78K0 CAN family
Product Letter
The μPD78(F)081x with an on-chip CAN interface is a member of a new branch of NEC’s 78K0
8-bit microcomputer family. Based on 0.35 mm technology, the devices integrate powerful
application-specific peripherals in combination with EEPROM and Flash memory technology.
They offer outstanding perspectives and opportunities for system solutions at an excellent price/
performance ratio. There are now over 120 different devices in NEC’s established and powerful
78K0 8-bit microcomputer family. All new products will be offered as mask ROM and Flash EPROM.
The μPD78(F)081x is suited for body controller applications in the automotive sector like door,
mirror, roof-modules, seat/climate control and low end airbag solutions. In addition, the device is
ideal for industrial applications like security systems or intelligent office control where CAN
functionality is required.
Description
Block Diagram
16/32 Kbytes internal mask ROM or 60 Kbytes
internal Flash EPROM
0.8/1.3 Kbytes internal RAM (high speed: 512/
1024 bytes; expansion: 288/992 bytes)
256 bytes EEPROM
Instructions execution time adjustable from
0.25
μ
s at 8 MHz down to RC subsystem clock
Powerful instruction set
Bit manipulation in entire address space
Built-in multiply and divide instructions
DCAN Interface (2 transmit buffers; up to 16
program receive buffers)
Serial interface (3-wire, UART)
12-channel 8-bit A/D converter including power
failure detector
Timer channels (2 x 16-bit timer 2 x 8-bit timer/
event counter, watch timer watchdog timer)
Sound generator
Vectored interrupts (22 internal, 4 external)
46 I/O ports
RC subsystem clock oscillator
Built-in clock oscillator circuit
Standby control (HALT, STOP mode)
Operating supply voltage: 4.0 – 5.5 V
64-pin QFP package (12 mm x 12 mm)
Main clock monitor
Applications
Features
μ
PD78F0818
μ
PD780812/14
8-bit Microcontrollers
Watch Timer
Watchdog Timer
3-wire CSI
SI
SO
SCK
UART
BRG
RxD
TxD
Two 8-bit Timers
TI/TO
CPU
78K0
8-bit
RESET
Two 16-bit Timers
TI/TO
TI
ROM
16/32 Kbytes
Mask or
Flash
60 Kbytes
46 I/O Ports
RC Subclock
Ports
System Control
Standby Control
Clock Output
Control
Interrupt Control
X2
X1
PCL
INTP0-3
CL2
CL1
RAM
0.8/1.3 Kbytes
EEPROM
256 bytes
DCAN Interface
CRxD
CTxD
CCLK
A/D Converter &
Power Fail Detection
AV
SS
AV
REF
/AV
DD
AN0-AN11
46 I/O Pins
Main Clock Monitor