ST72334J2T3 datasheet(107/125 Pages) STMICROELECTRONICS

107 / 125 page

ST72334J/N, ST72314J/N, ST72124J

107/125

8.3 DC ELECTRICAL CHARACTERISTICS

Recommended operating conditions with TA=-40 to +85

oC, V

DD-VSS=5V unless otherwise specified.

8.4 GENERAL TIMING CHARACTERISTICS

Notes:

1) Unless otherwise specified, typical data are based on TA=25°C and VDD-VSS=5V. They are given only as design guide-

lines and are not tested.

2) CPU running with memory access, all I/O pins in input mode with a static value at VDD or VSS, all peripherals switched

off; clock input (OSC1) driven by external square wave.

3) All I/O pins in input mode with a static value at VDD or VSS, all peripherals switched off; clock input (OSC1) driven by

external square wave.

4) All I/O pins in input mode with a static value at VDD or VSS, LVD disabled.

5) Data based on characterization results, not tested in production.

∆t

INST is the number of tCPU to finish the current instruct ion execution.

Symbol

Parameter

Conditio ns

Min

Typ 1)

Max

Unit

IDD

Supply current in RUN mode 2)

fOSC = 4 MHz, fCPU = 2 MHz

fOSC = 8 MHz, fCPU = 4 MHz

fOSC = 16 MHz, fCPU = 8 MHz

TBD

Supply current in SLOW mode 2)

fOSC = 4 MHz, fCPU = 125 kHz

fOSC = 8 MHz, fCPU = 250 kHz

fOSC = 16 MHz, fCPU = 500 kHz

TBD

Supply current in WAIT mode 3)

fOSC = 4 MHz, fCPU = 2 MHz

fOSC = 8MHz, fCPU = 4 MHz

fOSC = 16MHz, fCPU = 8 MHz

TBD

Supply current in SLOW WAIT mode 3)

fOSC = 4 MHz, fCPU = 2 MHz

fOSC = 8 MHz, fCPU = 250 kHz

fOSC = 16 MHz, fCPU = 500 kHz

TBD

Supply current in HALT mode 4)

ILOAD = 0mA (current on I/Os)

TBD

µA

VRM

Data retention mode 5)

HALT mode

Symbol

Parameter

Conditi ons

Min

Typ

Max

Unit

tINST

Instruction time

CPU

tIRT

Interrupt reaction time

tIRT = ∆tINST +10

tCPU

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