Rainbow Electronics AT90SCR050 - Manual (Page 3)

1
TPG0450X–SMS–09Nov09
AT90SCR050
Supply
Monitor
Vcc
XT
AL1
XT
AL2
Interrupt
Controller
Watchdog
48MHz
USB
Power
Management
SRAM
768 Bytes
ROM
16 KB
cpu
USB DMA
PORT D
USART
(in SPI mode)
PORT B
Pin Change IT
Pin Change IT
PORT C
LED port
8bit T/C 0 16bit T/C 1
Timers/Counters
USB device
Clock
Management
Smart Card Interface
Standard ISO7816
CPRES CCLKCRST D- CIO CC
4
CC
8
UC
ap
D+
PD1, TXD, PCINT17
PD0, RXD, PCINT16
PB0, T0, XCK, PCINT8
PC2, LED0
1. Block Diagram
Figure 1-1. Block Diagram