AT91SAM7S128 ATMEL [ATMEL Corporation], AT91SAM7S128 Datasheet - Page 3

• Manufacturer Part Number: AT91SAM7S128
• Manufacturer: ATMEL [ATMEL Corporation]

1. Description
2. Configuration Summary of the AT91SAM7S256, AT91SAM7S128,
Table 2-1.
Notes:
6175BS–ATARM–04-Nov-05
Device
AT91SAM7S256
AT91SAM7S128
AT91SAM7S64
AT91SAM7S321
AT91SAM7S32
AT91SAM7S64, AT91SAM7S321 and AT91SAM7S32
1. Manchester Encoder/Decoder, Fractional Baud Rate.
2. Full modem line support on USART1.
Configuration Summary
Flash
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, includ-
ing 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 secu-
rity 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 cellu-
lar phone. Their aggressive price point and high level of integration pushes their scope of use far
into the cost-sensitive, high-volume consumer market.
The AT91SAM7S256, AT91SAM7S128, AT91SAM7S64, AT91SAM7S321 and AT91SAM7S32
differ in memory size, peripheral set and package.
the five devices.
Except for the AT91SAM7S32, all other AT91SAM7S devices are package and pinout
compatible.
SRAM
64K byte
32K byte
16K byte
8K byte
8K byte
USB
Device
Port
1
1
1
1
not
present
USART
2
2
2
2
1
(1) (2)
(1) (2)
(2)
(2)
External
Interrupt
Source
2
2
2
2
1
AT91SAM7S Series Summary
PDC
Channels
11
11
11
11
9
Table 2-1
TC
Channels
3
3
3
3
2
summarizes the configuration of
I/O Lines
32
32
32
32
21
Package
LQFP 64
LQFP 64
LQFP 64
LQFP 64
LQFP 48
3