![](http://datasheet.mmic.net.cn/370000/-PD784046_datasheet_16681088/-PD784046_1.png)
'
1995
PRELIMINARY PRODUCT INFORMATION
MOS INTEGRATED CIRCUIT
m
PD784044, 784046
Document No. U10951EJ1V0PM00 (1st edition)
Date Published May 1996 P
Printed in Japan
16-BIT SINGLE-CHIP MICROCONTROLLER
The
m
PD784046 is a model in the
m
PD784046 subseries within the 78K/IV series.
The
m
PD784046 is provided with many peripheral hardware functions such as ROM, RAM, I/O port, 10-bit resolution
A/D converter, timer, serial interface, and interrupt functions, in addition to a high-speed, high-performance CPU.
Moreover, a flash memory model,
m
PD78F4046, that can operate on the same supply voltage as the mask ROM
model, and many development tools are under development.
The functions are described in detail in the following User’s Manuals. Be sure to read these manuals when
designing your system.
m
PD784046 Subseries User’s Manual – Hardware : On preparation
78K/IV Series User’s Manual - Instruction
: U10905E
FEATURES
78K/IV series
Minimum instruction execution time
I/O port
Timer
: 125 ns (with 16-MHz internal clock)
: 65 lines
: 16-bit timer/counter
¥
2 units
16-bit timer
¥
3 units
: 10-bit resolution
¥
16 channels (V
DD
= 4.5 to 5.5 V)
A/D converter
Serial interface
UART/IOE (3-wire serial I/O)
Watchdog timer
Standby function
HALT/STOP/IDLE mode
Supply voltage
: 2 channels
: 1 channel
: V
DD
= 4.0 to 5.5 V
APPLICATION FIELDS
Water heaters, vending machines, etc.
ORDERING INFORMATION
Part Number
Package
Internal ROM (bytes)
Internal RAM (bytes)
m
PD784044GC-
¥¥¥
-3B9
m
PD784046GC-
¥¥¥
-3B9
80-pin plastic QFP (14 x 14 mm)
80-pin plastic QFP (14 x 14 mm)
32 K
64 K
1024
2048
Remark
¥¥¥
indicates a ROM code number.
Unless otherwise specified, the
m
PD784046 is explained as the representative model in this document.
The information contained in this document is being issued in advance of the production cycle for the
device. The parameters for the device may change before final production or NEC Corporation, at its own
discretion, may withdraw the device prior to its production.