ST7FLITE35F2B6 STMicroelectronics, ST7FLITE35F2B6 Datasheet - Page 53
ST7FLITE35F2B6
Manufacturer Part Number
ST7FLITE35F2B6
Description
IC MCU 8BIT 8K FLASH 20DIP
Manufacturer
STMicroelectronics
Series
ST7r
Specifications of ST7FLITE35F2B6
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
LINSCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
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-DIP (0.300", 7.62mm)
Processor Series
ST7FLITE3x
Core
ST7
Data Bus Width
8 bit
Data Ram Size
384 B
Interface Type
LINSCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
15
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Development Tools By Supplier
ST7FLITE-SK/RAIS, ST7MDT10-DVP3, ST7MDT10-EMU3, STX-RLINK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 7 Channel
For Use With
497-5858 - EVAL BOARD PLAYBACK ST7FLITE497-5085 - EVAL BOARD UNIV MOTOR CONTROL497-5049 - KIT STARTER RAISONANCE ST7FLITE
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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WATCHDOG TIMER (Cont’d)
The application program must write in the CR reg-
ister at regular intervals during normal operation to
prevent an MCU reset. This downcounter is free-
running: it counts down even if the watchdog is
disabled. The value to be stored in the CR register
must be between FFh and C0h (see
.Watchdog
– The WDGA bit is set (watchdog enabled)
– The T6 bit is set to prevent generating an imme-
– The T[5:0] bits contain the number of increments
Following a reset, the watchdog is disabled. Once
activated it cannot be disabled, except by a reset.
The T6 bit can be used to generate a software re-
set (the WDGA bit is set and the T6 bit is cleared).
If the watchdog is activated, the HALT instruction
will generate a Reset.
diate reset
which represents the time delay before the
watchdog produces a reset.
Timing):
Table 14
Table 14.Watchdog Timing
Notes: The timing variation shown in
due to the unknown status of the prescaler when
writing to the CR register.
11.1.4 Hardware Watchdog Option
If Hardware Watchdog is selected by option byte,
the watchdog is always active and the WDGA bit in
the CR is not used.
Refer to the Option Byte description in
15.1 on page
11.1.4.1 Using Halt Mode with the WDG
(WDGHALT option)
If Halt mode with Watchdog is enabled by option
byte (No watchdog reset on HALT instruction), it is
recommended before executing the HALT instruc-
tion to refresh the WDG counter, to avoid an unex-
pected WDG reset immediately after waking up
the microcontroller.
Counter
Code
WDG
C0h
FFh
161.
f
CPU
[ms]
= 8MHz
min
127
1
ST7LITE3xF2
Table 14
[ms]
max
128
2
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