ST72C254G2M6 STMicroelectronics, ST72C254G2M6 Datasheet - Page 8

• Manufacturer Part Number: ST72C254G2M6
• Description: IC MCU 8BIT 8K FLASH SOIC-28
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72C254G2M6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 3.2 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Controller Family/series: ST7
• No. Of I/o's: 22
• Ram Memory Size: 256Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Rohs Compliant: Yes
• Processor Series: ST72C2x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C, SPI
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 3 bit
• Operating Supply Voltage: 3.2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7MDT1-DVP2/US
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: In Transition

ST72104Gx, ST72215Gx, ST72216Gx, ST72254Gx
PIN DESCRIPTION (Cont’d)
For external pin connection guidelines, refer to
96.
Legend / Abbreviations for
Type:
Input level:
In/Output level: C = CMOS 0.3V
Output level:
Port and control configuration:
Refer to
The RESET configuration of each pin is shown in bold. This configuration is valid as long as the device is
in reset state.
Table 1. Device Pin Description
8/141
6
Pin n°
10 8 PB3/OCMP2_A
11 9 PB2/ICAP2_A
12 10 PB1 /OCMP1_A
13 11 PB0 /ICAP1_A
14 12 PC5/EXTCLK_A/AIN5 I/O
15 13 PC4/OCMP2_B/AIN4
16 14 PC3/ ICAP2_B/AIN3
17 15 PC2/MCO/AIN2
– Input:
– Output:
1
2
3
4
5
6
7
8
9
1 RESET
2 OSC1
3 OSC2
4 PB7/SS
5 PB6/SCK/ISPCLK
6 PB5/MISO/ISPDATA
7 PB4/MOSI
NC
NC
Section 9 "I/O PORTS" on page 30
Pin Name
3)
3)
I = input, O = output, S = supply
A = Dedicated analog input
C
HS = 20mA high sink (on N-buffer only)
float = floating, wpu = weak pull-up, int = interrupt
OD = open drain
T
= CMOS 0.3V
I/O C
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Table
O
I
DD
DD
2)
Level
T
1:
, PP = push-pull
/0.7V
C
C
C
C
C
C
C
C
C
C
C
C
/0.7V
T
T
T
T
T
T
T
T
T
T
T
T
DD
DD
X
X
X
X
X
X
X
X
X ei0/ei1
X ei0/ei1
X ei0/ei1 X
X ei0/ei1 X
for more details on the software configuration of the I/O ports.
,
with input trigger
Port / Control
Input
X
Section 13 "ELECTRICAL CHARACTERISTICS" on page
ei1
ei1
ei1
ei1
ei1
ei1
ei1
ei1
Output
X
X
X
X
X
X
X
X
X
X
X
X
X
Not Connected
X
X
X
X
X
X
X
X
X
X
X
X
Top priority non maskable interrupt (active low)
External clock input or Resonator oscillator in-
verter input or resistor input for RC oscillator
Resonator oscillator inverter output or capaci-
tor input for RC oscillator
Port B7
Port B6
Port B5
Port B4
Port B3
Port B2
Port B1
Port B0
Port C5
Port C4
Port C3
Port C2
(after reset)
Function
1)
Main
, ana = analog
SPI Slave Select (active low)
SPI Serial Clock or ISP Clock
SPI Master In/ Slave Out Data
or ISP Data
SPI Master Out / Slave In Data
Timer A Output Compare 2
Timer A Input Capture 2
Timer A Output Compare 1
Timer A Input Capture 1
Timer A Input Clock or ADC
Analog Input 5
Timer B Output Compare 2 or
ADC Analog Input 4
Timer B Input Capture 2 or
ADC Analog Input 3
Main clock output (f
ADC Analog Input 2
Alternate Function
CPU
) or