UPSD3234A-40U6T STMicroelectronics, UPSD3234A-40U6T Datasheet - Page 78

• Manufacturer Part Number: UPSD3234A-40U6T
• Description: IC MCU 8032 64KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3234A-40U6T

• Core Processor: 8032
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, UART/USART, USB
• Peripherals: LVR, POR, PWM, WDT
• Number Of I /o: 46
• Program Memory Size: 288KB (288K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Analog-to-digital convertor (ADC)
Table 46.
78/189
addr
SFR
95
96
97
ACON
name
ASCL
ADAT
Reg
Figure 34. ADC block diagram
ADC SFR memory map
Table 47.
7 to 6
3 to 2
Bit
5
4
1
ADAT7
7
Symbol
ADS1,
ADEN
ADST
ADS0
0, 0
0, 1
1, 0
1, 1
Description of the ACON bits
—
—
ADAT6
AVREF
ACON
ACH0
ACH1
ACH2
ACH3
6
Reserved
ADC Enable Bit:
Reserved
Analog channel select
ADC Start bit:
ADAT5
ADEN
5
MUX
Input
Bit register name
ADAT4
UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
4
0 : ADC shut off and consumes no operating current
1 : enable ADC
Channel0 (ACH0)
Channel1 (ACH1)
Channel2 (ACH2)
Channel3 (ACH3)
0 : force to zero
1 : start an ADC; after one cycle, bit is cleared to '0'
S/H
ADAT3 ADAT2
ADS1
D
Resistor
Ladder
ecode
3
INTERNAL BUS
ADS0
2
Function
ADAT1
ADST
1
Approximation
Successive
Circuit
ADAT0
ADSF
0
Reset
value
Conversion
00
00
00
Complete
ADAT
Interrupt
AI06627
Prescaler for
ADC Control
Comments
ADC clock
ADC Data
Register
Register
8-bit