GMS90X5XC Series | HYUNDAI MicroElectronics |
GMS90C51C
GMS90L51C(Low voltage versions)
•Fully compatible to standard
•Wide operating frequency up to 40MHz
(for more detail, see “GMS90X5XC Series Selection Guide”)
•X2 Speed Improvement capability (6 clocks/machine cycle) 20MHz @5V (Equivalent to 40MHz @5V)
8MHz @3V (Equivalent to 16MHz @3V)
•4K × 8 ROM
•128 × 8 RAM
•64K external program memory space
•64K external data memory space
•Four
•Two
•USART
•Programmable ALE pin enable / disable (Low EMI)
•Five interrupt sources, two priority levels
•Power saving Idle and power down mode
•2.7Volt low voltage version available
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Block Diagram
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| RAM |
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| 128 × | 8 |
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| T 0 | CPU |
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| PORT 1 |
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| USART |
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| T 1 |
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| PORT 2 |
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| I/O |
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| ROM / EPROM |
| PORT 3 |
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| 4K × | 8 |
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Jan. 2001 Ver 1.0
