ST7232AJ2 STMicroelectronics, ST7232AJ2 Datasheet - Page 7

• Manufacturer Part Number: ST7232AJ2
• Description: 8-BIT MCU WITH 8K FLASH/ROM, ADC, 4 TIMERS, SPI, SCI INTERFACE
• Manufacturer: STMicroelectronics

Specifications of ST7232AJ2

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators and bypass for external clock
• Four Power Saving Modes: Halt, Active-Halt, Wait and Slow
• Main Clock Controller With: Real time base, Beep and Clock-out capabilities
• Two 16-bit Timers With: 2 input captures, 2 output compares, PWM and pulse generator modes

1 INTRODUCTION
The ST72F32A and ST7232A devices are mem-
bers of the ST7 microcontroller family designed for
the 5V operating range.
The 32 and 44-pin devices are designed for mid-
range applications
All devices are based on a common industry-
standard 8-bit core, featuring an enhanced instruc-
tion set and are available with FLASH or ROM pro-
gram memory.
Figure 1. Device Block Diagram
RESET
OSC1
OSC2
V
V
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
SCI
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.
WATCHDOG
PROGRAM
(384 Bytes)
(8K Bytes)
MEMORY
TIMER B
PORT C
PORT B
PORT A
RAM
SPI
ST7232A
3
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