UPD78F9221

UPD78F9221 is 8-Bit Single-Chip Microcontrollers manufactured by NEC.

UPD78F9221 Datasheet

Part number	UPD78F9221
Download	UPD78F9221 Datasheet (PDF)
File Size	2.39 MB
Manufacturer	NEC
Description	8-Bit Single-Chip Microcontrollers

Part Number	Description
UPD78F9222	8-Bit Single-Chip Microcontrollers
UPD78F9210	8-bit Single-Chip Microcontrollers
UPD78F9210A	8-bit Single-Chip Microcontrollers
UPD78F9211	8-bit Single-Chip Microcontrollers
UPD78F9211A	8-bit Single-Chip Microcontrollers

High-speed system clock … Selected from the following three sources
Ceramic/crystal resonator
External clock
High-speed internal oscillator: 8 MHz ±3% (-10 to +80°C)
Low-speed internal oscillator 240 kHz (TYP.) … Watchdog timer, timer clock in intermittent operation
16-bit timer/event counter: 1 channel … Timer output × 1, capture input × 2
8-bit timer
Watchdog timer
Detection voltage: Selectable from ten levels between 2.35 and 4.3 V
Flash self programming enabled