ST10F269-T3 STMicroelectronics, ST10F269-T3 Datasheet - Page 72
ST10F269-T3
Manufacturer Part Number
ST10F269-T3
Description
Manufacturer
STMicroelectronics
Datasheet
1.ST10F269-T3.pdf
(162 pages)
Specifications of ST10F269-T3
Cpu Family
ST10
Device Core Size
16b
Frequency (max)
32MHz
Interface Type
ASC/I2C/SSC
Program Memory Type
Flash
Program Memory Size
256KB
Total Internal Ram Size
12KB
# I/os (max)
111
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
On-chip Adc
16-chx10-bit
Instruction Set Architecture
CISC/RISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
144
Package Type
TQFP
Lead Free Status / Rohs Status
Supplier Unconfirmed
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Manufacturer
Quantity
Price
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ST10F269-T3
Pin P3.12 (BHE/WRH) is another pin with an
alternate output function, however, its structure is
slightly different.
After reset the BHE or WRH function must be
used
configuration. In either of these cases, there is no
Figure 29 : Block Diagram of Pins P3.15 (CLKOUT) and P3.12 (BHE/WRH)
Note: Enabling the BHE or WRH function automatically enables the P3.12 output driver. Setting bit
72/162
DP3.12=’1’ is not required.
During bus hold pin P3.12 is switched back to its standard function and is then controlled by
DP3.12 and P3.12. Keep DP3.12 = ’0’ in this case to ensure floating in hold mode.
depending
Read DP3.x
Write DP3.x
Port Output
Read P3.x
Write P3.x
Direction
Latch
Latch
on
the
MUX
system
Alternate
Data
Output
1
0
Alternate
Function
Enable
“1”
start-up
1
0
1
0
MUX
MUX
possibility to program any port latches before.
Thus, the appropriate alternate function is
selected automatically. If BHE/WRH is not used in
the system, this pin can be used for general
purpose I/O by disabling the alternate function
(BYTDIS = ‘1’ / WRCFG=’0’).
Clock
Latch
Input
Output
Buffer
x = 15, 12
P3.12/BHE
P3.15/CLKOUT
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