ST72334N2T6 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72334N2T6

8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES

STMicroelectronics 

Table of Contents

1 PREAMBLE: ST72C334 VERSUS ST72E331 SPECIFICATION

New Features available on the ST72C334

s 8 or 16K FLASH/ROM with In-Situ Programming and Read-out protection

s New ADC with a better accuracy and conversion time

s New configurable Clock, Reset and Supply system

s New power saving mode with real time base: Active Halt

s Beep capability on PF1

s New interrupt source: Clock security system (CSS) or Main clock controller (MCC)

ST72C334 I/O Confuguration and Pinout

s Same pinout as ST72E331

s PA6 and PA7 are true open drain I/O ports without pull-up (same as ST72E331)

s PA3, PB3, PB4 and PF2 have no pull-up configuration (all IOs present on TQFP44)

s 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 pad without high sink

capabilities. PA4 and PA5 were 20mA true open drain.

New Memory Locations in ST72C334

s 20h: MISCR register becomes MISCR1 register (naming change)

s 29h: new control/status register for the MCC module

s 2Bh: new control/status register for the Clock, Reset and Supply control. This register replaces the

WDGSR register keeping the WDOGF flag compatibility.

s 40h: new MISCR2 register

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