GMS90C31/51, 97C51

GMS90L31/51, 97L51 (Low voltage versions)

? Fully compatible to standard MCS-51 microcontroller

? Wide operating frequency up to 40MHz (for more detail, see “GMS90 Series Selection Guide”)

? 4K × 8 (EP)ROM

? 128 × 8 RAM

? 64K external program memory space

? 64K external data memory space

? Four 8-bit ports

? Two 16-bit Timers / Counters

? USART

? Five 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

GMS90C32/52, 97C52

GMS90L32/52, 97L52 (Low voltage versions)

? Fully compatible to standard MCS-51 microcontroller

? Wide operating frequency up to 40MHz (for more detail, see “GMS90 Series Selection Guide”)

? 8K × 8 (EP)ROM

? 256 × 8 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

? 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

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 × 8 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

? 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