AT91FR4042
器件描述：AT91 ARM Thumb Microcontrollers
器件厂商：ATMEL [ATMEL Corporation]
文件大小：195.24KB，共22页
Sponsor by e络盟器件资料摘要：
2648D–ATARM–03/04
AT91 ARM
®
Thumb
®
Microcontrollers
AT91FR4042
Features
Incorporates the ARM7TDMI
®
ARM
®
Thumb
®
Processor Core
– High-performance 32-bit RISC Architecture
– High-density 16-bit Instruction Set
– Leader in MIPS/Watt
– Embedded ICE (In-circuit Emulation)
256K Bytes of On-chip SRAM (2 Mbits)
– 32-bit Data Bus, Single-clock Cycle Access
256K Words 16-bit Flash Memory (4 Mbits)
– Single Voltage Read/Write
– Sector Erase Architecture
– Low-power Operation
– Data Polling, Toggle Bit and Ready/Busy End of Program Cycle Detection
– Reset Input for Device Initialization
– Factory-programmed AT91 Flash Uploader Software
Fully Programmable External Bus Interface (EBI)
– Up to Eight Chip Selects, Maximum External Address Space of 64M Bytes
– Software Programmable 8/16-bit External Data Bus
8-level Priority, Individually Maskable, Vectored Interrupt Controller
– Four External Interrupts, Including a High-priority Low-latency Interrupt Request
32 Programmable I/O Lines
3-channel 16-bit Timer/Counter
– Three External Clock Inputs, Two Multi-purpose I/O Pins per Channel
Two USARTs
– Two Dedicated Peripheral Data Controller (PDC) Channels per USART
Programmable Watchdog Timer
Advanced Power-saving Features
– CPU and Peripherals can be Deactivated Individually
Fully Static Operation:
– 0 Hz to 75 MHz Internal Frequency Range at VDDCORE = 1.65V, 85°C
2.7V to 3.6V I/O and Flash Operating Range, 1.65V to 1.95V Core Operating Range
-40°C to 85°C Temperature Range
Available in a 121-ball 10 x 10 x 1.2 mm BGA Package with 0.8 mm Ball Pitch
Description
The AT91FR4042 is a member of the Atmel AT91 16/32-bit Microcontroller family,
which is based on the ARM7TDMI processor core. The processor has a high-perfor-
mance 32-bit RISC architecture with a high-density 16-bit instruction set and very low
power consumption.
The AT91FR4042 ARM microcontroller features 2 Mbits of on-chip SRAM and 4 Mbits
of Flash memory in a single compact 121-ball BGA package. Its high level of integra-
tion and very small footprint make the device ideal for space-constrained applications.
The high-speed on-chip SRAM enables a performance of up to 63 MIPs and signifi-
cant power reduction over an external SRAM implementation.
The Flash memory may be programmed via the JTAG/ICE interface or the factory-pro-
grammed Flash Uploader using a single device supply, making the AT91FR4042
suitable for in-system programmable applications.
AT91 ARM
®
Thumb
®
Microcontrollers
AT91FR4042
Features
Incorporates the ARM7TDMI
®
ARM
®
Thumb
®
Processor Core
– High-performance 32-bit RISC Architecture
– High-density 16-bit Instruction Set
– Leader in MIPS/Watt
– Embedded ICE (In-circuit Emulation)
256K Bytes of On-chip SRAM (2 Mbits)
– 32-bit Data Bus, Single-clock Cycle Access
256K Words 16-bit Flash Memory (4 Mbits)
– Single Voltage Read/Write
– Sector Erase Architecture
– Low-power Operation
– Data Polling, Toggle Bit and Ready/Busy End of Program Cycle Detection
– Reset Input for Device Initialization
– Factory-programmed AT91 Flash Uploader Software
Fully Programmable External Bus Interface (EBI)
– Up to Eight Chip Selects, Maximum External Address Space of 64M Bytes
– Software Programmable 8/16-bit External Data Bus
8-level Priority, Individually Maskable, Vectored Interrupt Controller
– Four External Interrupts, Including a High-priority Low-latency Interrupt Request
32 Programmable I/O Lines
3-channel 16-bit Timer/Counter
– Three External Clock Inputs, Two Multi-purpose I/O Pins per Channel
Two USARTs
– Two Dedicated Peripheral Data Controller (PDC) Channels per USART
Programmable Watchdog Timer
Advanced Power-saving Features
– CPU and Peripherals can be Deactivated Individually
Fully Static Operation:
– 0 Hz to 75 MHz Internal Frequency Range at VDDCORE = 1.65V, 85°C
2.7V to 3.6V I/O and Flash Operating Range, 1.65V to 1.95V Core Operating Range
-40°C to 85°C Temperature Range
Available in a 121-ball 10 x 10 x 1.2 mm BGA Package with 0.8 mm Ball Pitch
Description
The AT91FR4042 is a member of the Atmel AT91 16/32-bit Microcontroller family,
which is based on the ARM7TDMI processor core. The processor has a high-perfor-
mance 32-bit RISC architecture with a high-density 16-bit instruction set and very low
power consumption.
The AT91FR4042 ARM microcontroller features 2 Mbits of on-chip SRAM and 4 Mbits
of Flash memory in a single compact 121-ball BGA package. Its high level of integra-
tion and very small footprint make the device ideal for space-constrained applications.
The high-speed on-chip SRAM enables a performance of up to 63 MIPs and signifi-
cant power reduction over an external SRAM implementation.
The Flash memory may be programmed via the JTAG/ICE interface or the factory-pro-
grammed Flash Uploader using a single device supply, making the AT91FR4042
suitable for in-system programmable applications.