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參數(shù)資料
| 型號： | μPD780949(A) |
| 廠商： | NEC Corp. |
| 英文描述： | 8 Bit Microcontrollers(8 位微控制器) |
| 中文描述： | 8位微控制器（8位微控制器） |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 36K |
| 代理商： | ΜPD780949(A) |
78K0 CAN family
Product Letter
The μPD78(F)094x 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)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.
Description
Block Diagram
60 Kbytes internal mask ROM or Flash EPROM
2 Kbytes internal RAM (high speed: 1024 bytes;
LCD display: 40 bytes; expansion: 992 bytes)
256 bytes EEPROM optional
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)
4 x 40 segments LCD controller/driver
8-channel 8-bit A/D converter including power
failure detector
Serial interface (3-wire, 2-wire, UART)
Timer channels (2 x 16-bit timer 2 x 8-bit timer/
event counter watch timer, watch dog timer)
Sound generator
External access
Vectored interrupts (22 internal, 5 external)
79 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
100-pin QFP package (14 mm x 20 mm)
Applications
Features
μ
PD78(F)0948/49
8-bit Microcontrollers
Watch Timer
Watchdog Timer
3-wire CSI
SI
SO
SCK
40 x 4 LCD
Controller/Driver
AN0-AN7
AV
SS
AV
REF
UART
BRG
RxD
TxD
A/D Converter &
Power Fail Detection
Two 8-bit Timers
TI/TO
CPU
78K0
8-bit
RESET
ASTB
A8-15
AD0-7
WR
RD
Two 16-bit Timers
TI/TO
TI
ROM
60 Kbytes
Mask or
Flash
60 Kbytes
79 I/O Ports
Ports
System Control
Standby Control
Interrupt
Control
Clock Output
Control
X2
X1
PCL
INTP0-4
SGOA
SGO
Sound Generator
External
Bus Access
RC Subclock
CL2
CL1
S0-S39
COM0-COM3
VLC0-VLC3
RAM
2 Kbytes
EEPROM
256 bytes
(optional)
DCAN Interface
CRxD
CTxD
CCLK
2-wire CSI
SIO
SCK
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