MC908AP16CBE Freescale Semiconductor, MC908AP16CBE Datasheet - Page 42
![IC MCU 16K FLASH 8MHZ 42DIP](/photos/12/18/121836/mc908ap16cbe_sml.jpg)
MC908AP16CBE
Manufacturer Part Number
MC908AP16CBE
Description
IC MCU 16K FLASH 8MHZ 42DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Specifications of MC908AP16CBE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SCI, SPI
Peripherals
LED, LVD, POR, PWM
Number Of I /o
30
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
42-DIP (0.600", 15.24mm)
Controller Family/series
HC08
No. Of I/o's
30
Ram Memory Size
1KB
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08AP
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
32
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Development Tools By Supplier
FSICEBASE, DEMO908AP64E, M68CBL05CE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Memory
Within page zero are 160 bytes of RAM. Because the location of the stack RAM is programmable, all page
zero RAM locations can be used for I/O control and user data or code. When the stack pointer is moved
from its reset location at $00FF, direct addressing mode instructions can access efficiently all page zero
RAM locations. Page zero RAM, therefore, provides ideal locations for frequently accessed global
variables.
Before processing an interrupt, the CPU uses five bytes of the stack to save the contents of the CPU
registers.
During a subroutine call, the CPU uses two bytes of the stack to store the return address. The stack
pointer decrements during pushes and increments during pulls.
2.5 FLASH Memory
This sub-section describes the operation of the embedded FLASH memory. This memory can be read,
programmed, and erased from a single external supply. The program and erase operations are enabled
through the use of an internal charge pump. The following table shows the FLASH memory size and
address range:
2.5.1 Functional Description
The FLASH memory consists of an array for user memory plus a block of 48 bytes for user interrupt
vectors and one byte for the mask option register. An erased bit reads as logic 1 and a programmed bit
reads as a logic 0. The FLASH memory page size is defined as 512 bytes, and is the minimum size that
can be erased in a page erase operation. Program and erase operations are facilitated through control
bits in FLASH control register (FLCR). The address ranges for the FLASH memory are:
Programming tools are available from Freescale. Contact your local Freescale representative for more
information.
42
•
•
•
$0860–$FBFF; user memory, 62,368 / 32,768 / 16,384 / 8,192 bytes
$FFD0–$FFFF; user interrupt vectors, 48 bytes
$FFCF; mask option register
Be careful when using nested subroutines. The CPU may overwrite data in
the RAM during a subroutine or during the interrupt stacking operation.
For correct operation, the stack pointer must point only to RAM locations.
MC68HC908AP64
MC68HC908AP32
MC68HC908AP16
MC68HC908AP8
A security feature prevents viewing of the FLASH contents.
Device
For M6805 compatibility, the H register is not stacked.
MC68HC908AP Family Data Sheet, Rev. 4
FLASH Size (Bytes)
NOTE
NOTE
NOTE
NOTE
62,368
32,768
16,384
8,192
Memory Address Range
$0860–$FBFF
$0860–$885F
$0860–$485F
$0860–$285F
(1)
Freescale Semiconductor
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