st72324bk STMicroelectronics, st72324bk Datasheet - Page 11

• Manufacturer Part Number: st72324bk
• Description: 3 V/5 V Range 8-bit Mcu With 4/8 Kbyte Rom, 10-bit Adc, Four Timers And Spi
• Manufacturer: STMicroelectronics

ST72323 ST72323L
1
Description
ST72323L and ST72323 ROM devices are members of the ST7 microcontroller family
designed for the 3 V and 5 V operating range.
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All devices are based on a common industry-standard 8-bit core, featuring an enhanced
instruction set and are available with ROM program memory. The ST7 family architecture
offers both power and flexibility to software developers, enabling the design of highly
efficient and compact application code.
The on-chip peripherals include an A/D converter, two general purpose timers and an SPI
interface. For power economy, the microcontroller can switch dynamically into, Slow, Wait,
Active Halt or Halt mode when the application is in idle or stand-by state.
Typical applications include consumer, home, office and industrial products.
Figure 1.
(6 bits on J/C devices)
(2 bits on K devices)
(6 bits on J/C devices)
(5 bits on K devices)
The 32/34-pin (K) devices are designed for mid-range applications
The 42/44/48-pin (J and C) devices target the same range of applications requiring
more than 24 I/O ports.
PF7:6,4,2:0
ICCSEL
RESET
OSC1
OSC2
V
PD5:0
V
(2 bits)
AREF
PE1:0
V
V
SSA
DD
SS
Device block diagram
MCC/RTC/BEEP
10-bit ADC
8-bit core
Timer A
Control
Port E
Port D
Port F
Beep
OSC
ALU
(4/8 Kbytes)
(384 bytes)
MEMORY
Watchdog
Program
Timer B
Port C
Port B
Port A
RAM
SPI
(8 bits)
PC7:0
(5 bits on J/C devices)
(4 bits on K devices)
PA7:3
PB4:0
(5 bits on J/C devices)
(3 bits on K devices)
Description
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