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STR735FZ1 Schematic ( PDF Datasheet ) - STMicroelectronics
| Teilenummer | STR735FZ1 |
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| Beschreibung | 32-bit MCU | |
| Hersteller | STMicroelectronics | |
| Logo |  |
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Gesamt 30 Seiten 
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
LFBGA144 10 x 10 x 1.7
TQFP144
20 x 20
■ 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 I2C 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
Table 1. Device summary
Reference
Part number
STR73xFxx
STR730FZ1, STR730FZ2,
STR731FV0, STR731FV1,
STR731FV2,
STR735FZ1, STR735FZ2,
STR736FV0, STR736FV1,
STR736FV2
June 2008
Rev 7
1/52
www.st.com
52
 
Overview
STR73xFxx
Note:
Flexible clock control
Two clock sources are used to drive the microcontroller, a main clock driven by an external
crystal or ceramic resonator and an internal backup RC oscillator that operates at 2 MHz or
32 kHz. The embedded PLL can be configured to generate an internal system clock of up to
36 MHz. The PLL output frequency can be programmed using a wide selection of multipliers
and dividers.
Voltage regulators
The STR73xF requires an external 4.5 to 5.5 V power supply. There are two internal Voltage
Regulators for generating the 1.8 V power supply needed by the core and peripherals. The
main VR is switched off and the Low Power VR switched on when the application puts the
STR73xF in Low Power Wait for Interrupt (LPWFI) mode.
Low voltage detectors
The voltage regulator and Flash modules each have an embedded LVD that monitors the
internal 1.8 V supply. If the voltage drops below a certain threshold, the LVD will reset the
STR73xF.
An external power-on reset must be provided ensure the microcontroller starts-up correctly.
2.1 On-chip peripherals
CAN interfaces
The three CAN modules are compliant with the CAN specification V2.0 part B (active). The
bit rate can be programmed up to 1 MBaud. These are not available in the STR735 and
STR736.
DMA
4 DMA controllers, each with 4 data streams manage memory to memory, peripheral to
peripheral, peripheral to memory and memory to peripheral transfers. The DMA requests
are connected to TIM timers, BSPI0, BSPI1, BSPI2 and ADC. One of the streams can be
configured to be triggered by a software request, independently from any peripheral activity.
16-bit timers (TIM)
Each of the ten timers (six in 100-pin devices) have a 16-bit free-running counter with 7-bit
prescaler, up to two input capture/output compare functions, a pulse counter function, and a
PWM channel with selectable frequency. This provides a total of 16 independent PWMs (12
in 100-pin devices) when added with the PWM modules (see next paragraph).
PWM modules (PWM)
The six 16-bit PWM modules have independently programmable periods and duty-cycles,
with 5+3 bit prescaler factor.
Timebase timers (TB)
The three 16-bit timebase timers with 8-bit prescaler for general purpose time triggering
operations.
Real-time clock (RTC)
The RTC provides a set of continuously running counters driven by separate clock signal
derived from the main oscillator. The RTC can be used as a general timebase or
6/52
6 Page 
Block diagram
STR73xFxx
3.2.2 STR730F/STR735F (LFBGA144)
Table 3. STR730F/STR735F LFBGA ball connections
Ball Name Ball Name Ball Name Ball
Name
A1 P0.0 / OCMPB2 B1 P0.4 / OCMPA5 C1
A2 P6.10 / WUP8 B2 P0.1 / OCMPA2 C2
A3 P6.9 / TDO0 B3 P6.15 / WUP9 C3
A4 P6.12 / MOSI0 B4 P6.13 / SCKO / WUP11 C4
A5 P6.6 / WUP6 B5 P6.7 / WUP7 C5
A6 V18 B6 P6.2 / WUP2 / RDI3 C6
A7 P5.15 / INT13 B7 P5.14 / INT12 C7
A8 P5.8 / INT6 B8 P5.9 / INT7 C8
A9 P5.2 / OCMPA9 B9 P5.3 / OCMPB9 C9
A10 P5.7 / MISO2 B10 P5.0 / MOSI1 C10
A11 P5.6 / MOSI2 B11 P4.15 / SCK1 / WUP22 C11
A12 P5.11 / TDO2 / INT9 B12
P4.8 / OCMPA8
C12
E1 P0.8 / OCMPA6 F1 VDD G1
E2 P0.9 / OCMPB6 F2 P0.13 / ICAPB3 G2
E3 P0.10 / OCMPA7 F3 P0.14 / OCMPB3 G3
E4 P0.11 / OCMPB7 F4 P0.15 / OCMPA3 G4
E5 P0.12 / ICAPA3 F5 P1.0 / OCMPA4 G5
E6 P6.5 / WUP5 F6 P1.1 / OCMPB4 G6
E7 P6.0 / WUP0 F7
E8 P5.13 / INT11 F8
E9
P4.10 / ICAPA6 /
WUP20
F9
E10 P4.9 / ICAPB6 F10
E11 P4.6 / SCL1 / WUP19 F11
E12
P4.5 / WUP18 /
CAN2RX 1)
F12
P6.1 / WUP1
P4.4 / CAN2TX1)
P4.3 / ICAPB8 /
WUP27
P4.2 / ICAPA8 /
WUP26
P4.1 / ICAPB7 /
WUP25
JTDI
G7
G8
G9
G10
G11
G12
J1 P1.4 K1 P1.6 / OCMPB1 L1
J2
P1.11 / ICAPA0 /
WUP29
K2
J3
P1.12 / ICAPA1 /
WUP30
K3
J4 P2.7 / PWM5 K4
J5 VDD K5
J6 P2.9 / RDI1 / WUP14 K6
J7 P2.14 / SCL 0 / WUP15 K7
J8 P3.1 / AIN1 K8
J9 P3.13 / AIN13 / INT3 K9
J10 P3.12 / AIN12 / INT2 K10
J11 P3.9 / AIN9 K11
J12 P3.8 / AIN8 K12
P1.13 / ICAPB1 /
WUP31
P2.1 / CAN1RX1) /
WUP13
P2.6 / PWM4
M1
P2.8 / TDO1
P2.13 / INT15
P3.0 / AIN0
P3.4 / AIN4
VDDA
VSSA
P3.11 / AIN11
L2
L3
L4
L5
L6
L7
L8
L9
L10
L11
L12
P0.5 / OCMPB5
P0.2 / ICAPA2
P0.3 / ICAPB2
P6.14 / SSO
P6.8 / RDI0 / WUP10
P6.3 / WUP3
VSS
P5.10 / INT8 / RDI2
P5.4 / SS2
P5.1 / MISO1
P4.14 / SS1
P4.7 / SDA1
VSS
P1.2 / ICAPB4
P1.3 / ICAPA4
VSS
P1.5
P2.11 / WUP17
P4.0 / ICAPA7 /
WUP24
VDD
VSS
JTDO
JTCK
nJTRST
P1.7 / OCMPA1
P1.15 / CAN0TX1)
P2.0 / PWM0
P2.3 / PWM1
RSTIN
VSS
P2.12 / INT14
VBIAS
P3.3 / AIN3
P3.5 / AIN5
P3.7 / AIN7
P3.10 / AIN10
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
H1
H2
H3
H4
H5
H6
H7
H8
H9
H10
H11
H12
M1
M2
M3
M4
M5
M6
M7
M8
M9
M10
M11
M12
VSS
VDD
P0.6 / ICAPA5
P0.7 /ICAPB5
P6.11 / MISO0
P6.4 / WUP4 /TDO3
VDD
P5.12 / INT10
P5.5 / SCK2 / WUP23
P4.13 / ICAPB9
P4.12 / ICAPA9 / WUP21
P4.11 / OCMPB8
VDD
P1.8 / OCMPA0 / INT0
P1.9 / OCMPB0 / INT1
P1.10 / ICAPB0 / WUP28
XTAL2
P2.10 / WUP16
P2.15 / SDA 0
JTMS
VSS
VDD
P3.15 / AIN15 / INT5
P3.14 / AIN14 / INT4
P1.14 / CAN0RX1) /
WUP12
P2.4 / PWM2
P2.5 / PWM3
P2.2 / CAN1TX1)
M0
VSS
XTAL1
TST
P3.2 / AIN2
VSS
VDD
P3.6 / AIN6
Note: CAN alternate functions not available on STR735F.
12/52
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