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AT90SCR100 데이터시트(PDF) 400 Page - ATMEL Corporation

부품명 AT90SCR100
상세설명  8-bit Microcontroller for Smart Card Readers
PDF  433 Pages
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90SCR100 데이터시트(HTML) 400 Page - ATMEL Corporation

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TPR0327AY–SMS–30Jan09
AT90SCR100
30.2
Typical Application
Table 30-2.
External Components, Bill Of Materials
Reference
Description
Value
Comment
R1, R2
R3, R4
USB Pad Serial Resistor
22
Ω +/-10%
-
R5
CIO Pull-up Resistor
10K
Ω +/-10%
(Optional) Can be required for high speed communication
Rs
DCDC Sense Resistor
200m
Ω +/-2%
125mW
Current Sensing: Overcurrent detection
C1
Power Supply Decoupling
capacitor
4.7μF +/-10%
Maximum application capacitance allowed by USB
standard is 10μF
C2
Power Supply Filter capacitor
100nF
-
C3
Internal Core Regulator
Decoupling capacitor
2.2μF +/-10%
Used for internal regulator stability
C4
Internal USB Regulator
Decoupling capacitor
2.2μF +/-10%
Used for internal regulator stability
C5, C6
PLL Filter capacitors
47pF +/-10%
-
C7, C8
RTC Filter capacitors
22pF +/-10%
Only if Real Time Counter is used.
C9
DCDC Decoupling Capacitor
10μF +/-10%
esr=100m
Ω
Tantalum capacitor is needed
Recommended: AVX: TPSE106-035-200
L1
DCDC inductance
6.8μH
esr=20.2m
Ω
Recommended: Gowanda: SMP3316LP-681M
Q1
Crystal
8.0 Mhz
Q2
Real Time Crystal
3.768 Mhz
Only if Real Time Counter is used
Rled/Dled
LED mechanism
--
Depends on the configuration of the Led Controller
Vss
C1
3.3V
C2
R1
R2
C3
C4
Vss2
Vss3
AVss
CVcc
CVsense
CC4
CC8
CIO
CVss
RST
D+
D-
D+
D-
RESET
: As DCDC generates noise, we encourage the use of
another supply power than global Vcc, if possible.
Vcc4
Vcc3
Vcc2
Vcc1
Vdcdc
DVcc
XTAL1
XTAL2
UCAP
Vcc
AT90SCR100
Host
C5
C6
Q1
3.3V
R3
R4
R5
Rs
Rled
Dled
RTC1
RTC2
Led0
Li
Lo
C7
C8
L1
Q2
C9
Card Vcc
Card C4/D+
Card C8/D-
Card IO
(1)
(1)
3.3V



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