MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 225

• Manufacturer Part Number: MC812A4CPVE8
• Description: IC MCU 16BIT EEPROM 4K 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC812A4CPVE8

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 83
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: EEPROM
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Processor Series: HC812A
• Core: HC12
• Data Bus Width: 16 bit
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 91
• Number Of Timers: 8
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Controller Family/series: 68HC12
• No. Of I/o's: 91
• Eeprom Memory Size: 4KB
• Ram Memory Size: 1KB
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

18.7 ATD DC Electrical Characteristcs
18.8 Analog Converter Operating Characteristics
Freescale Semiconductor
Analog supply voltage
Analog supply current, normal operation
Reference voltage, low
Reference voltage, high
V
Input voltage
Input current, off channel
Reference supply current
Input capacitance
8-bit resolution
Differential non-linearity
Integral non-linearity
Absolute error
Maximum source impedance
1. V
2. Accuracy is guaranteed at V
3. To obtain full-scale, full-range results, V
4. Maximum leakage occurs at maximum operating temperature. Current decreases by approximately one-half for each
1. V
2. V
3. At V
4. 8-bit absolute error of 1 count (20 mV) includes 1/2 count (10 mv) inherent quantization error and 1/2 count (10 mV) circuit
5. Maximum source impedance is application-dependent. Error resulting from pin leakage depends on junction leakage into
REF
Not sampling
Sampling
2, 4, 8, and 16 ATD sample clocks
10°C decrease from maximum temperature.
(differential, integral, and offset) error.
the pin and on leakage due to charge-sharing with internal capacitance.
Error from junction leakage is a function of external source impedance and input leakage current. Expected error in result
value due to junction leakage is expressed in voltage (V
where I
clock speed, the number of channels being scanned, and source impedance. For 8-bit conversions, charge pump leakage
is computed as follows:
DD
DD
RH
differential reference voltage
−V
REF
= 5.0 Vdc ± 10%, V
= 5.0 Vdc ± 10%, V
RL
= 5.12 V, one 8-bit count = 20 mV.
OFF
(3)
≥ 5.12 V; V
(3),(4)
(2)
is a function of operating temperature. Charge-sharing effects with internal capacitors are a function of ATD
(3)
Characteristic
(3)
DDA
(4)
SS
SS
—V
Characteristic
= 0 Vdc, T
= 0 Vdc, T
RH
SSA
(2)
V
− V
ERRJ
= 5.12 V
(1)
RL
A
A
=
= .25 pF × V
= T
= T
5.0 Vdc ± 10%
SSA
MC68HC812A4 Data Sheet, Rev. 7
(1)
L
L
≤ V
to T
to T
RL
H
H
, ATD clock = 2 MHz, unless otherwise noted
, ATD clock = 2 MHz, unless otherwise noted
DDA
≤ V
INDC
V
× R
.
ERRJ
ERRJ
S
≤ V
× ATDCLK/(8 × number of channels)
):
= R
2 counts
Symbol
RH
DNL
INL
AE
R
S
≤ V
S
× I
DDA
OFF
.
−0.5
Min
V
—
−1
−2
—
Symbol
RH
V
V
C
C
I
I
I
V
V
DDA
INDC
OFF
REF
DDA
INN
INS
RH
−V
RL
RL
ATD DC Electrical Characteristcs
Typical
24
20
—
—
—
V
V
V
DDA
Min
4.5
4.5
—
—
—
—
—
SSA
SSA
/2
See note
Max
+0.5
V
+1
+2
—
V
V
Max
DDA
100
250
5.5
1.0
5.5
10
15
DDA
DDA
(5)
/2
Count
Count
Count
Unit
Unit
mV
mA
kΩ
nA
µA
pF
V
V
V
V
V
225