(China (Mainland))
Product Summary
The STC121E5A48S2-35I is a single-chip microcontroller based on a high performance 1T architecture 8051 CPU, which is produced by STC MCU Limited. With the enhanced kernel, the STC121E5A48S2-35I executes instructions in 1~6 clock cycles (about 8~12 times the rate of a standard 8051 device), and has a fully compatible instruction set with industrial-standard 8051 series microcontroller. In-System-Programming (ISP) and In-Application-Programming (IAP) support the users to upgrade the program and data in system.
Parametrics
STC121E5A48S2-35I absolute maximum ratings: (1)Srotage temperature TSTG: -55 to +125 ℃; (2)Operating temperature (I) TA: -40 to +85 ℃; (3)Operating temperature (C) TA: 0 to +70 ℃; (4)DC power supply (5V) VDD-VSS: -0.3 to +6.0 V; (5)DC power supply (3V) VDD - VSS: -0.3 to +4.0 V; (6)Voltage on any pin: -0.5 to 5.5 V.
Features
STC121E5A48S2-35I features: (1)Operating voltage range: 5.5V ~ 3.5V or 2.2V ~ 3.6V (STC12LE5410AD).; (2)Operating frequency range: 0- 35MHz, is equivalent to standard 8051: 0~420MHz; (3)On-chip 12K/10K/8K/6K/4K/2K/1K FLASH program memory with flexible ISP/IAP capability; (4)On-chip 512 byte RAM; (5)Power control: idle mode(can be waked up by any interrupt) and power-down mode(can be waked up by external interrupts); (6)Code protection for flash memory access; (7)Excellent noise immunity, very low power consumption; (8)six 16-bit timer/counter, be compatible with Timer0/Timer1 of standard 8051, 4-channel PCA can be available as four timers; (9)9 vector-address, 4 level priority interrupt capability.
Diagrams
