AT91SAM7S321-AU Atmel, AT91SAM7S321-AU Datasheet - Page 28

• Manufacturer Part Number: AT91SAM7S321-AU
• Description: IC ARM7 MCU FLASH 32K 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S321-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, I2S, SPI, SSC, TWI, UART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 10 bit
• Operating Supply Voltage: 1.8 V to 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7S-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Controller Family/series: AT91SAM7xxxx
• No. Of I/o's: 32
• Ram Memory Size: 8KB
• Cpu Speed: 55MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 9-2.
28
PA0-PA20
AT91SAM7S Series Preliminary
PLLRC
NRST
XOUT
XIN
System Controller Block Diagram (AT91SAM7S32/16)
RCOSC
dbgu_irq
BOD
POR
OSC
periph_irq[2..14]
PLL
pmc_irq
rstc_irq
wdt_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
idle
int
flash_wrdis
jtag_nreset
flash_poe
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
power_on_reset
force_ntrst
periph_clk[4..14]
periph_nreset
periph_irq[4..14]
proc_nreset
in
out
enable
jtag_nreset
proc_nreset
gpnvm[0..1]
flash_wrdis
cal
flash_poe
debug
standby
PCK
MCK
security_bit
cal
nirq
nfiq
Boundary Scan
TAP Controller
ARM7TDMI
Peripherals
Embedded
Embedded
Controller
Regulator
Memory
Voltage
6175K–ATARM–30-Aug-10
Flash