 128KB	64 - 176	High performance
F3	CortexM4	72MHz	16KB - 512KB	16KB - 80KB	32 - 144	Mainstream
F4	CortexM4	180MHz	64KB - 2048KB	32KB - 384KB	36 - 216	High performance
F7	CortexM7	216MHz	64KB - 2048KB	256KB - 512KB	64 - 216	High performance
G0	CortexM0+	64MHz	16KB - 128KB	8KB - 36KB	8 - 64	Mainstream
G4	CortexM4	170MHz	32KB - 512KB	32KB - 128KB	32 - 128	Mainstream
H7	CortexM7 + M4	480MHz	128KB - 2048KB	692KB - 1024KB	100 - 265	High performance
L0	CortexM0+	32MHz	8KB - 192KB	2KB - 20KB	14 - 100	Ultra low-power
L1	CortexM3	32MHz	32KB - 512KB	4KB - 80KB	48 - 144	Ultra low-power
L4	CortexM4	80MHz	64KB - 1024KB	40KB - 320KB	32 - 169	Ultra low-power
L4+	CortexM4	120MHz	1024KB - 2048KB	640KB	100 - 144	Ultra low-power
L5	CortexM33	110MHz	256KB - 512KB	256KB	48 - 144	Ultra low-power
WB	CortexM4 + M0+	64MHz	256KB - 1024KB	128KB - 256KB	48 - 129	Wireless

R Pin count

Code	Pin count		Pin count	Code
A	169		14	D
B	208		20	F
C	48		25	E
D	14		28	G
E	25		32	K
F	20		36	T
G	28		40	H
H	40		48	C
I	176		63	U
J	72		64	R
K	32		72	J
M	81		81	M
N	216		90	O
O	90		100	V
Q	132		132	Q
R	64		144	Z
T	36		169	A
U	63		176	I
V	100		208	B
Z	144		216	N
X	240		240	X

8 Flash size

Code	Flash size
3	8KB
4	16KB
6	32KB
8	64KB
B	128KB
C	256KB
D	384KB
E	512KB
F	768KB
G	1024KB
I	2048KB
Z	192KB