ST7LITE25F2 STMicroelectronics, ST7LITE25F2 Datasheet - Page 49

• Manufacturer Part Number: ST7LITE25F2
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7LITE25F2

• 8 Kbytes Single Voltage Flash Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• Clock Sources: Internal 1% RC oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Wait and Slow, Auto Wake Up From Halt

I/O PORTS (Cont’d)
Table 9. I/O configurations
Notes:
1. When the I/O port is in input configuration and the associated alternate function is enabled as an output,
2. When the I/O port is in output configuration and the associated alternate function is enabled as an input,
3. For true open drain, these elements are not implemented.
reading the DR register will read the alternate function output status.
the alternate function reads the pin status given by the DR register content.
PAD
PAD
PAD
V
V
DD
R
DD
R
R
V
PU
PU
PU
DD
NOTE 3
NOTE 3
NOTE 3
PULL-UP
CONDITION
Hardware Configuration
INTERRUPT
CONDITION
OTHER
FROM
PINS
COMBINATIONAL
ALTERNATE
REGISTER
ENABLE
BIT
DR
LOGIC
DR REGISTER ACCESS
REGISTER
REGISTER
DR
DR
From on-chip periphera
POLARITY
SELECTION
DR REGISTER ACCESS
DR REGISTER ACCESS
W
R
ALTERNATE
OUTPUT
R/W
ANALOG INPUT
EXTERNAL INTERRUPT
SOURCE (ei
R/W
ALTERNATE INPUT
To on-chip peripheral
DATA BUS
DATA BUS
l
ST7LITE2
DATA BUS
x
)
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