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UPD780957GC-XXX-8EU

更新时间： 2024-01-30 00:09:03
品牌 Logo 应用领域
其他 - ETC 微控制器
页数 文件大小 规格书
60页 820K
描述
8-Bit Microcontroller

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UPD780957GC-XXX-8EU 数据手册

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DATA SHEET  
MOS INTEGRATED CIRCUIT  
µ
PD780957(A), 780958(A)  
8-BIT SINGLE-CHIP MICROCONTROLLERS  
DESCRIPTION  
µ
µ
The PD780957(A) and 780958(A) are PD780958 Subseries products of the 78K/0 Series.  
These  
microcontrollers support ultra-low power consumption and are especially suitable for meter control.  
Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before  
designing.  
µPD780958 Subseries User’s Manual:  
U13655E  
78K/0 Series User’s Manual Instructions: U12326E  
FEATURES  
•
•
Ultra-low power consumption supported.  
On-chip ROM and RAM  
Item  
Internal ROM  
Internal High-Speed RAM  
1024 bytes  
Internal Expansion RAM  
1024 bytes  
LCD Display RAM  
30 bytes  
Part Number  
µPD780957(A)  
µPD780958(A)  
48 KB  
60 KB  
•
Three channels of clock generators: Main system clock (1 MHz (RC oscillation))  
: Subsystem clock 1 (32.768 kHz)  
: Subsystem clock 2 (4.91 MHz)  
•
•
•
I/O ports (including segment signal output alternate function pins): 69  
LCD controller/driver  
Serial interface: 2 channels  
•
•
UART mode (with pin switching function): 1 channel (communication is enabled with subsystem clocks 1 and 2)  
3-wire serial I/O mode: 1 channel  
•
•
•
MR sampling function: 1 channel  
Sampling output timer/detector: 1 channel  
Timer: 7 channels  
•
•
•
16-bit timer/event counter: 2 channels  
8-bit timer:  
4 channels  
1 channel  
Watchdog timer:  
•
•
•
×
Real-time output function: 4-bit resolution 4 channels  
Standby function: HALT mode  
DD  
Supply voltage:  
V
= 2.2 to 3.5 V  
The information in this document is subject to change without notice. Before using this document, please  
confirm that this is the latest version.  
Not all devices/types available in every country. Please check with local NEC representative for  
availability and additional information.  
Document No. U13739EJ1V0DS00 (1st edition)  
Date Published February 2001 N CP(K)  
Printed in Japan  
The mark  
shows major revised points.  
1999  
©
1234567...60

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