STMicroelectronics ST52E440
8-BIT INTELLIGENT CONTROLLER UNIT ICU Timer/PWM
FEATURES
ST52T400 ST52x440/ST52x441 Temperature Range Operating Supply CPU Frequency -40 to + 85 °C 2.7 to 5.5 V Up to 20 MHz -40 to + 85 °C 4.5 to 5.5 V Up to 20 MHz Legend: Sales code: Memory type (t): Subfamily (nnn): Pin Count (c): Memory Size (m): Packages (p): Temperature (y): ST52tnnncmpy F=FLASH, T=OTP, E=EPROM 400, 410, 420, 430, 440, 441 Y=16 pins, F=20 pins, G=28 pins, K=32/34 pins, J=42/44 pins 0=1 Kb, 1=2 Kb, 2=4 Kb, 3=8 Kb B=PDIP, D=CDIP, M=PSO, T=TQFP 0=+25, 1=0 +70, 3=-40 +125, 5=-10 +85, 6=-40 +85, 7=-40 +105 2/94 TABLE OF CONTENTS ST52T400/T440/E440/T441 TABLE OF CONTENTS 1GENERAL DESCRIPTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 1.2 OperationalDESCRIPTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 1.2.1 Memory Programming Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .