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參數(shù)資料
| 型號(hào)： | μPD78F4218GF |
| 廠商： | NEC Corp. |
| 英文描述： | 16 Bit General-Purpose Microcontrollers(16位 通用微控制器) |
| 中文描述： | 16位通用微控制器（16位通用微控制器） |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 31K |
| 代理商： | ΜPD78F4218GF |
K4 Family Product Brief
Description
The μPD7842xx devices are highly integrated members of NEC’s K4 family of 16-bit
microcontrollers whose expanded memory and higher performance provide an
upward migration path for NEC’s 8-bit K0 microcontrollers. With the same peripherals
and instruction set, and an address space expanded to 1M, the μPD7842xx makes it
easy to add features to any existing K0 design. The minimum instruction execution
time is reduced from 0.4 μs to 0.16 μs, and RAM/ROM options are increased to allow
up to 256K ROM and 12K RAM on chip. Dual oscillators, 1.8- to 5.5-volt operation,
and powerful power-saving modes combine to make this family ideal in consumer
electronics applications requiring high integration and very low cost.
The μPD7842xx is supported by an extensive tool chain that includes a software
simulator, C compiler, relocatable assembler, screen debugger and in-circuit
emulator. These tools are compatible throughout NEC’s K Series product line.
Block Diagram
97YL-0266C (10/97)
RESET
VDD
VSS
IC
Hardware
Multiply
and
Divide
System Registers
– PC
– PSW
– Stack Pointer
CPU
and
Macro
Control
ALU
External
Memory
Interface
Programmable
Interrupts
Clocks and
System Control
System
Control
Clock
Output
Subsystem
Oscillator
Main
Oscillator
2-Channel,
8-bit
D/A Converter
A
A
SI0
SO0
SCK0
RxD1/SI1
TxD1/SO1
ASCK1/
SCK1
TI00
TI01
TO00
TI1
TO1
TI2
TO2
TI5/TO5
TI6/TO6
TI7/TO7
TI8/TO8
Serial Channel
RAM
3.5K - 12K
(64) 8-bit
General-Purpose
Registers
CPU Core
Ports
86/68 I/O Pins
78422X missing
ports 8,9,10
A
R
A
8-Channel,
8-bit
A/D Converter
A
A
A
X1
X2
XT1
XT2
PCL
RD
WR
ASTB
WAIT
Real-Time
Output
Port
Tone
Output
P
P
….
INTP0-
INTP6
A0-A7
A8-A15
A16-A19
AD0-
AD7
Memory
BUZ
ROM
96K - 256K
Timers and Counters
Serial Channels
Timer/Event
Counters
16-bit
Timer/Event
Counter
8-bit
Timer/Event
Counters
1 through 6
Timers
Watchdog
Real-time Clock
UART/IOE1
UART
BRG
RxD2/SI2
TxD2/SO2
ASCK2/
SCK1
UART/IOE2
UART
BRG
μ
PD/7842xx
16-Bit General-Purpose Microcontrollers
March 1998
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