Ricoh R5C841 Manual do Utilizador descarregar pdf (Página 52)

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R5C841 PCI-CardBus/IEEE 1394/SD Card/Memory Stick/xD/ExpressCard Data Sheet

12345 2004 REV.1.10 4-27

4.24 Internal Regulator

The R5C841 has an internal regulator, which converts the single 3.3V power into the power for

the internal core logic. REGEN# signal enables/disables an internal regulator. The following is the

recommended circuit diagram.

R5C841

0.01uF 0.1uF 0.01uF 10uF

0.01uF 0.01uF 0.47uF 0.47uF

0 ohm

open

short

from Regulator

(1.8V)

Regulator Disable Mode

VCC_RIN

VCC_ROUT

REGEN#

R5C841

0.01uF 0.1uF 0.01uF 10uF

0.01uF 0.01uF 0.47uF 0.47uF

open

100k ohm

open

from Regulator

(3.3V)

Regulator Enable Mode

VCC_RIN

VCC_ROUT

REGEN

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 72 73

PCI-CardBus/IEEE1394/SD Card 1
/MemoryStick/xD/ExpressCard 1
Data Sheet 1
12345 2004 REV. 1.10 2
1 OVERVIEW 3
12345 2004 REV. 1.10 1-2 4
2 BLOCK DIAGRAM 5
3 PIN DESCRIPTION 6
12345 2004 REV. 1.10 3-2 7
12345 2004 REV. 1.10 3-3 8
12345 2004 REV. 1.10 3-4 9
12345 2004 REV. 1.10 3-5 10
12345 2004 REV. 1.10 3-6 11
12345 2004 REV. 1.10 3-7 12
12345 2004 REV. 1.10 3-8 13
12345 2004 REV. 1.10 3-9 14
12345 2004 REV. 1.10 3-10 15
12345 2004 REV. 1.10 3-11 16
12345 2004 REV. 1.10 3-12 17
12345 2004 REV. 1.10 3-13 18
12345 2004 REV. 1.10 3-14 19
12345 2004 REV. 1.10 3-15 20
12345 2004 REV. 1.10 3-16 21
12345 2004 REV. 1.10 3-17 22
12345 2004 REV. 1.10 3-18 23
12345 2004 REV. 1.10 3-19 24
12345 2004 REV. 1.10 3-20 25
4 FUNCTIONAL DESCRIPTION 26
12345 2004 REV.1.10 4-2 27
12345 2004 REV.1.10 4-3 28
12345 2004 REV.1.10 4-4 29
12345 2004 REV.1.10 4-5 30
12345 2004 REV.1.10 4-6 31
Card Type Detection 32
12345 2004 REV.1.10 4-8 33
12345 2004 REV.1.10 4-9 34
12345 2004 REV.1.10 4-10 35
12345 2004 REV.1.10 4-11 36
12345 2004 REV.1.10 4-12 37
12345 2004 REV.1.10 4-13 38
12345 2004 REV.1.10 4-14 39
12345 2004 REV.1.10 4-15 40
12345 2004 REV.1.10 4-16 41
12345 2004 REV.1.10 4-17 42
12345 2004 REV.1.10 4-18 43
12345 2004 REV.1.10 4-19 44
12345 2004 REV.1.10 4-20 45
12345 2004 REV.1.10 4-21 46
12345 2004 REV.1.10 4-22 47
12345 2004 REV.1.10 4-23 48
12345 2004 REV.1.10 4-24 49
12345 2004 REV.1.10 4-25 50
12345 2004 REV.1.10 4-26 51
12345 2004 REV.1.10 4-27 52
EV.1.10 4-28 53
12345 2004 REV. 1.10 5-1 54
12345 2004 REV. 1.10 5-2 55
12345 2004 REV. 1.10 5-3 56
12345 2004 REV. 1.10 5-4 57
12345 2004 REV. 1.10 5-5 58
12345 2004 REV. 1.10 5-6 59
12345 2004 REV. 1.10 5-7 60
12345 2004 REV. 1.10 5-8 61
12345 2004 REV. 1.10 5-9 62
12345 2004 REV. 1.10 5-10 63
12345 2004 REV. 1.10 5-11 64
12345 2004 REV. 1.10 5-12 65
12345 2004 REV. 1.10 5-13 66
CardBus Reset Timing 67
12345 2004 REV. 1.10 5-15 68
12345 2004 REV. 1.10 5-16 69
Serial ROM if SDA,SCL timing 70
EV.1.10 72
REV.1.10 73

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