ST72F324J4B6 STMicroelectronics, ST72F324J4B6 Datasheet - Page 85
![IC MCU 8BIT 16K FLASH 42-PDIP](/photos/7/28/72890/497-42-dip__600_mil__series_sml.jpg)
ST72F324J4B6
Manufacturer Part Number
ST72F324J4B6
Description
IC MCU 8BIT 16K FLASH 42-PDIP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST72F324J2T6.pdf
(164 pages)
Specifications of ST72F324J4B6
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
3.8 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
42-DIP (0.600", 15.24mm)
Processor Series
ST72F3x
Core
ST7
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
32
Number Of Timers
4 bit
Operating Supply Voltage
3.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Development Tools By Supplier
ST7F521-IND/USB, ST7232X-EVAL, ST7MDT20-DVP3, ST7MDT20J-EMU3, STX-RLINK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
For Use With
497-6421 - BOARD EVAL DGTL BATT CHGR DESIGN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ST72F324J4B6
Manufacturer:
ST
Quantity:
20 000
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SERIAL PERIPHERAL INTERFACE (Cont’d)
10.4.5.4 Single Master Systems
A typical single master system may be configured,
using an MCU as the master and four MCUs as
slaves (see
The master device selects the individual slave de-
vices by using four pins of a parallel port to control
the four SS pins of the slave devices.
The SS pins are pulled high during reset since the
master device ports will be forced to be inputs at
that time, thus disabling the slave devices.
Figure 52. Single Master / Multiple Slave Configuration
5V
Figure
MOSI
SS
SCK
SCK
MOSI
MCU
Master
Slave
MCU
52).
MISO
MISO
SS
MOSI
SCK
Slave
MCU
MISO
SS
Note: To prevent a bus conflict on the MISO line
the master allows only one active slave device
during a transmission.
For more security, the slave device may respond
to the master with the received data byte. Then the
master will receive the previous byte back from the
slave device if all MISO and MOSI pins are con-
nected and the slave has not written to its SPIDR
register.
Other transmission security methods can use
ports for handshake lines or data bytes with com-
mand fields.
MOSI
SCK
MCU
Slave
MISO
SS
ST72324Jx ST72324Kx
MOSI
SCK
Slave
MCU
MISO
SS
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