MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 227

• 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

18.11 Control Timing
Freescale Semiconductor
Frequency of operation
E-clock period
Crystal frequency
External oscillator frequency
Processor control setup time
Reset input pulse width
Mode programming setup time
Mode programming hold time
Interrupt pulse width, IRQ, edge-sensitive mode, KWU
Wait recovery startup time
Timer pulse width, input capture pulse accumulator input
t
To guarantee external reset vector
Minimum input time (can be pre-empted by internal reset)
PW
PW
PCSU
IRQ
TIM
= t
= 2 t
= 2 t
cyc
PT7
PT7
Notes:
PT[7:0]
PT[7:0]
1. Rising edge-sensitive input
2. Falling edge-sensitive input
/2 + 30
cyc
cyc
(1)
(2)
(1)
(2)
+ 20
+ 20
Characteristic
PW
PW
TIM
PA
MC68HC812A4 Data Sheet, Rev. 7
Figure 18-1. Timer Inputs
Symbol
PW
PW
PW
t
f
t
t
t
PCSU
XTAL
WRS
t
2 f
MPS
MPH
cyc
f
RSTL
o
IRQ
TIM
o
Min
125
270
270
dc
dc
82
32
10
—
—
2
4
8.0 MHz
Max
16.0
16.0
8.0
—
—
—
—
—
—
—
—
Control Timing
4
MHz
MHz
MHz
Unit
t
t
t
ns
ns
ns
ns
ns
cyc
cyc
cyc
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