CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH The IS89C52-40W is a microcontroller manufactured by ISSI (Integrated Silicon Solution, Inc.). Below are its specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Manufacturer:** ISSI (Integrated Silicon Solution, Inc.)
- **Part Number:** IS89C52-40W
- **Core:** 8-bit 8051 microcontroller
- **Clock Speed:** Up to 40 MHz
- **Operating Voltage:** 4.5V to 5.5V
- **Program Memory (ROM):** 8 KB Flash
- **RAM:** 256 bytes
- **Timers:** Three 16-bit timers/counters
- **I/O Ports:** Four 8-bit bidirectional ports (P0, P1, P2, P3)
- **Serial Communication:** UART (Full-duplex)
- **Interrupts:** Six interrupt sources with two priority levels
- **Power Consumption:** Low-power idle and power-down modes
- **Package:** 40-pin PDIP (Plastic Dual In-line Package)
### **Descriptions:**
The IS89C52-40W is a high-performance CMOS version of the 8051 microcontroller. It is fully compatible with the industry-standard 80C51 instruction set and pinout. It features 8 KB of reprogrammable Flash memory, making it suitable for embedded applications requiring firmware updates.
### **Features:**
- **8051-Compatible Architecture**
- **8 KB Flash Memory** for program storage
- **256 Bytes of On-Chip RAM**
- **40 MHz Maximum Operating Frequency**
- **Three 16-bit Timers/Counters**
- **Programmable Serial UART**
- **Boolean Processor** for bit manipulation
- **Power-Saving Modes** (Idle and Power-Down)
- **Wide Operating Voltage Range** (4.5V to 5.5V)
- **Industrial Temperature Range** (-40°C to +85°C)
This information is strictly based on the manufacturer's datasheet and technical documentation.
