GMS90C52-GB172

The GMS90C52-GB172 is a kind of 8-bit single-chip microcontroller. It operates from 4.25 to 5.5 V.

There are some features as follows: (1) fully compatible to standard MCS-51 microcontroller; (2) wide operating frequency up to 40MHz; (3) 8K*8 (EP)ROM; (4) 256*8 RAM; (5) 64K external program memory space; (6) 64K external data memory space; (7) four 8-bit ports; (8) three 16-bit timers/counters (timer2 with up/down counter feature); (9) USART; (6) six interrupt sources, two priority levels; (6) power saving Idle and power down mode; (7) quick pulse programming algorithm (in the OTP devices); (8) 2-level program memory lock (in the OTP devices); (9) 2.7Volt low voltage version available; (10) P-DIP-40, P-LCC-44, P-MQFP-44 package.

The following is the absloute maximum ratings: (1): storage temperature range is from -65 to +150; (2): ambient temperature under bias is from -40 to +85; (3): voltage on VCC pins with respect to ground (VSS) is from -0.5 to 6.5 V; (4): voltage on any pins with respect to ground (VSS) is from -0.5 to VCC+0.5 V; (5): input current on any pin during overload condition is from -15 to 15 mA; (6): absolute sum of all input currents during overload condition is |100mA|; (7): power dissipation is 1.5 W.