ST72T311J2T6 STMicroelectronics, ST72T311J2T6 Datasheet - Page 90

• Manufacturer Part Number: ST72T311J2T6
• Description: 8-bit Microcontrollers - MCU OTP EPROM 8K SPI/I2C
• Manufacturer: STMicroelectronics

Specifications of ST72T311J2T6

• 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 V to 5.5 V
• Package / Case: TQFP-44
• Mounting Style: SMD/SMT
• A/d Bit Size: 8 bit
• A/d Channels Available: 6
• 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: OTP EPROM
• Factory Pack Quantity: 160
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 3 V

ST72E311 ST72T311
7.4 RESET CHARACTERISTICS
(T
Note:
1) These values given only as design guidelines and are not tested.
7.5 OSCILLATOR CHARACTERISTICS
(T
7.6 PERIPHERAL CHARACTERISTICS
Notes:
1. The safe reset cannot be guaranted by the LVD when fosc is greater than 8MHz.
2. Based on characterisation results, not tested.
90/101
t
t
V
RESET
PULSE
Symbol
Symbol
A
A
V
Symbol
LVDDOWN
V
=-40...+125
R
f
t
LVDHYS
= -40°C to +125°C unless otherwise specified)
OSC
start
g
LVDUP
ON
m
90
Reset Weak Pull-up R
Pulse duration generated by watch-
dog and POR reset
Minimum pulse duration to be ap-
plied on external RESET pin
Oscillator transconductance
Crystal frequency
Osc. start up time
LVD Reset Trigger, V
LVD Reset Trigger, V
o
C and V
LVD Reset Trigger, hysteresis
Parameter
Parameter
Low Voltage Detection Reset Electrical Specifications (Option)
DD
Parameter
=5V±10% unless otherwise specified.
ON
DD
DD
falling edge
rising edge
2)
Test Conditions
V
V
V
DD
IN
IN
> V
< V
= 5V±10%
f
OSC
IH
IL
Conditions
Conditions
= 8 MHz max
1)
Min.
.
2
1
3.6
Min.
3.35
10
Min
20
60
2)
1)
Value
Typ.
Typ
Typ.
3.85
250
3.6
120
40
1
1)
Max.
16
50
9
Max.
Max
3.85
240
4.1
80
mA/V
MHz
Unit
Unit
ms
Unit
k
mV
ns
V
V
s