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HMS99C52 Datasheet, PDF (5/43 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS | |||
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HMS99C5X Series
HMS99C52
⢠Fully compatible to standard MCS-51 microcontroller
⢠Wide operating frequency up to 40MHz
(for more detail, see âHMS99C5X Series Selection Guideâ)
⢠X2 Speed Improvement capability ( X2 Mode : 6 clocks/machine cycle)
20MHz @5V (Equivalent to 40MHz @5V)
⢠8K bytes FLASH ROM
⢠256 à 8Bit RAM
⢠64K external program memory space
⢠64K external data memory space
⢠Four 8-bit ports
⢠Three 16-bit Timers / Counters (Timer2 with up/down counter feature)
⢠USART
⢠One clock output port
⢠Programmable ALE pin enable / disable (Low EMI)
⢠Six interrupt sources, two priority levels
⢠Power saving Idle and power down mode
⢠P-DIP-40, P-LCC-44, P-MQFP-44 package
⢠Temperature Ranges : -40°C ~ 85°C
Block Diagram
RAM
256 Ã 8
PORT 0
I/O
T0
PORT 1
I/O
T2
CPU
8-BIT
USART
T1
PORT 2
I/O
FLASH ROM
8K Ã 8
PORT 3
I/O
Jan. 2003 Ver 1.0
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