ST92F124R9TB STMicroelectronics, ST92F124R9TB Datasheet - Page 156
![IC MCU 8BIT 64K MEMORY 64-LQFP](/photos/12/15/121504/stmicroelectronics-64-lqfp_sml.jpg)
ST92F124R9TB
Manufacturer Part Number
ST92F124R9TB
Description
IC MCU 8BIT 64K MEMORY 64-LQFP
Manufacturer
STMicroelectronics
Series
ST9r
Datasheet
1.ST92F150CV1TB.pdf
(429 pages)
Specifications of ST92F124R9TB
Core Processor
ST9
Core Size
8/16-Bit
Speed
24MHz
Connectivity
I²C, SCI, SPI
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
48
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
64-LQFP
Processor Series
ST92F12x
Core
ST9
Data Bus Width
8 bit, 16 bit
Data Ram Size
6 KB
Interface Type
CAN, I2C, SCI, SPI
Maximum Clock Frequency
24 MHz
Number Of Programmable I/os
80
Number Of Timers
16 bit
Operating Supply Voltage
4.5 V to 5.5 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ST92F150-EPB
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST92F124R9TB
Manufacturer:
STMicroelectronics
Quantity:
10 000
- Current page: 156 of 429
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ST92F124/F150/F250 - I/O PORTS
9.5 ALTERNATE FUNCTION ARCHITECTURE
Each I/O pin may be connected to three different
types of internal signal:
– Data bus Input/Output
– Alternate Function Input
– Alternate Function Output
9.5.1 Pin Declared as I/O
A pin declared as I/O, is connected to the I/O buff-
er. This pin may be an Input, an Output, or a bidi-
rectional I/O, depending on the value stored in
(PxC2, PxC1 and PxC0).
9.5.2 Pin Declared as an Alternate Function
Input
A single pin may be directly connected to several
Alternate Function inputs. In this case, the user
must select the required input mode (with the
PxC2, PxC1, PxC0 bits) and enable the selected
Alternate Function in the Control Register of the
peripheral. No specific port configuration is re-
quired to enable an Alternate Function input, since
the input buffer is directly connected to each alter-
nate function module on the shared pin. As more
than one module can use the same input, it is up to
the user software to enable the required module
as necessary. Parallel I/Os remain operational
even when using an Alternate Function input. The
exception to this is when an I/O port bit is perma-
nently assigned by hardware as an A/D bit. In this
case , after software programming of the bit in AF-
OD-TTL, the Alternate function output is forced to
logic level 1. The analog voltage level on the cor-
responding pin is directly input to the A/D (See
ure
Figure 86. A/D Input Configuration
156/429
9
TRISTATE
86).
OUTPUT MASTER LATCH
OUTPUT SLAVE LATCH
INTERNAL DATA BUS
I/O PIN
INPUT LATCH
GND
BUFFER
TOWARDS
ADC CONVERTER
INPUT
Fig-
9.5.3 Pin Declared as an Alternate Function
Output
The user must select the AF OUT configuration
using the PxC2, PxC1, PxC0 bits. Several Alter-
nate Function outputs may drive a common pin. In
such case, the Alternate Function output signals
are logically ANDed before driving the common
pin. The user must therefore enable the required
Alternate Function Output by software.
WARNING: When a pin is connected both to an al-
ternate function output and to an alternate function
input, it should be noted that the output signal will
always be present on the alternate function input.
9.6 I/O STATUS AFTER WFI, HALT AND RESET
The status of the I/O ports during the Wait For In-
terrupt, Halt and Reset operational modes is
shown in the following table. The External Memory
Interface ports are shown separately. If only the in-
ternal memory is being used and the ports are act-
ing as I/O, the status is the same as shown for the
other I/O ports.
* Depending on device
RESET
Mode
HALT
WFI
High Imped-
ance or next
High Imped-
memory op-
eration per-
(depending
Alternate function push-
pull (ROMless device)
on the last
formed on
address
Ext. Mem - I/O Ports
ance
Port)
P0
P1, P2, P6,
P9[7:2] *
Address
Address
Next
Next
Not Affected (clock
outputs running)
Not Affected (clock
outputs stopped)
Bidirectional Weak
Pull-up (High im-
pedance when dis-
abled in
hardware).
I/O Ports
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