ST72T311J2T6 STMicroelectronics, ST72T311J2T6 Datasheet - Page 91

• 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

PERIPHERAL CHARACTERISTICS (Cont’d)
(T
*Note: ADC Accuracy vs. Negative Injection Current :
For I
a loss of 1 LSB by 10K increase of the external analog source impedance.
These measurements results and recommendations take worst case injection conditions into account:
- negative injection
- injection to an Input with analog capability, adjacent to the enabled Analog Input
- at 5V V
Symbol
C
V
SS
C
T
Res
DLE
ILE
V
I
t
t
R
C
R
leakage
A
ADC
STAB
CONV
T
pin
hold
SAMPLE
AIN
AIN
HOLD
SS
V
= -40°C to +125°C and V
inj-
AIN
=0.8mA, the typical leakage induced inside the die is 1.6µA and the effect on the ADC accuracy is
DD
= input capacitance
= threshold voltage
= sampling switch
= sample/hold
= leakage current
at the pin due
to various junctions
R
capacitance
Sample Duration
ADC Resolution
Differential Linearity Error*
Integral Linearity Error*
Analog Input Voltage
Supply current rise
during A/D conversion
Stabilization time after ADC enable
Conversion Time
Resistance of analog sources
(V
Hold Capacitance
Resistance of sampling switch and
internal trace
supply, and worst case temperature.
AIN
AIN)
Parameter
DD
Px.x/AINx
= 5V±10% unless otherwise specified )
C
5pF
pin
A/D Converter Specifications
f
V
f
V
f
V
CPU
CPU
CPU
DD
DD
DD
=8MHz
=8MHz
=8MHz, T=25°C,
=V
=V
=V
Conditions
DDA
DDA
DDA
V
V
T
T
=5V
=5V
=5V
V
= 0.6V
= 0.6V
DD
±1µA
leakage max.
V
Min
SSA
SS
Sampling
Switch
2
ST72E311 ST72T311
Typ
±0.6
31.5
30
64
8
1
8
R
SS
V
Max
±1
±2
DDA
15
22
2
91
V
C
22 pF
SS
hold
1/f
bit
V
mA
µs
µs
1/f
pF
91/101
Unit
CPU
CPU