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EM78P259NSO14J 参数 Datasheet PDF下载

EM78P259NSO14J图片预览
型号: EM78P259NSO14J
PDF下载: 下载PDF文件 查看货源
内容描述: [EM78Q153SN EM78P153SP EM78P153SN EM78156EH EM78156EP EM78156EM EM78156EKM EM78Q156ELP EM78Q156ELM EM78Q156ELKM EM78P156ELP EM78P156ELM EM78P156ELKM EM78P156NP EM78P156NM EM78447SH EM78447SAP EM78447SAM EM78447SAS EM78447SBP EM78447SBWM EM78Q447SH EM78Q447SAP EM78Q447SAM EM78Q447SBP EM78Q447SBWM EM78P447SAP EM78P447SAM EM78P447SAS EM78P447SBP EM78P447SBWM EM78Q257 EM78Q257AP EM78Q257AM EM78Q257BP EM78Q257BM EM78P257AP EM78P257AM EM78P257BP EM78P257BM EM78451H EM78451P EM78451AQ EM]
分类和应用:
文件页数/大小: 81 页 / 2574 K
品牌: ELAN [ ELAN MICROELECTRONICS CORP ]
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EM78P258N  
8-Bit Microprocessor with OTP ROM  
Bit 3 (HLP):  
Power consumption selection  
0 = Low power consumption, applies to working frequency  
at or below 4MHz  
1 = High power consumption, applies to working frequency  
above 4MHz  
Bit 2 ~ 0 (PR2 ~ PR0):  
Protect Bits  
PR2 ~ PR0 are protect bits. Each protect status is as  
follows:  
PR2  
PR1  
PR0  
Protect  
Enable  
Enable  
Enable  
Enable  
Enable  
Enable  
Enable  
Disable  
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
6.12.2 Code Option Register (Word 1)  
WORD 1  
Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0  
-
-
RCOUT NRHL NRE WDTPS CYES  
C3  
C2  
C1  
C0  
RCM1 RCM0  
Bits 12 ~ 11:  
Not used (reserved). These bits are set to “1” all the time  
Bit 10 (RCOUT): System clock output enable bit in IRC or ERC mode  
0 = OSCO pin is open drain  
1 = OSCO output system clock  
Bit 9 (NRHL):  
Noise rejection high/low pulses define bit. INT pin is falling edge  
trigger  
0 = Pulses equal to 8/fc [s] is regarded as signal  
1 = Pulses equal to 32/fc [s] is regarded as signal (default)  
NOTE  
The noise rejection function is turned off under the LXT and sleep mode.  
Bit 8 (NRE):  
Noise rejection enable  
0 = disable noise rejection  
1 = enable noise rejection (default), but under Low XTAL oscillator  
(LXT) mode, the noise rejection circuit is always disabled.  
Product Specification (V1.0) 06.16.2005  
63  
(This specification is subject to change without further notice)  
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