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The SM7301 is normally shipped with the on-chip FLASH memory array in the erased state (that is, contents = FFH) and ready to be programmed. To programming on-chip FLASH memory, MCU must be in the RESET mode. 2. Pin Assignment and Description 40 Pins DIP 44 Pins QFP 44 Pins PLCC Name I/O Description 1,2,3,4,5,6,7,8 40,41,42,43,44,1,2,3 2,3,4,5,6,7,.
age, Ground
30 27
33
ALE I Flash chip enable
29 26
32
PSEN I Flash data output enable
10 5
11
P3.0 I Enable Chip-Erase Mode (low active)
13 9
15
P3.3 I Enable Programming Mode (low active)
14 10
16
P3.4 I Enable Programming Protect bit (low active)
15 11
17
P3.5 I Enable Flash Mode Select
11,12
7,8
13,14
P3.1,P3.2
I
Must set the HIGH, When enter Programming
FLASH
18 14
20
X2 O Crystal out, Let floating
16, 17,
12,13
18,19
P3.6, P3.7
O
Let all unused pins are floating.
17,28,39,6
23,34,1,12
P4 O Let all unused pins are floating.
*1 The size of FLASH RAM in .
SM7301 - Linkage
GOSTON ELECTRONICS CO.,LTD SM7301 LED v1.6 SM7301 730V 20VDC~600VDC BUCK， PF 0.95 90% PWM .
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | SM7302 |
Linkage |
Non-isolated BUCK constant current control power switch |
|
| 2 | SM7302ESKP |
Sinopower |
Dual N-Channel MOSFET |
|
| 3 | SM7303ESKP |
Sinopower |
Dual N-Channel MOSFET |
|
| 4 | SM7304ESKP |
Sinopower |
Dual N-Channel MOSFET |
|
| 5 | SM7305ESKP |
Sinopower |
Dual N-Channel MOSFET |
|
| 6 | SM7306ESKP |
Sinopower |
Dual N-Channel MOSFET |
|
| 7 | SM7307 |
Sunmoon |
Non-Isolated BUCK Constant current control power switch |
|
| 8 | SM7307 |
DAYBEETTER |
Constant primary control power switch |
|
| 9 | SM7307DSKP |
Sinopower |
Dual N-Channel MOSFET |
|
| 10 | SM7308CSKP |
Sinopower |
Dual MOSFET |
|
| 11 | SM7309CSKP |
Sinopower |
Dual MOSFET |
|
| 12 | SM731 |
Silicon Motion |
Mobile Computer Display Controller |
|