ST7FLI49MK1T6 STMicroelectronics, ST7FLI49MK1T6 Datasheet - Page 70

• Manufacturer Part Number: ST7FLI49MK1T6
• Description: MCU 8BIT SGL VOLT FLASH 32-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FLI49MK1T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST7FLI4x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: I2C
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 5
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 10 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

I/O ports
10.2.3
Caution:
70/188
Alternate functions
Many ST7s I/Os have one or more alternate functions. These may include output signals
from, or input signals to, on-chip
be input/output to which ports.
A signal coming from an on-chip peripheral can be output on an I/O. To do this, enable the
on-chip peripheral as an output (enable bit in the peripheral’s control register). The
peripheral configures the I/O as an output and takes priority over standard I/O programming.
The I/O’s state is readable by addressing the corresponding I/O data register.
Configuring an I/O as floating enables alternate function input. It is not recommended to
configure an I/O as pull-up as this will increase current consumption. Before using an I/O as
an alternate input, configure it without interrupt. Otherwise spurious interrupts can occur.
Configure an I/O as input floating for an on-chip peripheral signal which can be input and
output.
I/Os which can be configured as both an analog and digital alternate function need special
attention. The user must control the peripherals so that the signals do not arrive at the same
time on the same pin. If an external clock is used, only the clock alternate function should be
employed on that I/O pin and not the other alternate function.
Figure 34. I/O port general block diagram
REGISTER
ACCESS
EXTERNAL
INTERRUPT
REQUEST (ei
DDR SEL
OR SEL
DR SEL
DDR
OR
DR
x
)
SENSITIVITY
SELECTION
ALTERNATE
OUTPUT
From on-chip periphera
ALTERNATE
ENABLE
BIT
If implemented
1
0
Combinational
Logic
Doc ID 13562 Rev 3
l
peripherals.Table 2
1
0
FROM
OTHER
BITS
Note: Refer to the Port Configuration
table for device specific information.
N-BUFFER
PULL-UP
CONDITION
describes which peripheral signals can
SCHMITT
TRIGGER
CMOS
V
DD
P-BUFFER
(see table below)
To on-chip peripheral
V
DD
DIODES
(see table below)
PULL-UP
(see table below)
ALTERNATE
ANALOG
INPUT
INPUT
PAD
ST7LITE49M