ST72F324LJ2T5 STMicroelectronics, ST72F324LJ2T5 Datasheet - Page 51
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ST72F324LJ2T5
Manufacturer Part Number
ST72F324LJ2T5
Description
IC MCU 8BIT 8K FLASH 44-LQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST72F324LJ2T5.pdf
(154 pages)
Specifications of ST72F324LJ2T5
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
32
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
384 x 8
Voltage - Supply (vcc/vdd)
2.85 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-10°C ~ 85°C
Package / Case
44-LQFP
Processor Series
ST72F3x
Core
ST7
Data Bus Width
8 bit
Data Ram Size
384 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
32
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ST7232X-EVAL, ST7MDT20-DVP3, ST7MDT20J-EMU3, STX-RLINK
Minimum Operating Temperature
- 10 C
On-chip Adc
10 bit, 12 Channel
For Use With
497-6421 - BOARD EVAL DGTL BATT CHGR DESIGN497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
497-8242
ST72F324LJ2T5
ST72F324LJ2T5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
ST72F324LJ2T5
Manufacturer:
STMicroelectronics
Quantity:
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ST72F324LJ2T5
Manufacturer:
ST
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Part Number:
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MAIN CLOCK CONTROLLER WITH REAL TIME CLOCK (Cont’d)
10.2.5 Low Power Modes
10.2.6 Interrupts
The MCC/RTC interrupt event generates an inter-
rupt if the OIE bit of the MCCSR register is set and
the interrupt mask in the CC register is not active
(RIM instruction).
Note:
The MCC/RTC interrupt wakes up the MCU from
ACTIVE-HALT mode, not from HALT mode.
10.2.7 Register Description
MCC CONTROL/STATUS REGISTER (MCCSR)
Read / Write
Reset Value: 0000 0000 (00h
Bit 7 = MCO Main clock out selection
This bit enables the MCO alternate function on the
PF0 I/O port. It is set and cleared by software.
0: MCO alternate function disabled (I/O pin free for
1: MCO alternate function enabled (f
Note: To reduce power consumption, the MCO
function is not active in ACTIVE-HALT mode.
MCO CP1
WAIT
ACTIVE-
HALT
HALT
Time base overflow
event
general-purpose I/O)
port)
Mode
Interrupt Event
7
No effect on MCC/RTC peripheral.
MCC/RTC interrupt cause the device to exit
from WAIT mode.
No effect on MCC/RTC counter (OIE bit is
set), the registers are frozen.
MCC/RTC interrupt cause the device to exit
from ACTIVE-HALT mode.
MCC/RTC counter and registers are frozen.
MCC/RTC operation resumes when the
MCU is woken up by an interrupt with “exit
from HALT” capability.
CP0
SMS
Event
Flag
OIF
Description
TB1
Control
Enable
OIE
Bit
)
TB0
from
Wait
CPU
Exit
Yes
OIE
on I/O
No
from
Exit
Halt
OIF
0
1)
Bit 6:5 = CP[1:0] CPU clock prescaler
These bits select the CPU clock prescaler which is
applied in the different slow modes. Their action is
conditioned by the setting of the SMS bit. These
two bits are set and cleared by software
Bit 4 = SMS Slow mode select
This bit is set and cleared by software.
0: Normal mode. f
1: Slow mode. f
See
MAIN CLOCK CONTROLLER WITH REAL TIME
CLOCK AND BEEPER (MCC/RTC)
tails.
Bit 3:2 = TB[1:0] Time base control
These bits select the programmable divider time
base. They are set and cleared by software.
A modification of the time base is taken into ac-
count at the end of the current period (previously
set) to avoid an unwanted time shift. This allows to
use this time base as a real time clock.
Bit 1 = OIE Oscillator interrupt enable
This bit set and cleared by software.
0: Oscillator interrupt disabled
1: Oscillator interrupt enabled
This interrupt can be used to exit from ACTIVE-
HALT mode.
When this bit is set, calling the ST7 software HALT
instruction enters the ACTIVE-HALT power saving
mode
Prescaler
Counter
200000
16000
32000
80000
f
Section 8.2 SLOW MODE
CPU
.
in SLOW mode
f
f
f
f
OSC2
OSC2
OSC2
OSC2
f
OSC2
20ms
50ms
/ 16
CPU
4ms
8ms
/ 2
/ 4
/ 8
=4MHz f
CPU
Time Base
is given by CP1, CP0
=
f
OSC2
OSC2
10ms
25ms
2ms
4ms
=8MHz
CP1
and
0
0
1
1
ST72324Lxx
Section 10.2
for more de-
TB1
0
0
1
1
CP0
51/154
0
1
0
1
TB0
0
1
0
1
1