ST72324 STMICROELECTRONICS [STMicroelectronics], ST72324 Datasheet - Page 7

• Manufacturer Part Number: ST72324
• Description: 5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

1 INTRODUCTION
The ST72F324 devices are members of the ST7
microcontroller family designed for the 5V operat-
ing range.
– The 32-pin devices are designed for mid-range
– The 42/44-pin devices target the same range of
For a description of the differences between
ST72F324 and ST72F324B devices refer to
tion 14.3 on page 152
All devices are based on a common industry-
standard 8-bit core, featuring an enhanced instruc-
Figure 1. Device Block Diagram
applications
applications requiring more than 24 I/O ports.
(6 bits on J devices)
(2 bits on K devices)
(6 bits on J devices)
(5 bits on K devices)
PF7:6,4,2:0
RESET
OSC1
OSC2
V
V
(2 bits)
PD5:0
PE1:0
AREF
V
V
V
SSA
DD
SS
PP
MCC/RTC/BEEP
8-BIT CORE
10-BIT ADC
CONTROL
TIMER A
PORT E
PORT D
PORT F
BEEP
OSC
ALU
LVD
SCI
Sec-
tion set and are available with FLASH program
memory.
Under software control, all devices can be placed
in WAIT, SLOW, ACTIVE-HALT or HALT mode,
reducing power consumption when the application
is in idle or stand-by state.
The enhanced instruction set and addressing
modes of the ST7 offer both power and flexibility to
software developers, enabling the design of highly
efficient and compact application code. In addition
to standard 8-bit data management, all ST7 micro-
controllers feature true bit manipulation, 8x8 un-
signed multiplication and indirect addressing
modes.
(384 - 1024 Bytes)
(8K - 32K Bytes)
WATCHDOG
PROGRAM
MEMORY
TIMER B
PORT C
PORT B
PORT A
RAM
SPI
(8 bits)
PC7:0
(5 bits on J devices)
(4 bits on K devices)
(5 bits on J devices)
(3 bits on K devices)
PA7:3
PB4:0
ST72324
3
7/163