
NEC => Renesas Technology
DESCRIPTION
The µPD75408 is a 4-bit single-chip microcomputer whose data processing capability is comparative to that of an 8-bit microcomputer.
The µPD75048 employs a CPU whose minimum instruction execution time is 0.95 µs, and contains the EEPROM, A/D converter, multi-function timer, and high performance hardware to provide high cost to performance ratio.
Detailed functions are described in the following users manual. Read this manual when designing your system.
FEATURES
• Built-in EEPROM: 1024 x 4 bits (data memory area)
• Built-in 8-bit resolution A/D converter (successive approximation): 8 channels
• Capable of operating at low voltage: VDD = 2.7 to 6.0 V
• Reference voltage can be arbitrarily specified between AVREF+ and AVREF-.
• Built-in multi-function timer which can provide the following functions:
• 8-bit timer
• PWM output
• 16-bit free running timer
• 16-bit integration type A/D converter counter
• I/O ports: 48 pins
• Middle voltage N-ch open drain input/output ports: 12 pins
• 43 I/O lines can be provided with internal pull down resistors
• PROM version is available: µPD75P048
(One-time PROM)
APPLICATIONS
• Consumer electronics products, telephones, cameras, automobile audio equipment, electronics measurement equipment, etc.