![](http://datasheet.mmic.net.cn/330000/MB90470_datasheet_16437510/MB90470_4.png)
MB90470 Series
4
I
PRODUCT LINEUP
(Continued)
Parameter
Part number
MB90F474L
MB90F474H
MB90473
MB90474
ROM capacity
FLASH 256 KB
FLASH 256 KB
MASKROM
128 KB
10 KB
: 351
: 8-bit, 16-bit
: 1 byte to 7 bytes
: 1-bit, 8-bit, 16-bit
: 62.5 ns (with 16 MHz machine clock)
MASKROM
256 KB
16 KB
RAM capacity
16 KB
16 KB
CPU functions
Basic instructions
Instruction bit length
Instruction length
Data bit length
Minimum instruction execution time
General purpose input/output ports : 84 Max
General purpose input/output ports (CMOS output)
General purpose input/output ports (built-in pull-up resistance)
General purpose input/output ports (N-ch open drain)
Stop-start synchronized : 1 channel
8-bit 6-channel/16-bit 3-channel
Two 8-bit up-down counters with 6 event input pins
Two 8-bit reload/compare registers
Channel : 1
Overflow interrupt
Channels : 6
Pin input source : from compare register match signal
Channels : 2
Register rewritten from pin input (rising/falling/both edges)
External interrupt pins : 8 channels (set to edge or level correlation)
2-channel, built-in
1-channel, built-in
18-bit counter
Interrupt cycle : 1.0 ms, 4.1 ms, 16.4 ms, 131.1 ms
(minimum times, at base oscillator frequency 4 MHz)
Conversion accuracy : 8/10-bit switchable
Single conversion mode (converts selected channel 1 time only)
Scan conversion mode
(converts multiple consecutive channels, programmable up to 8 channels)
Continuous conversion mode (converts selected channels continuously)
Stop conversion mode (converts selected channel, stops and repeats)
Reset interval : 3.58 ms, 14.33 ms, 57.23 ms, 458.75 ms
(minimum times, at base oscillator frequency 4 MHz)
Sleep, stop, CPU intermittent, watch mode
CMOS
Flash model, low
voltage version
(f
=
10 MHz or
less at V
CC
=
2.4 V)
Ports
UART
8/16-bit PPG timer
8/16-bit up-down counter/timer
16-bit
input/
out-
put
timers
16
-
bit free
-
run timer
Output compare
(
OCU
)
Input capture (ICU)
DTP/external interrupt circuit
I/O expansion serial interface
I
2
C interface
Time base timer
A/D converter
Watchdog timer
Low power (standby) modes
Process
Notes
Flash model, high
voltage version
(f
=
20 MHz)
Mask version
Mask version
Emulator dedicated power supply