ST72334N4 STMicroelectronics, ST72334N4 Datasheet - Page 5

• Manufacturer Part Number: ST72334N4
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY,ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
• Manufacturer: STMicroelectronics

Specifications of ST72334N4

• Clock Sources: crystal/ceramic resonator oscillators or RC oscillators, external clock, backup Clock Security System
• 4 Power Saving Modes: Halt, Active-Halt, Wait and Slow
• Two 16-bit Timers With: 2 input captures (only one on timer A), 2 output compares (only one on timer A), External clock input on timer A, PWM and Pulse generator modes

1 PREAMBLE: ST72C334 VERSUS ST72E331 SPECIFICATION
New Features available on the ST72C334
ST72C334 I/O Configuration and Pinout
8
Programming and Read-out protection
New ADC with a better accuracy and conversion
time
New configurable Clock, Reset and Supply
system
New power saving mode with real time base:
Active Halt
Beep capability on PF1
New interrupt source: Clock security system
(CSS) or Main clock controller (MCC)
Same pinout as ST72E331
PA6 and PA7 are true open drain I/O ports
without pull-up (same as ST72E331)
PA3, PB3, PB4 and PF2 have no pull-up
configuration (all I/Os present on TQFP44)
PA5:4, PC3:2, PE7:4 and PF7:6 have high sink
capabilities (20mA on N-buffer, 2mA on P-buffer
and pull-up). On the ST72E331, all these pads
(except PA5:4) were 2mA push-pull pads
without high sink capabilities. PA4 and PA5
were 20mA true open drains.
or
16K
FLASH/ROM
with
In-Situ
New Memory Locations in ST72C334
20h: MISCR register becomes MISCR1 register
(naming change)
29h: new control/status register for the MCC
module
2Bh: new control/status register for the Clock,
Reset and Supply control. This register replaces
the WDGSR register keeping the WDOGF flag
compatibility.
40h: new MISCR2 register
ST72334J/N, ST72314J/N, ST72124J
5/153