ST72F324J4B6 STMicroelectronics, ST72F324J4B6 Datasheet - Page 143

• Manufacturer Part Number: ST72F324J4B6
• Description: IC MCU 8BIT 16K FLASH 42-PDIP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F324J4B6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Processor Series: ST72F3x
• 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: 3.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Development Tools By Supplier: ST7F521-IND/USB, ST7232X-EVAL, ST7MDT20-DVP3, ST7MDT20J-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• For Use With: 497-6421 - BOARD EVAL DGTL BATT CHGR DESIGN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

ADC CHARACTERISTICS (Cont’d)
Figure 83. R
Figure 85. Typical A/D Converter Application
Notes:
1. C
pacitance (3pF). A high C
2. This graph shows that depending on the input signal variation (f
decreased to allow the use of a larger serial resistor (R
PARASITIC
45
40
35
30
25
20
15
10
5
0
V
0
AIN
represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the pad ca-
AIN
max. vs f
R
10
C
AIN
PARASITIC
PARASITIC
ADC
(pF)
C
30
AIN
with C
value will downgrade conversion accuracy. To remedy this, f
AINx
2 MHz
1 MHz
AIN
70
=0pF
1)
AIN)
.
V
DD
Figure 84. Recommended C
V
0.6V
V
0.6V
T
T
1000
AIN
100
0.1
10
1
), C
AIN
0.01
2kΩ(max)
can be increased for stabilization time and
I
±1µA
L
0.1
f
AIN
ST72324Jx ST72324Kx
(KHz)
10-Bit A/D
Conversion
1
ADC
AIN
Cain 10 nF
Cain 22 nF
Cain 47 nF
should be reduced.
& R
10
AIN values.
ST72XXX
C
12pF
143/164
ADC
2)
1