78K0 CAN family
Product Letter
Description
碌PD78(F)0948/49
8-bit Microcontrollers
The 碌PD78(F)094x with an on-chip CAN interface is a member of a new branch of NEC鈥檚 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鈥檚 established and powerful
78K0 8-bit microcomputer family. All new products will be offered as mask ROM and Flash EPROM.
The 碌PD78(F)094x is suited for dashboard, air conditioning and high-end body controller
applications in the automotive sector. In addition, the device is ideal for applications where CAN
functionality is combined with control-oriented peripherals. In particular, there is full support for
systems connected to an LCD display. Since the LCD output is shared with a general-purpose pin,
non-LCD applications are also covered.
鈥?60 Kbytes internal mask ROM or Flash EPROM
鈥?2 Kbytes internal RAM (high speed: 1024 bytes;
LCD display: 40 bytes; expansion: 992 bytes)
鈥?256 bytes EEPROM optional
鈥?Instructions execution time adjustable from
0.25
碌s
at 8 MHz down to RC subsystem clock
鈥?Powerful instruction set
鈥?Bit manipulation in entire address space
鈥?Built-in multiply and divide instructions
鈥?DCAN Interface (2 transmit buffers; up to 16
program receive buffers)
鈥?4 x 40 segments LCD controller/driver
鈥?8-channel 8-bit A/D converter, including power
failure detector
鈥?Serial interface (3-wire, 2-wire, UART)
鈥?Timer channels (2 x 16-bit timer, 2 x 8-bit timer/
event counter, watch timer, watch dog timer)
鈥?Sound generator
鈥?External access
鈥?Vectored interrupts (22 internal, 5 external)
鈥?79 I/O ports
鈥?RC subsystem clock oscillator
鈥?Built-in clock oscillator circuit
鈥?Standby control (HALT, STOP mode)
鈥?Operating supply voltage: 4.0 鈥?5.5 V
鈥?100-pin QFP package (14 mm x 20 mm)
Applications
Features
Block Diagram
TI/TO
TI
Two 16-bit Timers
ROM
60 Kbytes
Mask or
Flash
60 Kbytes
CPU
78K0
8-bit
External
Bus Access
DCAN Interface
CRxD
CTxD
CCLK
SGOA
SGO
ASTB
A8-15
EEPROM
256 bytes
(optional)
AD0-7
WR
RD
CL2
CL1
TI/TO
Two 8-bit Timers
RAM
2 Kbytes
Sound Generator
Watch Timer
Watchdog Timer
SI
SO
SCK
SIO
SCK
RxD
TxD
S0-S39
COM0-COM3
VLC0-VLC3
AN0-AN7
AV
SS
AV
REF
40 x 4 LCD
Controller/Driver
3-wire CSI
2-wire CSI
RC Subclock
UART
BRG
Ports
System Control
Standby Control
RESET
X2
X1
PCL
INTP0-4
79 I/O Ports
Interrupt
Control
Clock Output
Control
A/D Converter &
Power Fail Detection
1
2
3
4
