
Microcontrollers 
MB90423GA
MB90423GB
420G/GA MB90423GC
series MB90F423GA
MB90F423GB
MB90F423GC
MB90427GA
MB90427GB
MB90427GC
MB90428GA
420G/GA
| ROM (KB) | RAM (KB) | Instruction Cycle (ns) | I/O Port | Package | Operating Voltage (V) | Operating temperature range | Ext. Interrupts | Clock | I2C | UART | 
 | LCD controller / driver | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 1 | - | 2 ch. | - | 24seg ⋅ | |||
| +5.5 | 
 | 4com | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 641 | 6 | 62.5 | 58 | +4.5 to | 8 | 2 | - | 2 ch. | - | 
 | 24seg ⋅ | ||
| 28 | +5.5 | 
 | 4com | ||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 2 | - | 2 ch. | - | 
 | 24seg ⋅ | ||
| +5.5 | 
 | 4com | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 1 | - | 2 ch. | - | 
 | 24seg ⋅ | ||
| +5.5 | 
 | 4com | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 2 | - | 2 ch. | - | 
 | 24seg ⋅ | ||
| +5.5 | 
 | 4com | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 2 | - | 2 ch. | - | 
 | 24seg ⋅ | ||
| +5.5 | 
 | 4com | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 64 | 4 | 62.5 | 58 | +4.5 to | 8 | 1 | - | 2 ch. | - | 
 | 24seg ⋅ | ||
| +5.5 | 
 | 4com | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 64 | 4 | 62.5 | 58 | +4.5 to | 8 | 2 | - | 2 ch. | - | 
 | 24seg ⋅ | ||
| +5.5 | 
 | 4com | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 64 | 4 | 62.5 | 58 | +4.5 to | 8 | 2 | - | 2 ch. | - | 
 | 24seg ⋅ | ||
| +5.5 | 
 | 4com | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 1 | - | 2 ch. | - | 
 | 24seg ⋅ | ||
| +5.5 | 
 | 4com | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | +4.5 to | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 24seg ⋅ | 
series
MB90428GB
MB90428GC
MB90F428GA
MB90F428GB
MB90F428GC
MB90437L
MB90437LS
MB90438L
MB90438LS
| 128 | 6 | 62.5 | 58 | +5.5 | 8 | 2 | - | 2 ch. | - | 4com | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 2 | - | 2 ch. | - | 24seg ⋅ | |||
| +5.5 | 4com | ||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 1 | - | 2 ch. | - | 24seg ⋅ | |||
| +5.5 | 4com | ||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 2 | - | 2 ch. | - | 24seg ⋅ | |||
| +5.5 | 4com | ||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||
| 128 | 6 | 62.5 | 58 | +4.5 to | 8 | 2 | - | 2 ch. | - | 24seg ⋅ | |||
| +5.5 | 4com | ||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||
| 64 | 2 | 62.5 | 80 | +3.5 to | 8 | 2 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 64 | 2 | 62.5 | 80 | +3.5 to | 8 | 1 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 4 | 62.5 | 80 | +3.5 to | 8 | 2 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 4 | 62.5 | 80 | +3.5 to | 8 | 1 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | +4.5 to | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
435MB90439
series MB90439S MB90F438L MB90F438LS MB90F439 MB90F439S
MB90443G *
440G
series
MB90F443G
* : Under development
| 256 | 6 | 62.5 | 80 | +5.5 | 8 | 2 | - | 2 ch. | 1 ch. | - | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 256 | 6 | 62.5 | 80 | +4.5 to | 8 | 1 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 4 | 62.5 | 80 | +3.5 to | 8 | 2 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 4 | 62.5 | 80 | +3.5 to | 8 | 1 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 256 | 6 | 62.5 | 80 | +4.5 to | 8 | 2 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 256 | 6 | 62.5 | 80 | +4.5 to | 8 | 1 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 6 | 62.5 | 81 | +4.5 to | 8 | 2 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 128 | 6 | 62.5 | 81 | +4.5 to | 8 | 2 | - | 2 ch. | 1 ch. | - | |||
| +5.5 | |||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
302