MCF52223CAF80 Freescale Semiconductor, MCF52223CAF80 Datasheet - Page 38

• Manufacturer Part Number: MCF52223CAF80
• Description: IC MCU 256K FLASH 80MHZ 100-LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF5222xr

Specifications of MCF52223CAF80

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: I²C, SPI, UART/USART, USB OTG
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 56
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Processor Series: MCF522x
• Core: ColdFire V2
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: I2C/QSPI/UART/USB
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 56
• Number Of Timers: 10
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: M52221DEMO, M52223EVB
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 12-bit
• For Use With: M52223EVB - BOARD EVAL FOR MCF52223
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2.13
Figure 9
closed/open. When S1/S2 are closed & S3 is open, one input of the sample and hold circuit moves to (V
the other charges to the analog input voltage. When the switches are flipped, the charge on C1 and C2 are averaged via S3, with
the result that a single-ended analog input is switched to a differential voltage centered about (V
switch on every cycle of the ADC clock (open one-half ADC clock, closed one-half ADC clock). There are additional
capacitances associated with the analog input pad, routing, etc., but these do not filter into the S/H output voltage, as S1 provides
isolation during the charge-sharing phase. One aspect of this circuit is that there is an on-going input current, which is a function
of the analog input voltage, V
Freescale Semiconductor
1
2
3
4
5
6
7
V
V
All measurements are made at V
INL measured from V
LSB = Least Significant Bit
INL measured from V
Includes power-up of ADC and V
ADC clock cycles
Current that can be injected or sourced from an unselected ADC signal input without impacting the performance of the ADC
SINAD
I
ENOB
Name
E
SFDR
OFFSET
OFFSET
VREFH
SNR
THD
1.
2.
I
X
GAIN
ADI
IN
shows the ADC input circuit during sample and hold. S1 and S2 are always open/closed at the same time that S3 is
Parasitic capacitance due to package, pin-to-pin and pin-to-package base coupling; 1.8pF
Parasitic capacitance due to the chip bond pad, ESD protection devices and signal routing; 2.04pF
Analog Input
Equivalent Circuit for ADC Inputs
Input impedance
Input injection current
V
Offset voltage internal reference
Gain error (transfer path)
Offset voltage external reference
Signal-to-noise ratio
Total harmonic distortion
Spurious free dynamic range
Signal-to-noise plus distortion
Effective number of bits
REFH
1
current
IN
IN
= V
= 0.1V
REF
REFL
2
REFH
Characteristic
and the ADC clock frequency.
7
to V
REF
, per pin
DD
to V
= 3.3V, V
IN
Table 35. ADC Parameters
MCF52223 ColdFire Microcontroller, Rev. 3
= V
IN
REFH
= 0.9V
125W ESD Resistor
REFH
REFH
(V
= 3.3V, and V
REFH
3
- V
REFL
)/ 2
REFL
8pF noise damping capacitor
S1
1
= ground
(continued)
S2
Min
.99
9.1
—
—
—
—
—
—
—
—
—
4
S3
See
67 to 70.3
61 to 63.9
62 to 66
Typical
10.6
Figure 9
75
8
3
C2
—
C1
0
1
REFH
S/H
Electrical Characteristics
-V
C1 = C2 = 1pF
1.01
Max
15
REFH
REFL
—
—
—
—
—
—
—
3
9
)/2. The switches
-V
REFL
)/2, while
Unit
Bits
mA
mA
mV
mV
dB
dB
dB
dB
W
—
38