ST SCM001V1 User Manual

based on the M41T62 and ST72651AR6

Features

■ Small mechanical size: 65 mm X 22 mm, with a

USB connector

■ User-friendly GUI (graphical user interface),

allowing the user to:
– directly monitor/control RTC parameters
– switch between various application modes

(RTC/mass storage)

– selec t th e voltage supply of the RTC

(ST72651AR6 regulator/capacitor)

– access a help window to explain all GUI

operations

Description

The STEVAL-SCM001V1 RTC dongle
demonstrates all the features of
STMicroelectronics’ M41T62 serial access RTC
(real-time clock), as well as the mass storage
capability using the ST7 USB. The demonstration
board also demonstrates the RTC ope ration using
a capacitor or the ST7 MCU regulator as a supp ly.

STEVAL-SCM001V1

RTC dongle demonstration board

Data Brief

STEVAL-SCM001V1

July 2008 Rev 1 1/4

For further information contact your local STMicroelectronics sales office .

www.st.com

4

Circuit schematic STEVAL-SCM001V1

V

P

P

1 Circuit schematic

Figure 1. Schematic diagram

C13B

?

680uF

C13

CC
V

P3
T

14

k7
4

5

D6

D7

D4

D

6

7

8
4

U2

1

K
7
.
4

R3

nF

C5

0
0
1

F
µ

4.7

C11

f
d
d
V

40

41

42

43

44

45

4

4

6

C

C

NC

N

N

NC

O

I/O 4

I/O 5

I/

I/O 7

C

SE

#CE

#RE

#R/B

#

NC

N

NC

NC

NC

9

8

7

6

5

4

3

2

1

CE
_

3

SMC _RB

NA ND

PA

7k
.
4

R6

D3

D1

D0

D2

6
3

37

38

39

C

NC

N

NC

VC C

VC C

NC

NC

13

12

11

10

Vddf

8

25

26

27

2

29

30

31

32

33

34

35

0

C

C

NC

N

N

NC

NC

NC

NC

VSS

I/O

I/O 1

I/O 2

I/O 3

C

AL E

CL E

NC

N

VSS

4

18

17

16

15

1

PA1

PA0

PA2

1

SH

P

E

C

C

C

W

AN D_FL A

N

N

NC

NC

N

#

#W

N

4
2

23

22

21

20

19

PA7

O n B oar d F l a sh

R

VC C

VC C

8
C

L
A
N
O

I
T
P
O

SDA -1

SCL- 1

2

0

1

11

1

9

L

UT

NC

SC

SDA

O
/

NC

13

14

15

16

4
U

2

XT

6pF

NC

8

Q

VC C

NC

R
I

NC

NC

I
X

1

KH z
8

.76
2
3

C9

7

NC

6

VS S

M4 1T62

S
S
V

XO

4

3

2

D
N
G

TP2

6pF

GND

5

W

SQ

R T C

USB_ 5V

E
0
7

R5

4

470E

R7

LED

D2

LD 1

L

ED1

LED 2

L

AL

ON
I

PT
O

_5V
B

US

2

1

P1
J

1
R

CC
V

V
_5

B

US

F

B

n
0

P

-

4

0

C

1

W

1

S

S

2

4k7

R

49

1
P
T

C31

0k
1

C2

C1

V
0

-1
F

0
C1

10µ

VPP

50

RESET

51

SCL

52

SDA

53

54

55

56

ICC CL K

57

ICC DA TA

F

58

n
0

59

0

VD D

60

GND

61

62

F
p
3
3

XT 1

F
3p

3

63

64

12M Hz

1
U

4

3

2

1

D

D+

CC

_D-

_

V

B

ON
C

SB

B_

US

U

B

S

S

U

USB_ GN

1
J

U

ND _CE1
A
N

2

3

5

6

8

4

4

44

4

4

47

4

)
S

HS)

(H

(

2
E

PE0

P

VP P

RESE T

SCL

SDA

PF2

F

PF5/I CC CL K

265

PF6/I CC DA TA

7

Vd d2

ST

Vd da

Vssa

Vss2

OSC IN

OSC OUT

dd

CC

M

DP

f

BV

BV

B

BD

dd

S

S

Vssf

V

U

U

US

US

7

6

5

4

3

2

1

GND

df
Vd

2
1
C

1

nF

C6

100

6

3

5

D

D4

D1

E

E

ED

E

LED

L

L

L

LED 2

L

5

7

8

9

0

1
4

8

33

34

3

36

3

3

3

4

4

1

3

C

C6

D2

P

PC5

P

PC7

PD0

PD

P

PD

5

4

3

1

0

D2

D

D

D

/ D

/

/ D

/

/

/

5

4

1

0

B

B

B3

B2

B

P

P

P

P

P

PB

9

3

1

0

16

15

14

1

12

1

1

5

D0D1D2

D3

D4

D

F
n

C7

100

µF
7

4.

VC C

2

1
D

868
4

IN

E

E

0

0

0E

1

70

7

R8

4

LED

3
D
L

LED 3

Vd d1

PA 7

PA 4 / SM C_ R/B

PA 3/SM C_ RE/C F_R E

PA 2/SM C_ AL E/ CF_A 2

PA 1/SM C_ WE /CF_ A1

PA 0/SM C_ CL E/CF _A 0

PB7 / D7

PB6 / D6

470E

R16

R

4

R9

47

D

LED

LE

LED

4
D

LD 6

LD 5

L

D6
E
L

LED 4

LED 5

GND

32

VD D

31

30

29

28

5

27

26

25

24

23

22

21

20

19

18

17

0K
1

R1

PA7

SM C_RB

PA3

PA2

PA1

PA0

D7

D6

ST 7 265

1

A-1

L-1

DA -

D

C

SCL- 1

S

S

S

k
0

0k

1

1

100E

R18

R13

1

R12 100E

R1

SDASCL

2

D2

IN4 148

1

VD D

Vd df

k
0
1

D

VD

V

USB_ 5

R17

T

CLK

D

D

P

C

P

ESE

GN

V

VD

IC

R

ICCDA TA

6

5

4

3

2

1

2
J

ICC

I C P

5k

4
R

1.

2/4

AM00645v1

STEVAL-SCM001V1 Revision history

2 Revision history

Table 1. Document revision history

Date Revision Changes

30-Jun-2008 1 Initial release.

3/4

STEVAL-SCM001V1

y

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