ST62T32BQ6 STMicroelectronics, ST62T32BQ6 Datasheet - Page 28
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ST62T32BQ6
Manufacturer Part Number
ST62T32BQ6
Description
8-bit Microcontrollers - MCU OTP EPROM 8K SPI/UAR
Manufacturer
STMicroelectronics
Datasheet
1.ST62T32BQ6.pdf
(83 pages)
Specifications of ST62T32BQ6
Core
ST6
Data Bus Width
8 bit
Maximum Clock Frequency
8 MHz
Program Memory Size
7948 B
Data Ram Size
192 B
On-chip Adc
Yes
Package / Case
PQFP-52
Mounting Style
SMD/SMT
A/d Bit Size
8 bit
A/d Channels Available
21
Interface Type
SPI, UART
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
30
Number Of Timers
2
Program Memory Type
EPROM
Factory Pack Quantity
84
Supply Voltage - Max
5 V
Supply Voltage - Min
4.5 V
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ST62T32B ST62E32B
DIGITAL WATCHDOG (Cont’d)
These instructions test the C bit and Reset the
MCU (i.e. disable the Watchdog) if the bit is set
(i.e. if the Watchdog is active), thus disabling the
Watchdog.
In all modes, a minimum of 28 instructions are ex-
ecuted after activation, before the Watchdog can
generate a Reset. Consequently, user software
should load the watchdog counter within the first
27 instructions following Watchdog activation
(software mode), or within the first 27 instructions
executed following a Reset (hardware activation).
It should be noted that when the GEN bit is low (in-
terrupts disabled), the NMI interrupt is active but
cannot cause a wake up from STOP/WAIT modes.
Figure 19. Digital Watchdog Block Diagram
I
28/83
S
RSFF
RESET
Q
R
DB0
DB1.7
8
WRITE
DATA BUS
-2
LOAD
7
RESET
SET
Figure 18. A typical circuit making use of the
EXERNAL STOP MODE CONTROL feature
SWITCH
SET
-2
8
OSCILLATOR
CLOCK
-12
VA00010
NMI
I/O
VR02002
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