AT91FR4042_02 Datasheet, PDF (1/21 Pages) ATMEL Corporation – AT91 ARM Thumb Microcontrollers

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, 90 ns Access Time
– Sector Erase Architecture
– Fast Word Program Time of 30 µs (Typical); Fast Sector Erase Time of 10 sec. (Max)
– Low-power Operation: 25 mA Active (Read Current, f = 5 MHz, I_OUT = 0 mA Typical),
50 µA Standby (Standby Current CMOS: NCSF = V_DDIO - 0.3V to V_DDIO Maximum)
– 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 8 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
– 4 External Interrupts, Including a High-priority Low-latency Interrupt Request
• 32 Programmable I/O Lines
• 3-channel 16-bit Timer/Counter
– 3 External Clock Inputs, 2 Multi-purpose I/O Pins per Channel
• 2 USARTs
– 2 Dedicated Peripheral Data Controller (PDC) Channels per USART
• Programmable Watchdog Timer
• Advanced Power-saving Features
– CPU and Peripherals Can be De-activated Individually
• Fully Static Operation:
– 0 Hz to 70 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
AT91 ARM^®
Thumb^®
Microcontrollers
AT91FR4042
Preliminary
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 inplementation.
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.
Rev. 2648B–ATARM–12/02
Preliminary
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