/

   

, .

  .

, - MMC -.

  .

PIC18F458. -: 128 Multimedia Memory Card, MMC. PIC MMC SPI. - 1 . MMC-, . LCD- , .

.. MMC--, , .

  .

, (/2). - ( - 5 ). 4777.

PIC18F458 4 . SPI RC2-RC5 MMC-. . MMC- +3.3 , +5, CD4050. RC3 - . MMC RC4.

LCD portB 4- . U2 (TLV2451) - -, . R5 +5 . . 1 , . U4 - +5 . D3, D4 (522) 5 -> 3.3 .

( )

:

  .

:
C1 0.1
C2,C3 30pF
C4 10uF
C5 10uF 16V
C6 1000uF 16V
C7,C8,C9 0.1uF
C10,C11 0.1uF
D1,D3,D4 1N4148
D2
D5 1N4007
J1 CON10AP
J2 16x2 LCD
J3,J4
J5 MMC
J6 +9V DC input
R1,R2,R5 10K
R3,R4 4.7k
U1 PIC18F458
U2 TLV2451
U3 4050
U4 LM2490
Y1 4MHz



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