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GMS97C54H Datasheet(PDF) 7 Page - Hynix Semiconductor |
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GMS97C54H Datasheet(HTML) 7 Page - Hynix Semiconductor |
7 / 59 page GMS90 Series Oct. 2000 Ver 3.1a 3 GMS90C54/56/58, 97C54/56/58 GMS90L54/56/58, 97L54/56/58 (Low voltage versions) • Fully compatible to standard MCS-51 microcontroller • Wide operating frequency up to 40MHz (for more detail, see “GMS90 Series Selection Guide”) • 16K/24K/32K bytes (EP)ROM •256 × 8RAM • 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 • Six interrupt sources, two priority levels • Power saving Idle and power down mode • Quick pulse programming algorithm (in the OTP devices) • 2-level program memory lock (in the OTP devices) • 2.7Volt low voltage version available • P-DIP-40, P-LCC-44, P-MQFP-44 package Block Diagram RAM 256 × 8 PORT 0 PORT 1 PORT 3 PORT 2 8-BIT USART ROM / EPROM GMS9XX54: 16K × 8 CPU T0 T1 I/O I/O I/O I/O T2 GMS9XX56: 24K × 8 GMS9XX58: 32K × 8 |
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