ST7FLITE39F2U6 STMicroelectronics, ST7FLITE39F2U6 Datasheet - Page 13

• Manufacturer Part Number: ST7FLITE39F2U6
• Description: IC MCU 8BIT 8K FLASH 20QFN
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FLITE39F2U6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: LINSCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-QFN
• For Use With: 497-8406 - BOARD STF20NM50FD/STF7LITE39BF2497-8403 - BOARD DEMO STCC08 AC SW DETECTOR497-6398 - BOARD EVAL ST7FLITE39/STM1403497-5858 - EVAL BOARD PLAYBACK ST7FLITE497-5514 - EVAL BOARD THERMO CONTROL REFRIG497-5049 - KIT STARTER RAISONANCE ST7FLITE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5635

FLASH PROGRAM MEMORY (Cont’d)
4.4 ICC INTERFACE
ICP needs a minimum of 4 and up to 6 pins to be
connected to the programming tool. These pins
are:
Figure 5. Typical ICC Interface
Notes:
1. If the ICCCLK or ICCDATA pins are only used
as outputs in the application, no signal isolation is
necessary. As soon as the Programming Tool is
plugged to the board, even if an ICC session is not
in progress, the ICCCLK and ICCDATA pins are
not available for the application. If they are used as
inputs by the application, isolation such as a serial
resistor has to be implemented if another device
forces the signal. Refer to the Programming Tool
documentation for recommended resistor values.
2. During the ICP session, the programming tool
must control the RESET pin. This can lead to con-
flicts between the programming tool and the appli-
cation reset circuit if it drives more than 5mA at
high level (push pull output or pull-up resistor<1K).
A schottky diode can be used to isolate the appli-
cation RESET circuit in this case. When using a
classical RC network with R>1K or a reset man-
agement IC with open drain output and pull-up re-
sistor>1K, no additional components are needed.
In all cases the user must ensure that no external
reset is generated by the application during the
ICC session.
3. The use of Pin 7 of the ICC connector depends
on the Programming Tool architecture. This pin
– RESET: device reset
– V
APPLICATION
POWER SUPPLY
SS
: device power supply ground
(See Note 3)
OPTIONAL
(See Note 4)
ST7
HE10 CONNECTOR TYPE
10
ICC CONNECTOR
9
PROGRAMMING TOOL
must be connected when using most ST Program-
ming Tools (it is used to monitor the application
power supply). Please refer to the Programming
Tool manual.
4. Pin 9 must be connected to the PB4 pin of the
ST7 when the clock is not available in the applica-
tion or if the selected clock option is not pro-
grammed in the option byte. ST7 devices with
multi-oscillator
grounded in this case.
5. With any programming tool, while the ICP option
is disabled, the external clock must be provided on
PB4.
6. In 38-pulse ICC mode, the internal RC oscillator
is forced as a clock source, regardless of the se-
lection in the option byte. For ST7LITE30 devices
which do not support the internal RC oscillator, the
“option byte disabled” mode must be used (35-
pulse ICC mode entry, clock provided by the tool).
Caution: During normal operation ICCCLK pin
must be pulled- up, internally or externally (exter-
nal pull-up of 10k mandatory in noisy environ-
ment).
unexpectedly during a reset. In the application,
even if the pin is configured as output, any reset
puts it back in input pull-up.
7
8
ICC CONNECTOR
– ICCCLK: ICC output serial clock pin
– ICCDATA: ICC input serial data pin
– CLKIN/PB4: main clock input for external
– V
source
al, see Note 3)
5
6
DD
4
: application board power supply (option-
3
This
ICC Cable
1
2
avoids
capability
See Note 1 and caution
See Note 1
APPLICATION BOARD
See Note 2
APPLICATION
RESET SOURCE
entering
must
ST7LITE3xF2
APPLICATION
have
ICC
I/O
OSC2
13/173
mode
1