STR73xFxx
ARM7TDMI™ 32-bit MCU with Flash, 3x CAN,
4 UARTs, 20 timers, ADC, 12 comm. interfaces
Features
■
Core
– ARM7TDMI 32-bit RISC CPU
– 32 MIPS @ 36 MHz
Memories
– Up to 256 Kbytes Flash program memory
(10,000 cycles endurance, data retention
20 years @ 85° C)
– 16 Kbytes RAM
Clock, reset and supply management
– 4.5 - 5.5 V application supply and I/Os
– Embedded 1.8 V regulator for core supply
– Embedded oscillator running from external
4-8 MHz crystal or ceramic resonator
– Up to 36 MHz CPU frequency with internal
PLL
– 32 kHz or 2 MHz internal RC oscillator,
software configurable for fast startup and
backup clock
– Real-time clock for clock-calendar function
– Wake-up timer driven by internal RC for
wake-up from STOP mode
– 5 power saving modes: SLOW, WFI,
LPWFI, STOP and HALT modes
Nested interrupt controller
– Fast interrupt handling with multiple vectors
– 64 maskable IRQs with 64 vectors and 16
priority levels
– 2 maskable FIQ sources
– 16 external interrupts, up to 32 wake-up
lines
Up to 112 I/O ports
– 72/112 multifunctional bidirectional I/Os
TQFP100 14 x 14
TQFP144
20 x 20
LFBGA144 10 x 10 x 1.7
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■
■
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DMA
– 4 DMA controllers with 4 channels each
Timers
– 16-bit watchdog timer (WDG)
– 6/10 16-bit timers (TIM) each with: 2 input
captures, 2 output compares, PWM and
pulse counter modes
– 6 16-bit PWM modules (PWM)
– 3 16-bit timebase timers with 8-bit
prescalers
12 communications interfaces
– 2 I
2
C interfaces
– 4 UART asynchronous serial interfaces
– 3 BSPI synchronous serial interfaces
– Up to 3 CAN interfaces (2.0B Active)
10-bit A/D converter
– 12/16 channels
– Conversion time: min. 3 µs, range: 0 to 5V
Development tools support
– JTAG interface
Device summary
Part number
STR730FZ1, STR730FZ2,
STR731FV0, STR731FV1,
STR731FV2,
STR735FZ1, STR735FZ2,
STR736FV0, STR736FV1,
STR736FV2
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Table 1.
Reference
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STR73xFxx
June 2008
Rev 7
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www.st.com
52
Contents
STR73xFxx
Contents
1
Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1
On-chip peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1
3.2
Related documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.1
3.2.2
3.2.3
STR730F/STR735F (TQFP144) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
STR730F/STR735F (LFBGA144) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
STR731F/STR736F (TQFP100) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3
Memory mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4
Electrical parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1
Parameter conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
Minimum and maximum values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Typical values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Typical curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Loading capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2
4.3
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
Supply current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Clock and timing characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
EMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
I/O port pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10-bit ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5
Package characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.1
5.2
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
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STR73xFxx
Contents
6
7
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Known limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.1
7.2
Low power wait for interrupt mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
PLL free running mode at high temperature . . . . . . . . . . . . . . . . . . . . . . 50
8
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
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Scope
STR73xFxx
1
Scope
This datasheet provides the STR73x ordering information, mechanical and electrical device
characteristics.
For complete information on the STR73xF microcontroller memory, registers and
peripherals. please refer to the STR73x reference manual.
For information on programming, erasing and protection of the internal Flash memory
please refer to the STR7 Flash programming reference manual.
For information on the ARM7TDMI core please refer to the ARM7TDMI technical reference
manual.
1.1
Description
ARM core with embedded Flash & RAM
STR73xF family combines the high performance ARM7TDMI
™
CPU with an extensive range
of peripheral functions and enhanced I/O capabilities. All devices have on-chip high-speed
single voltage Flash memory and high-speed RAM. The STR73xF family has an embedded
ARM core and is therefore compatible with all ARM tools and software.
Extensive tools support
STMicroelectronics’ 32-bit, ARM core-based microcontrollers are supported by a complete
range of high-end and low-cost development tools to meet the needs of application
developers. This extensive line of hardware/software tools includes starter kits and complete
development packages all tailored for ST’s ARM core-based MCUs.
The range of development packages includes third-party solutions that come complete with
a graphical development environment and an in-circuit emulator/programmer featuring a
JTAG application interface. These support a range of embedded operating systems (OS),
while several royalty-free OSs are also available.
For more information, please refer to ST MCU site http://www.st.com/mcu
Figure 1
shows the general block diagram of the device family.
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STR73xFxx
Overview
2
Table 2.
Overview
Product overview
Features
Flash memory - bytes
RAM - bytes
Peripheral functions
CAN peripherals
Operating voltage
Operating temperature
Packages
T=TQFP144
20 x 20
H=LFBGA144
10 x10
STR730FZx
128K
256K
16 K
10 TIM timers, 112 I/Os,
32 wake-up lines, 16 ADC
3
0
STR735FZx
128K
256K
64K
STR731FVx
128K
256K
16 K
6 TIM timers, 72 I/Os, 18 wake-up lines,
12 ADC channels
3
4.5 to 5.5 V
-40 to +85°C/-40 to +105° C
T=TQFP100
14x14
0
64K
STR736FVx
128K
256K
Package choice: reduced pin-count TQFP100 or feature-rich 144-pin TQFP or LFBGA
The STR73xF family is available in 3 packages. The TQFP144 and LFBGA144 versions
have the full set of all features. The 100-pin version has fewer timers, I/Os and ADC
channels. Refer to the Device Summary on Page 1 for a comparison of the I/Os available on
each package.
The family includes versions with and without CAN.
High speed Flash memory
The Flash program memory is organized in 32-bit wide memory cells which can be used for
storing both code and data constants. It is accessed by CPU with zero wait states @ 36
MHz.
The STR7 embedded Flash memory can be programmed using in-circuit programming or
in-application programming.
The Flash memory endurance is 10K write/erase cycles and the data retention is 20 years
@ 85° C.
IAP (in-application programming):
IAP is the ability to re-program the Flash memory of a
microcontroller while the user program is running.
ICP (in-circuit programming):
ICP is the ability to program the Flash memory of a
microcontroller using JTAG protocol while the device is mounted on the user application
board.
The Flash memory can be protected against different types of unwanted access
(read/write/erase). There are two types of protection:
●
●
Sector write protection
Flash debug protection (locks JTAG access)
Flexible power management
To minimize power consumption, you can program the STR73xF to switch to SLOW, WFI
LPWFI, STOP or HALT modes depending on the current system activity in the application.
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