Microcontrollers(444)

Voice ICs(260)

W78C438

The W78C438 MCU is a 12T 8051 MCU operating at 4.5V ~ 5.5V and 0 ℃ ~ 70 ℃, and provides one UART and external bus interface. Package type is QFP100.

Target Application:

Security/Alarm, UI, Power Management, IPC, etc.

Key Features:

Core
  - 12T 8051 processor
  - Max frequency of 40 MHz
  - Operating voltage: 4.5V to 5.5V
  - Temperature range: 0 ℃ ~ 70 ℃
Memory
  - External Bus Interface ( EBI ) for external memory-mapped device access
  - 256B of SRAM
Connectivity
  - One UART