FUJITSU SEMICONDUCTOR
DATA SHEET
DS07-12526-1E
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
µs/8.0
MHz
• F
2
MC-8L family CPU core
Multiplication and division instructions
16-bit arithmetic operations
Test and branch instructions
Bit manipulation instructions, etc.
Instruction set optimized for controllers
• 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
80-pin Plastic QFP
80-pin Ceramic MQFP
(FPT-80P-M06)
(MQP-80C-P01)
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.)
2
MB89920 Series
s
PRODUCT LINEUP
Part number
Parameter
MB89923
MB89925
MB89P928
MB89PV920
Classification
ROM size
RAM size
CPU functions
Ports
Options
20-bit time-base
timer
Real-time I/O
Mass production products
Piggyback/evaluation
One-time PROM product
(for development)
product (for development)
(mask ROM products)
8 K
×
8 bits
16 K
×
8 bits
48 K
×
8 bits
48 K
×
8 bits
(internal mask ROM) (internal mask ROM)
(internal PROM)
(external ROM)
256
×
8 bits
512
×
8 bits
1024
×
8 bits
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
µs/8
MHz
Interrupt processing time:
4.5
µs/8
MHz
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
Set with EPROM programmer
Specify with mask options
None
20 bits (interval time selection: 4.10 ms, 16.38 ms, 65.54 ms, 262 ms/8 MHz)
16-bit timer: operating clock cycle (0.5
µs,
1.0
µs,
2.0
µs,
4.0
µs),
overflow interrupt
Input capture: 16 bits
×
2 channels, external trigger edge selectability
Output compare: 16 bits
×
2 channels
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 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)
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 bits, LSB first/MSB first selectability,
One clock selectable from four transfer clocks
(one external shift clock, three internal shift clocks: 1.0
µs,
4.0
µs,
16.0
µs)
10-bit resolution
×
8 channels
A/D conversion mode (conversion time: 16.5
µs
(33 instruction cycles))
Sense mode (conversion time: 9.0
µs
(18 instruction cycles))
Continuous activation by an internal clock capable
Interval time: approx. 130 to 260 ms
Reset activation voltage: 3.0 to 4.3 V
Reset release voltage: 3.1 to 4.5 V
Stop the clock oscillation by pin input
1 channel (output a frequency from 1 KHz, 2 KHz, 4 KHz, and divided clock frequency)
4 channels (rising edge/falling edge selectability)
QFP-80
MQFP-80
2.2 to 6.0 V*
2.7 to 6.0 V*
2.7 to 6.0 V*
MBM27C512-20TV
(LCC package)
LCD controller/
driver
8-bit PWM timer
UART
8-bit serial I/O
10-bit A/D
converter
Watchdog timer
Low-voltage
detection reset
Hardware standby
Buzzer/clock output
External interrupt
Package
Operating voltage
EPROM for use
* : The minimum operating voltage varies with conditions such as the operating frequencies, functions, and
development tool.
3
MB89920 Series
s
PACKAGE AND CORRESPONDING PRODUCTS
Package
FPT-80P-M06
MQP-80C-P01
: Available
×
MB89923
MB89925
MB89P928
MB89PV920
×
×
: Not available
Note: For more information about each package, see section “s Package Dimensions.”
s
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.”
4
MB89920 Series
s
PIN ASSIGNMENT
(Top view)
P72/SEG18
P73/SEG19
P74/SEG20
P75/SEG21
P76/SEG22
P77/SEG23
P80/SEG24
P81/SEG25
P82/SEG26
P83/SEG27
P90/RTO0
P91/RTO1
P92/CLK
P93/PWM0
V
SS
MODA
X1
X0
P94/PWM1
HST
RST
P95/SCK
P96/SO
P97/SI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
P71/SEG17
P70/SEG16
P67/SEG15
P66/SEG14
P65/SEG13
P64/SEG12
P63/SEG11
P62/SEG10
P61/SEG9
P60/SEG8
P57/SEG7
P56/SEG6
P55/SEG5
P54/SEG4
P53/SEG3
P52/SEG2
(Lead pitch: 0.80 mm)
(Body size: 20 mm
×
14 mm)
P51/SEG1
P50/SEG0
P40/COM0
P41/COM1
P42/COM2
P43/COM3
P44/V1
P45/V2
V3
V
CC
AV
CC
AVR
AV
SS
P10/AN0
P11/AN1
P12/AN2
P13/AN3
P14/AN4
P15/AN5
P16/AN6
P17/AN7
P00/INT0
P01/INT1
P02/INT2
(Only for mass production or one-time PROM products)
P32/UCK
P31/UO
P30/UI
P27
P26
P25
P24
P23/RTI1
P22
P21
P20/RTI0
P07
P06
P05
P04
P03/INT3
(FPT-80P-M06)
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
5
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