STR720 Datasheet, PDF (1/401 Pages) STMicroelectronics – ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES

STR720
ARM720T^™ 16/32-BIT MCU WITH 16K RAM, USB, CAN,
3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES
PRELIMINARY DATA
■ ARM720T MCU
– 32-bit RISC MCU with 3-stage pipeline.
– Max. CPU frequency 70 MHz
– Fully instructions compatible with the
ARM7 family of processors
– 8 KByte Instruction + Data cache, 4-way
set-associative
– Write buffer de-coupling CPU from system
memory during write operations
– MMU for virtual to physical address
mapping and memory protection
■ Memories
– 16 KBytes Program RAM Memory
– External SDRAM Interface for up to 128
Mbytes SDRAM
– External Memory Interface (EMI) for up to 8
Mbytes SRAM, Flash, ROM.
– ATAPI interface supporting PIO4 mode
■ Nested interrupt controller
– Fast interrupt handling with multiple vectors
– 32 vectors with 16 IRQ priority levels
– 2 maskable FIQ sources
■ Clock, Reset and Supply Management
– Internal system clocks generated by fully
internal PLL
– Power management providing different
operating modes: RUN, SLOW, STOP,
STANDBY.
■ 34 I/O ports
– 34 multifunctional bidirectional I/O lines
– 5 ports with interrupt capability
■ 3 Timers
– Two 16-bit programmable Timer modules
with prescaler (f_APB divided by 1 to 256)
PQFP208
28 x 28 x 3.4mm
driven from internal selectable clock
(oscillator or CPU clock), output compare
and input capture functions.
– 16-bit Watchdog Timer with 8-bit prescaler
■ 6 Communications Interfaces
– USB v 2.0 Full Speed (12Mbit/s) Device
Function with Suspend and Resume
support
– CAN module compliant with the CAN
specification V2.0 part B (active).
– Two High-Speed Universal Asynchronous
Receiver Transmitter (UART) for full-duplex
asynchronous communication.
– Two Buffered Serial Peripheral Interfaces
(BSPI) for full-duplex, synchronous,
communications with external devices,
master or slave operation.
■ A/D Converter
– Sigma Delta Analog/Digital Converter with
11.5-bit ENOB resolution supporting 4
multiplexed inputs at up to 950 Hz sampling
rate.
■ Development Tools Support
– 5-pin JTAG port (IEEE 1149.1 Standard)
Table 1. Device Summary
Features
Boot ROM - bytes
STR720RBQ6
STR720RXH6
4K
Program RAM - bytes
16K
Operating Voltage
3.0 to 3.6V for I/Os and A/D, 1.8V for core and backup block
Operating Temperature
-40 to +85°C
Package
PQFP208 28x28x3.4
BGA (contact marketing for details)
Rev. 4.0
December 2004
1/401
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. ₁