DS07-12526-1E
FUJITSU SEMICONDUCTOR
DATA SHEET
8-bit Proprietary Microcontroller
CMOS
F
2
MC-8L MB89920 Series
MB89923/925/P928/PV920
s
DESCRIPTION
The MB89920 series is a line of single-chip microcontrollers using the F
2
MC*-8L CPU core which can operate
at low voltage but at high speed.
The microcontrollers in this series contain peripheral functions such as a PWM timer, an input capture/output
compare control counter, an LCD controller/driver, an A/D converter, and a UART.
The MB89920 series can suit a wide range of applications such as analog input conversion, pulse input
measurement/pulse output control, serial communications control, and display control.
*: F
2
MC stands for FUJITSU Flexible Microcontroller.
s
FEATURES
High speed processing at low voltage
Minimum execution time: 0.5
s/8.0 MHz
F
2
MC-8L family CPU core
8-bit PWM timer: 2 channels (also usable as a reload timer)
16-bit input capture: 2 channels / 16-bit output compare: 2 channels
(Continued)
s
PACKAGE
Multiplication and division instructions
16-bit arithmetic operations
Test and branch instructions
Bit manipulation instructions, etc.
Instruction set optimized for controllers
(MQP-80C-P01)
(FPT-80P-M06)
80-pin Plastic QFP
80-pin Ceramic MQFP
2
MB89920 Series
(Continued)
20-bit time-base counter
UART: 1 channel (with asynchronous transfer mode and 8-bit synchronous serial mode)
8-bit serial interface: 1 channel (LSB first/MSB first selectability)
10-bit A/D converter: 8 channels
LCD controller/driver: 28 segments
4 commons (max. 112 pixels)
Low-voltage detection reset
Watchdog timer reset
External interrupt: 4 channels
Four channels are independent and capable of wake-up from the low-power consumption mode (with edge
detection function)
Buzzer output/clock output
Low-power consumption modes:
Stop mode (The software stops oscillation to minimize the current consumption.)
Sleep mode (The CPU stops to reduce current consumption to approx. 1/3 of normal.)
Hardware standby mode (The pin input stops oscillation.)
3
MB89920 Series
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PRODUCT LINEUP
* : The minimum operating voltage varies with conditions such as the operating frequencies, functions, and
development tool.
MB89925
MB89P928
MB89PV920
Classification
Mass production products
(mask ROM products)
One-time PROM product
(for development)
Piggyback/evaluation
product (for development)
ROM size
8 K
8 bits
(internal mask ROM)
16 K
8 bits
(internal mask ROM)
48 K
8 bits
(internal PROM)
48 K
8 bits
(external ROM)
RAM size
256
8 bits
512
8 bits
1024
8 bits
CPU functions
Number of instructions:
136
Instruction bit length:
8 bits
Instruction length:
1 to 3 bytes
Data bit length:
1, 8, 16 bits
Minimum execution time:
0.5
s/8 MHz
Interrupt processing time:
4.5
s/8 MHz
Ports
I/O ports (CMOS):
35 (25 ports also serve as peripherals.)
I/O ports (N-ch open-drain):
34 (All also serve as peripherals.)
Total:
69
Options
Specify with mask options
Set with EPROM programmer
None
20-bit time-base
timer
20 bits (interval time selection: 4.10 ms, 16.38 ms, 65.54 ms, 262 ms/8 MHz)
Real-time I/O
16-bit timer: operating clock cycle (0.5
s, 1.0
s, 2.0
s, 4.0
s), overflow interrupt
Input capture: 16 bits
2 channels, external trigger edge selectability
Output compare: 16 bits
2 channels
LCD controller/
driver
Common output: 4 (selectable from 2 to 4 by software)
Segment output: 28 (can be switched to ports in 4-pin unit by software)
Bias power supply pins: 3
LCD display RAM size: 14
8 bits
Dividing resistor for LCD driving: bult-in (external resistor selectability)
8-bit PWM timer
8 bits
2-channel reload timer operation
8 bits
2-channel PWM operation (4 cycles selectable)
8 bits
1-channel PPG operation (4 oscillation clocks selectable)
UART
Variable data length (7 or 8 bits), internal baud rate generator, error detection function,
full-duplex with internal double buffer, NRZ transmission formation,
Clock synchronous/asynchronous transfer capable
8-bit serial I/O
8 bits, LSB first/MSB first selectability,
One clock selectable from four transfer clocks
(one external shift clock, three internal shift clocks: 1.0
s, 4.0
s, 16.0
s)
10-bit A/D
converter
10-bit resolution
8 channels
A/D conversion mode (conversion time: 16.5
s (33 instruction cycles))
Sense mode (conversion time: 9.0
s (18 instruction cycles))
Continuous activation by an internal clock capable
Watchdog timer
Interval time: approx. 130 to 260 ms
Low-voltage
detection reset
Reset activation voltage: 3.0 to 4.3 V
Reset release voltage: 3.1 to 4.5 V
Hardware standby
Stop the clock oscillation by pin input
Buzzer/clock output
1 channel (output a frequency from 1 KHz, 2 KHz, 4 KHz, and divided clock frequency)
External interrupt
4 channels (rising edge/falling edge selectability)
Package
QFP-80
MQFP-80
Operating voltage
2.2 to 6.0 V*
2.7 to 6.0 V*
2.7 to 6.0 V*
EPROM for use
MBM27C512-20TV
(LCC package)
MB89923
Part number
Parameter
4
MB89920 Series
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PACKAGE AND CORRESPONDING PRODUCTS
: Available
: Not available
Note: For more information about each package, see section "
s
Package Dimensions."
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DIFFERENCES AMONG PRODUCTS
1. Memory Size
Before evaluating using the piggyback product, verify its differences from the product that will actually be used.
Take particular care on the following points:
The stack area, etc., is set at the upper limit of the RAM.
The external area is used.
2. Current Consumption
In the case of the MB89PV920, add the current consumed by the EPROM which is connected to the top socket.
When operated at low speed, the product with an OTPROM (one-time PROM) or an EPROM will consume
more current than the product with a mask ROM.
However, the current consumption in sleep/stop modes is the same. (For more information, see section
"
s
Electrical Characteristics.")
3. Mask Options
Functions that can be selected as options and how to designate these options vary by the product.
Before using options check section "
s
Mask Options."
Package
MB89923
MB89925
MB89P928
MB89PV920
FPT-80P-M06
MQP-80C-P01
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