AT91SAM7S321-AU Atmel, AT91SAM7S321-AU Datasheet - Page 3

• 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

1. Description
1.1
Table 1-1.
Notes:
6175G–ATARM–22-Nov-06
Device
AT91SAM7S512
AT91SAM7S256
AT91SAM7S128
AT91SAM7S64
AT91SAM7S321
AT91SAM7S32
Configuration Summary of the AT91SAM7S512, AT91SAM7S256, AT91SAM7S128,
AT91SAM7S64, AT91SAM7S321 and AT91SAM7S32
1. Fractional Baud Rate.
2. Full modem line support on USART1.
Configuration Summary
Flash
512K byte
256K byte
128K byte
64K byte
32K byte
32K byte
Atmel’s AT91SAM7S is a series of low pincount Flash microcontrollers based on the 32-bit
ARM RISC processor. It features a high-speed Flash and an SRAM, a large set of peripherals,
including a USB 2.0 device (except for the AT91SAM7S32), and a complete set of system
functions minimizing the number of external components. The device is an ideal migration
path for 8-bit microcontroller users looking for additional performance and extended memory.
The embedded Flash memory can be programmed in-system via the JTAG-ICE interface or
via a parallel interface on a production programmer prior to mounting. Built-in lock bits and a
security bit protect the firmware from accidental overwrite and preserves its confidentiality.
The AT91SAM7S Series system controller includes a reset controller capable of managing the
power-on sequence of the microcontroller and the complete system. Correct device operation
can be monitored by a built-in brownout detector and a watchdog running off an integrated RC
oscillator.
The AT91SAM7S Series are general-purpose microcontrollers. Their integrated USB Device
port makes them ideal devices for peripheral applications requiring connectivity to a PC or cel-
lular phone. Their aggressive price point and high level of integration pushes their scope of
use far into the cost-sensitive, high-volume consumer market.
Note:
The AT91SAM7S512, AT91SAM7S256, AT91SAM7S128, AT91SAM7S64, AT91SAM7S321
and AT91SAM7S32 differ in memory size, peripheral set and package.
the configuration of the six devices.
Except for the AT91SAM7S32, all other AT91SAM7S devices are package and pinout
compatible.
Flash
Organization SRAM
dual plane
single plane
single plane
single plane
single plane
single plane
References to the AT91SAM7S512 in this document concern a future product under
development.
64K byte
64K byte
32K byte
8K byte
8K byte
16K byte
USB
Device
Port
1
1
1
1
1
not
present
AT91SAM7S Series Preliminary
USART
2
2
1
2
2
2
(1) (2)
(1) (2)
(1) (2)
(2)
(2)
External
Interrupt
Source
2
2
2
2
2
1
PDC
Channels
11
11
11
11
11
9
TC
Channels
3
3
3
3
3
2
Table 1-1
I/O
Lines
32
32
32
32
32
21
summarizes
Package
LQFP/
QFN 64
LQFP/
QFN 64
LQFP/
QFN 64
LQFP/
QFN 64
LQFP/
QFN 64
LQFP/
QFN 48
3