ST72C334J2B6 STMicroelectronics, ST72C334J2B6 Datasheet - Page 48
ST72C334J2B6
Manufacturer Part Number
ST72C334J2B6
Description
8-bit Microcontrollers - MCU Flash 8K SPI/SCI
Manufacturer
STMicroelectronics
Datasheet
1.ST72C334J2B6.pdf
(153 pages)
Specifications of ST72C334J2B6
Product Category
8-bit Microcontrollers - MCU
Core
ST7
Data Bus Width
8 bit
Maximum Clock Frequency
8 MHz
Program Memory Size
8 KB
Data Ram Size
384 B
On-chip Adc
Yes
Operating Supply Voltage
3.2 V to 5.5 V
Package / Case
SDIP-42
Mounting Style
Through Hole
A/d Bit Size
8 bit
A/d Channels Available
8
Data Rom Size
256 B
Interface Type
SCI, SPI
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
32
Number Of Timers
4 bit
Program Memory Type
Flash
Factory Pack Quantity
13
Supply Voltage - Max
5 V
Supply Voltage - Min
3.2 V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST72C334J2B6
Manufacturer:
ST
Quantity:
507
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ST72334J/N, ST72314J/N, ST72124J
MISCELLANEOUS REGISTERS (Cont’d)
MISCELLANEOUS REGISTER 2 (MISCR2)
Read /Write
Reset Value: 0000 0000 (00h)
Bit 7:6 = Reserved Must always be cleared
Bit 5:4 = BC[1:0] Beep control
These 2 bits select the PF1 pin beep capability.
The beep output signal is available in ACTIVE-
HALT mode but has to be disabled to reduce the
consumption.
Bit 3:2 = Reserved Must always be cleared
Bit 1 = SSM SS mode selection
It is set and cleared by software.
0: Normal mode - SS uses information coming
from the SS pin of the SPI.
1: I/O mode, the SPI uses the information stored
into bit SSI.
Bit 0 = SSI SS internal mode
This bit replaces pin SS of the SPI when bit SSM is
set to 1. (see SPI description). It is set and cleared
by software.
Table 10. Miscellaneous Register Map and Reset Values
48/153
Address
7
-
(Hex.)
0020h
0040h
Beep mode with f
~500-Hz
~1-KHz
~2-KHz
-
MISCR1
Reset Value
MISCR2
Reset Value
BC1
Register
Label
Off
BC0
~50% duty cycle
OSC
Beep signal
=16MHz
Output
IS11
-
7
0
0
-
IS10
SSM
6
0
0
BC1 BC0
0
0
1
1
SSI
0
0
1
0
1
MCO
BC1
5
0
0
IS21
BC0
4
0
0
IS20
3
0
0
CP1
2
0
0
SSM
CP0
1
0
0
SMS
SSI
0
0
0
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