ST72T331N2T6 STMicroelectronics, ST72T331N2T6 Datasheet - Page 29

• Manufacturer Part Number: ST72T331N2T6
• Description: 8-bit Microcontrollers - MCU OTP EPROM 8K SPI/SCI
• Manufacturer: STMicroelectronics

Specifications of ST72T331N2T6

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: ST7
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 16 MHz
• Program Memory Size: 8 KB
• Data Ram Size: 384 B
• On-chip Adc: Yes
• Package / Case: TQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 8 bit
• A/d Channels Available: 8
• Interface Type: SCI, SPI
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 44
• Number Of Timers: 2
• On-chip Dac: No
• Program Memory Type: EPROM
• Factory Pack Quantity: 90
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 3.5 V

I/O PORTS (Cont’d)
Figure 21
Table 10. Port Mode Configuration
Legend:
0 -
1 -
Floating
Pull-up
Push-pull
True Open Drain
Open Drain (logic level)
SOURCE (EIx)
EXTERNAL
INTERRUPT
ALTERNATE INPUT
present, not activated
present and activated
.
I/O Block Diagram
Configuration Mode
POLARITY
(S
SEL
EE
DR SEL
DDR SEL
OR SEL
T
DDR
LATCH
LATCH
LATCH
ABLE BELOW
OR
DR
ALTERNATE
OUTPUT
FROM
OTHER
BITS
M
U
X
)
1
0
ALTERNATE ENABLE
1
0
M
U
X
ALTERNATE
ENABLE
ALTERNATE
ENABLE
– No OR Register on some ports (see register map).
– ADC Switch on ports with analog alternate functions.
SCHMITT TRIGGER
not present
Notes:
ANALOG ENABLE
(ADC)
PULL-UP
CONDITION
Pull-up
CMOS
0
1
0
0
(S
EE
N
OTE BELOW
not present
ANALOG
SWITCH
P-buffer
PULL-UP
0
0
1
0
)
ST72E331 ST72T331
GND
N-BUFFER
V
(S
P-BUFFER
GND
DD
EE
(S
V
D
T
DD
IODE
EE
ABLE
not present
V
T
ABLE BELOW
DD
B
PAD
ELOW
Diode
1
1
1
1
29/107
)
29
)