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DS07-13505-5E
FUJITSU SEMICONDUCTOR
DATA SHEET
16-bit Proprietary Microcontroller
CMOS
F
2
MC-16F MB90246A Series
MB90246A
s
DESCRIPTION
The MB90246A series is a 16-bit microcontroller optimum to control mechatronics such as a hard disk drive unit.
The instruction set of F
2
MC-16F CPU core inherits AT architecture of F
2
MC*-16/16H family with additional
instruction sets for high-level languages, extended addressing mode, enhanced multiplication/division
instructions, and enhanced bit manipulation instructions. The microcontroller has a 32-bit accumulator for
processing long word data (32-bit).
The MB90246A series contains a production addition unit as peripheral resources for enabling easy
implementation of functions supported by IIR and FIR digital filters. It also supports a wealth of peripheral functions
including:
- an 8/10-bit A/D converter having eight channels;
- an 8-bit D/A converter having three channels;
- UART;
- an 8-bit PWM timer having four channels;
- a timer having three plus one channels;
- an input capture (ICU) having two channels; and
- a DTP/external interrupt circuit having four channels.
* : F
2
MC stands for FUJITSU Flexible Microcontroller.
s
PACKAGE
100-pin Plastic LQFP
(FPT-100P-M05)
2
MB90246A Series
s
FEATURES
Clock
Operating clock can be selected from divided-by-2, 4, 8 or 32 of oscillation (at oscillation of 32 MHz, 1 MHz
to 16 MHz).
Minimum instruction execution time of 62.5 ns (at machine clock of 16 MHz)
CPU addressing space of 16 Mbytes
Internal addressing of 24-bit
External accessing can be performed by selecting 8/16-bit bus width (external bus mode)
Instruction set optimized for controller applications
Rich data types (bit, byte, word, long word)
Rich addressing mode (23 types)
High code efficiency
Enhanced precision calculation realized by the 32-bit accumulator
Signed multiplication/division instruction
Instruction set designed for high level language (C) and multi-task operations
Adoption of system stack pointer
Enhanced pointer indirect instructions
Barrel shift instructions
Enhanced execution speed
8-byte instruction queue
Enhanced interrupt function
Priority levels: 8 levels
External interrupt input ports: 4 ports
Automatic data transmission function independent of CPU operation
Extended intelligent I/O service function (EI
2
OS)
Low-power consumption (stand-by) mode
Sleep mode (mode in which CPU operating clock is stopped)
Stop mode (mode in which oscillation is stopped)
Hardware stand-by mode
Gear function
Process
CMOS technology
I/O port
General-purpose I/O ports (CMOS): 38
General-purpose I/O ports (TTL): 11
General-purpose I/O ports (N-ch open-drain): 8
Total: 57
Timer
Timebase timer/watchdog timer: 1 channel
8-bit PWM timer: 4 channels
16-bit re-load timer: 3 channels
16-bit I/O timer
16-bit free-run timer: 1 channel
Input capture (ICU): 2 channels
I/O simple serial interface
Clock synchronized transmission can be used.
UART: 1 channel
Clock asynchronized or clock synchronized serial transmission can be selectively used.
DTP/external interrupt circuit: 4 channels
A module for starting extended intelligent I/O service (EI
2
OS) and generating an external interrupt triggered
by an external input.
(Continued)
3
MB90246A Series
(Continued)
Delayed interrupt generation module
Generates an interrupt request for switching tasks.
8/10-bit A/D converter: 8 channels
8-bit or 10-bit resolution can be selectively used.
Starting by an external trigger input.
8-bit D/A converter
Resolution: 8 bits
3 channels
DSP interface for the IIR filter
Function dedicated to IIR calculation
Up to eight items of results of signed multiplication of 16
16 bits are added.
Execution time of
: 0.625
s (When oscillation is 32 MHz and when N = M =3)
Up to three N and M values can be set at your disposal.
Yk =
bn Yk n +
am Xk m
N
M
n = 0
m = 0
4
MB90246A Series
s
PRODUCT LINEUP
(Continued)
MB90V246
Classification
Mass-produced product
Evaluation product
ROM size
None
RAM size
4 k
8 bits
6 k
8 bits
CPU functions
The number of instructions: 412
Instruction bit length: 8 bits, 16 bits
Instruction length: 1 byte to 7 bytes
Data bit length: 1 bit, 4 bits, 8 bits, 16 bits, 32 bits
Minimum execution time: 62.5 ns (at machine clock of 16 MHz)
Interrupt processing time: 1.0
s (at machine clock of 16 MHz, minimum
value)
Ports
General-purpose I/O ports (CMOS output): 38
General-purpose I/O ports (TTL input): 11
General-purpose I/O ports (N-ch open-drain output): 8
Total: 57
Timebase timer
18-bit counter
Interrupt interval: 0.256 ms, 1.024 ms, 4.096 ms, 16.384 ms
(at oscillation of 32 MHz)
Watchdog timer
Reset generation interval: 3.58 ms, 14.33 ms, 28.67 ms, 57.34 ms
(at oscillation of 32 MHz, minimum value)
8/16-bit PWM timer
Number of channels: 4
Pulse interval: 0.25
s to 32.77 ms (at oscillation of 32 MHz)
16-bit re-load timer
Number of channels: 3
16-bit re-load timer operation
Interval: 125 ns to 131 ms (at machine clock of 16 MHz)
External event count can be performed.
16-bit
I/O timer
16-bit free-run
timer
Number of channel: 1
Overflow interrupts or intermediate bit interrupts may be generated.
Input capture
(ICU)
Number of channel: 2
Rewriting a register value upon a pin input (rising, falling, or both edges)
I/O simple serial interface
Number of channels: 2
Clock synchronized transmission (62.5 kbps to 8 Mbps)
UART
Clock asynchronized transmission (2404 bps to 500 kbps)
Clock synchronized transmission (250 kbps to 2 Mbps)
Transmission can be performed by bi-directional serial transmission or by
master/slave connection.
DTP/external interrupt circuit
Number of inputs: 4
Started by a rising edge, a falling edge, an "H" level input, or an "L" level input.
External interrupt circuit or extended intelligent I/O service (EI
2
OS) can be used.
Delayed interrupt generation
module
An interrupt generation module for switching tasks
used in real-time operating systems.
MB90246A
Item
Part number
5
MB90246A Series
(Continued)
* : Varies with conditions such as the operating frequency. (See section "
s
Electrical Characteristics.") Assurance
for the MB90V246 is given only for operation with a tool at a power voltage of 4.5 V to 5.5 V, an operating
temperature of 0 to 70 degrees centigrade, and an clock frequency of 1.6 MHz to 32 MHz.
Note: A 64-word RAM for product addition is supported in addition to the above RAMs.
s
PACKAGE AND CORRESPONDING PRODUCTS
: Available
: Not available
Note: For more information about each package, see section "
s
Package Dimensions."
s
DIFFERENCES AMONG PRODUCTS
Memory Size
In evaluation with an evaluation chips, note the difference between the evaluation chip and the chip actually used.
The RAM size is 4 Kbytes for the MB90246A, and 6 Kbytes for the MB90V246.
MB90V246
8/10-bit A/D converter
Conversion precision: 10-bit or 8-bit can be selectively used.
Number of inputs: 8
One-shot conversion mode (converts selected channel only once)
Continuous conversion mode (converts selected channel continuously)
Stop conversion mode (converts selected channel and stop operation repeatedly)
8-bit D/A converter
Number of channels: 3
Resolution: 8 bits
Based on the R-2R system
DSP interface for the IIR
filter
Function dedicated to IIR calculation
Up to 8 items of results of signed
multiplication of 16
16 bits are added.
Execution time of
: 0.625
s
(When oscillation is 32 MHz and when N = M = 3)
Up to three N and M values can be set at your disposal.
Low-power consumption
(stand-by) mode
Sleep/stop/hardware stand-by/gear function
Process
CMOS
Power supply voltage for
operation*
4.5 V to 5.5 V
Package
MB90246A
MB90V246
FPT-100P-M05
PGA-256C-A02
MB90246A
Yk =
bn Yk n +
am Xk m
N
M
n = 0
m = 0
Item
Part number
Document Outline
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