AT83C5122 Просмотр технического описания (PDF) - Atmel Corporation
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AT83C5122 Datasheet PDF : 208 Pages
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USB Keyboard with Smart Card Reader Using AT83R5122, AT8xC5122/AT89C5122DS
VCC
VCC
USB VCC
VBUS
D+
D-
GND
GND
Keyboard Matrix
R4
C3
VCC
C9
GND
C8
GND
C1
GND
VCC
EA/VCC (1)
AVCC
LEDx
VCC
10mA Max
C4
DVCC
GND
R1
VREF
LI
CVCC
VCC
L1
C6 C7
R2
D+
R3
D-
C0
C1
C2
C3
C4
C5
C6
C7
KB0
KB1
KB2
KB3
KB4
KB5
KB6
KB7
P3[0-1,3-4]
P2[0-7]
P0[0-7]
CVSS
CRST
CCLK
CC4
CIO
CC8
CPRES
GND
180Ohms
15pF
R5
VCC
CRST1
CCLK1
CIO1
GND
Smart Card
C1 VCC
C5 GND
C2
RST
C3
C4
C7
C8
CLK
C4
I/O
C8
S1 S1
S2
GND
Alternate Card
C1
C2
C3
VCC
RST
CLK
C7
C5
I/O
GND
PLLF
RST
C10
Optional
Capacitor
AVSS VSS XTAL1 XTAL2
C2
GND
GND
GND
Q1
Notes :
1 - Pin configuration depends on product versions
16 AT83R5122, AT8xC5122/23
4202F–SCR–07/2008
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