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參數資料
| 型號： | μPD789122 |
| 廠商： | NEC Corp. |
| 英文描述： | 8 Bit Single Chip Microcontrollers(8 位單片微控制器) |
| 中文描述： | 8位單片機微控制器（8位單片微控制器） |
| 文件頁數： | 1/48頁 |
| 文件大小： | 220K |
| 代理商： | ΜPD789122 |
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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.
Document No. U13025EJ1V0PM00 (1st edition)
Date Published January 1998 J
Printed in Japan
CP (K)
1998
8-BIT SINGLE-CHIP MICROCONTROLLER
PRELIMINARY PRODUCT INFORMATION
MOS INTEGRATED CIRCUITS
PD789121, 789122, 789124
The PD789121, PD789122, and PD789124 are PD789124 sub-series products of the 78K/0S series.
These microcontrollers feature an 8-bit CPU, I/O ports, timers, a serial interface, A/D converters, and interrupt
control circuits.
In addition, a flash memory product ( PD78F9136) that can operate within the same voltage range as the
mask ROM models, and a range of related development tools are being developed.
The functions of these microcontrollers are described in the following user’s manual. Refer to this
manual when designing a system based on any of these microcontrollers.
PD789134 Sub-Series User’s Manual
78K/0S Series User's Manual, Instruction : U11047E
: To be created
FEATURES
Built-in two 8-bit multipliers: 16 bits
ROM and RAM sizes
Item
Data memory
Product name
(Internal high-speed RAM)
PD789121
2 Kbytes
256 bytes
28-pin plastic shrink DIP (400 mil)
PD789122
4 Kbytes
30-pin plastic shrink SOP (300 mil)
PD789124
8 Kbytes
Built-in RC oscillator
Variable minimum instruction execution time: From high-speed (0.5 s) to low-speed (2.0 s) (operation with
the main system clock running at 4.0 MHz)
20 I/O ports
Serial interface channel: Switchable between three-wire serial I/O and UART modes
Four-channel A/D converters with an 8-bit resolution
Three timers:
16-bit timer 20
8-bit timer/event counter 80
Watchdog timer
Power supply voltage V
DD
: 1.8 to 5.5 V
APPLICATIONS
Cleaners, washing machines, refrigerators, and battery chargers
Program memory
(ROM)
Package
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| PD78F0134 | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
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| PD78F0134(A1) | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
| PD78F0134A | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
| PD78F0134A1 | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
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