Part Numbering Scheme - STMicroelectronics switch/hub Brochure

PSD
PSD
uPSD32/33/34
Device Family
uPSD32 – Standard uPSD
uPSD33 – Turbo uPSD
uPSD34 – Turbo uPSD Plus
SRAM Size
1 = 2K Byte
3 = 8K Byte
5 = 32K Byte
www.st.com/micropsd

Part Numbering Scheme

Part Numbering Scheme
3 4 B
Main Flash Size
2 = 64K Byte
3 = 128K Byte
4 = 256K Byte
5 = 512K Byte
Peripheral Set
A = Std Periphs w/USB
B = A minus USB
C = B minus DDC
D = Enhanced Periphs
E = D with full spd USB
F = E with 32 macrocells
-
V
24 U 6
Vcc
blank = 5V
V = 3.3V
Operating Temp
6 = -40 to 85C
MCU Frequency
24 = 24 MHz
40 = 40 MHz
T
Package Type
T = TQFP52
U = TQFP80
H = TQFP100
Packaging Options
T = Tape & Reel
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