ST72C334J4T6 STMicroelectronics, ST72C334J4T6 Datasheet - Page 138

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

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

ST72334J/N, ST72314J/N, ST72124J
16.12 8-BIT ADC CHARACTERISTICS
Subject to general operating conditions for V
Figure 98. Typical Application with ADC
Notes:
1. Unless otherwise specified, typical data are based on T
lines and are not tested.
2. When V
3. Any added external serial resistor will downgrade the ADC accuracy (especially for resistance greater than 10k ). Data
based on characterization results, not tested in production.
4. The stabilization time of the AD converter is masked by the first t
always valid.
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Symbol
C
t
R
f
V
t
STAB
ADC
ADC
ADC
AIN
AIN
DDA
ADC clock frequency
Conversion range voltage
External input resistor
Internal sample and hold capacitor
Stabilization time after ADC enable
Conversion time (Sample+Hold)
- Sample capacitor loading time
- Hold conversion time
V
V
and V
AIN
DD
SSA
Parameter
0.1 F
pins are not available on the pinout, the ADC refer to V
R
AIN
2)
AINx
V
V
DDA
SSA
f
CPU
C
~2pF
DD
IO
=8MHz, f
, f
OSC
Conditions
A
=25°C and V
V
, and T
DD
ADC
V
0.6V
V
0.6V
T
T
=4MHz
A
LOAD
DD
unless otherwise specified.
-V
. The first conversion after the enable is then
SS
=5V. They are given only as design guide-
I
±1 A
L
V
Min
DD
SSA
and V
SS
Typ
0
.
6
3
4
8
ADC
4)
1)
Max
V
10
DDA
4
3)
ST72XXX
1/f
Unit
MHz
k
pF
V
ADC
s