3
MB90230 Series
s PRODUCT LINEUP
NB90234
MB90P234
MB90W234
MB90V230
Classification
Mask ROM products
One-time PROM
model
EPROM model
Evaluation
model
ROM size
48 Kbytes
96 Kbytes
—
RAM size
2 Kbytes
3 Kbytes
4 Kbytes
CPU functions
Number of instructions: 420
Instruction bit length: 8 or 16 bits
Instruction length: 1 to 7 bytes
Data bit length: 1, 4, 8, 16, or 32 bits
Minimum execution time: 62.5 ns at 16 MHz (internal)
Ports
Up to 84 lines
I/O ports (CMOS): 51
I/O ports (CMOS) with pull-up resistor available: 24
I/O ports (open-drain): 9
UART
Number of channels: 1 (switchable I/O)
Clock synchronous communication (2404 to 38460 bps, full-duplex double buffering)
Clock asynchronous communication (500K to 5M bps, full-duplex double buffering)
Serial interface
Number of channels: 1
Internal or external clock mode
Clock synchronous transfer (62.5 kHz to 1 MHz, “LSB first” or “MSB first” transfer)
A/D converter
Resolution: 10 or 8 bits, Number of input lines: 4
Single conversion mode (conversion for a specified input channel)
Scan conversion mode (continuous conversion for specified consecutive channels)
Continuous conversion mode (repeated conversion for a specified channel)
Stop conversion mode (periodical conversion)
D/A converter
Resolution: 8 bits, Number of output pins: 2
Level
comparator
Comparison to internal D/A converter (4-bit resolution)
PWM
Number of channels: 6
8-bit PWM control circuit (operation of 1
×φ, 2×φ, 16×φ, 32×φ)
PPG timer
Number of channels: 1 channel with 8-bit resolution
PWM function: Continuous output of pulse synchronous to trigger
Single-shot function: Output of single pulse by trigger
Serial E2PROM
interface
Number of channels: 1
Instruction code (NS type)
Variable address length: 8 to 11 bits (with address increment function)
Variable data length: 8 or 16 bits
Timer
Number of channels: 6
16-bit reload timer operation (operation clock cycle of 0.25
s to 1.05 s)
Free run timer
Number of channels: 1
16-bit input capture unit: 4 channels
16-bit output compare unit: 6 channels
External interrupt
input
Number of input pins: 4
Standby mode
Stop mode and sleep mode
Package
FPT-100P-M05
FPT-100C-C01
PGA256-A02
MB90233
Parameter
Part number