MOS INTEGRATED CIRCUIT
16/8-BIT SINGLE-CHIP MICROCONTROLLER
The µPD784036(A) is a product of the µPD784038 sub-series in the 78K/IV series. A stricter quality assurance
program applies to the µPD784036(A) than the µPD784036 (standard product). In terms of the NEC quality, the
µPD784036(A) is classified as the special grade.
The µPD784036(A) contains various peripheral hardware such as ROM, RAM, I/O ports, 8-bit resolution A/D and
D/A converters, timers, serial interface, and interrupt functions, as well as a high-speed, high-performance CPU.
In addition, the µPD78P4038(A) (one-time PROM or EPROM product), which can be operated within the same
power supply voltage ranges as masked-ROM products, and development tools are supported.
For specific functions and other detailed information, consult the following user’s manual.
This manual is required reading for design work.
µPD784038, 784038Y Sub-Series User’s Manual, Hardware : U11316E
78K/IV Series User’s Manual, Instruction
• Higher reliability than the µPD784036 (Refer to Qual-
ity Grade on NEC Semiconductor Devices (Document
• Minimum instruction execution time: 125 ns
(at 32 MHz)
• Number of I/O ports: 64
16-bit timer/counter × 3 units
16-bit timer × 1 unit
• A/D converter: 8-bit resolution × 8 channels
• D/A converter: 8-bit resolution × 2 channels
• Standby function
• PWM outputs: 2
• Serial interface: 3 channels
UART/IOE (3-wire serial I/O): 2 channels
CSI (3-wire serial I/O, 2-wire serial I/O): 1 channel
• Clock frequency division function
• Watchdog timer: 1 channel
• Clock output function
Selected from fCLK, fCLK/2, fCLK/4, fCLK/8, or fCLK/16
• Power supply voltage: VDD = 2.7 to 5.5 V
Controllers for automobile electronic control systems, gas detector circuit-breakers, various types of safety
This manual describes the µPD784036(A) unless otherwise specified.
The information in this document is subject to change without notice.
Document No. U13010EJ1V0DS00 (1st edition)
Date Published December 1997 J
Printed in Japan