MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 22

• 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

General Description
22
1. Key wakeup interrupt request can occur when an input goes from high to low.
2. PE1 and PE0 are input-only pins.
3. Key wakeup interrupt request can occur when an input goes from high to low.
4. Key wakeup interrupt request can occur when an input goes from high to low or from low to high.
1. The MCU operates from a single power supply. Use the customary bypass techniques as very fast signal transitions occur
2. Separate power supply pins allow the ADC power supply to be bypassed independently of the MCU power supply.
3. Out of reset the frequency applied to EXTAL is twice the desired E-clock rate. On reset all device clocks are derived from
4. LSTRB is the exclusive-NOR of A0 and the internal SZ8 signal. SZ8 indicates the size 16/8 access.
5. After reset, MODA and MODB can be configured as instruction queue tracking signals IPIPE0 and IPIPE1 or as gener-
Port AD
Port A
Port B
Port C
Port D
Port E
Port G
Port H
Port S
Port F
Port T
Port J
Port
on MCU pins.
the EXTAL input frequency. XTAL is the crystal output.
al-purpose I/O pins.
IOC7–IOC0
SDO/MOSI
SDI/MISO
RxD1
TxD1
SCK
Pin
SS
I/O and I
Direction
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
Port T
Port
PS2
PS3
PS4
PS5
PS6
PS7
(2)
Receive pin for SCI1
Transmit pin for SCI1
Master in/slave out pin for SPI
Master out/slave in pin for SPI
Serial clock for SPI
Slave select output for SPI in master mode; slave select input in slave mode
Input capture or output compare channels and pulse accumulator input
Single-chip modes: general-purpose I/O
Expanded modes: external address bus ADDR15–ADDR8
Single-chip modes: general-purpose I/O
Expanded modes: external address bus ADDR7–ADDR0
Single-chip modes: general-purpose I/O
Expanded wide modes: external data bus DATA15–DATA8
Expanded narrow modes: external data bus DATA15–DATA8/DATA7–DATA0
Single-chip and expanded narrow modes: general-purpose I/O
External data bus DATA7–DATA0 in expanded wide mode
External interrupt request inputs, mode select inputs, bus control signals
General-purpose I/O
Chip select
General-purpose I/O
Memory expansion
General-purpose I/O
Key wakeup
General-purpose I/O
Key wakeup
General-purpose I/O
SCI and SPI ports
General-purpose I/O
Timer port
General-purpose I/O
ADC port
General-purpose input
Table 1-2. Pin Descriptions (Continued)
Table 1-3. Port Descriptions
MC68HC812A4 Data Sheet, Rev. 7
(3)
(4)
Description
Function
(1)
Freescale Semiconductor