ST72C334J4T6 STMicroelectronics, ST72C334J4T6 Datasheet - Page 97

MCU 8BIT FLASH SPI SCI 44TQFP

ST72C334J4T6

Manufacturer Part Number
ST72C334J4T6
Description
MCU 8BIT FLASH SPI SCI 44TQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet

Specifications of ST72C334J4T6

Core Processor
ST7
Core Size
8-Bit
Speed
16MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 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
44-TQFP, 44-VQFP
Processor Series
ST72C3x
Core
ST7
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
32
Number Of Timers
4 bit
Operating Supply Voltage
3.2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ST7C334-INDART, ST7MDT2-EPB2/US
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-4838

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14.6 8-BIT A/D CONVERTER (ADC)
14.6.1 Introduction
The on-chip Analog to Digital Converter (ADC) pe-
ripheral is a 8-bit, successive approximation con-
verter with internal sample and hold circuitry. This
peripheral has up to 16 multiplexed analog input
channels (refer to device pin out description) that
allow the peripheral to convert the analog voltage
levels from up to 16 different sources.
The result of the conversion is stored in a 8-bit
Data Register. The A/D converter is controlled
through a Control/Status Register.
14.6.2 Main Features
The block diagram is shown in
Figure 51. ADC Block Diagram
8-bit conversion
Up to 16 channels with multiplexed input
Linear successive approximation
Data register (DR) which contains the results
Conversion complete status flag
On/off bit (to reduce consumption)
AIN0
AIN1
AINx
COCO
ANALOG
MUX
0
Figure
ADON
4
51.
R
f
CPU
ADC
ADCDR
0
CH3
CH2
D7
HOLD CONTROL
ence voltage pins. In some devices (refer to device
pin out description) they are internally connected
to the V
Conversion accuracy may therefore be impacted
by voltage drops and noise in the event of heavily
loaded or badly decoupled power supply lines.
See electrical characteristics section for more de-
tails.
14.6.3 Functional Description
14.6.3.1 Analog Power Supply
V
CH1
DDA
DIV 2
D6
CH0
and V
ST72334J/N, ST72314J/N, ST72124J
C
DD
ADC
D5
and V
ADCCSR
SSA
D4
are the high and low level refer-
SS
ANALOG TO DIGITAL
D3
pins.
f
ADC
CONVERTER
D2
D1
D0
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