AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 27

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

Figure 9-2. System Controller Block Diagram (SAM7S32/16)
PA0-PA20
PLLRC
XOUT
NRST
XIN
RCOSC
dbgu_irq
BOD
POR
OSC
periph_irq[2..14]
pmc_irq
PLL
wdt_irq
rstc_irq
en
pit_irq
rtt_irq
periph_nreset
periph_nreset
power_on_reset
periph_clk[2]
periph_nreset
periph_nreset
proc_nreset
cal
gpnvm[0]
dbgu_rxd
dbgu_rxd
SLCK
debug
debug
SLCK
SLCK
MAINCK
irq0
PLLCK
MCK
MCK
SLCK
fiq
int
idle
jtag_nreset
flash_poe
flash_wrdis
power_on_reset
gpnvm[1]
System Controller
bod_rst_en
Management
Real-Time
Advanced
Watchdog
Controller
Controller
Controller
Controller
Interrupt
Periodic
Interval
Debug
Power
Reset
Timer
Timer
Timer
PIO
Unit
wdt_fault
WDRPROC
int
dbgu_irq
force_ntrst
dbgu_txd
pit_irq
rtt_irq
wdt_irq
periph_nreset
proc_nreset
rstc_irq
periph_clk[2..14]
pck[0-2]
PCK
MCK
pmc_irq
idle
periph_irq{2]
irq0
fiq
dbgu_txd
Regulator
Controller
Voltage
Mode
SAM7S Series [DATASHEET]
power_on_reset
force_ntrst
periph_clk[4..14]
periph_nreset
periph_irq[4..14]
proc_nreset
in
out
enable
jtag_nreset
gpnvm[0..1]
proc_nreset
flash_wrdis
cal
flash_poe
debug
standby
PCK
MCK
security_bit
cal
nirq
nfiq
6175M–ATARM–26-Oct-12
Boundary Scan
TAP Controller
ARM7TDMI
Peripherals
Embedded
Embedded
Controller
Regulator
Memory
Voltage
Flash
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