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PCF2127T/2Y 데이터시트(PDF) 16 Page - NXP Semiconductors

부품명 PCF2127T/2Y
상세설명  Accurate RTC with integrated quartz crystal for industrial applications
PDF  100 Pages
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제조업체  PHILIPS [NXP Semiconductors]
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PCF2127T/2Y 데이터시트(HTML) 16 Page - NXP Semiconductors

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PCF2127
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 8 — 19 December 2014
16 of 100
NXP Semiconductors
PCF2127
Accurate RTC with integrated quartz crystal for industrial applications
8.5.1 Register RAM_addr_MSB
8.5.2 Register RAM_addr_LSB
8.5.3 Register RAM_wrt_cmd
8.5.4 Register RAM_rd_cmd
Table 19.
RAM_addr_MSB - RAM address MSB register (address 1Ah) bit allocation
Bit positions labeled as - are not implemented and return 0 when read.
Bit
7
6
5
4
3
2
1
0
Symbol
---
----
RA8
Reset
value
---
----
0
Table 20.
RAM_addr_MSB - RAM address MSB register (address 1Ah) bit description
Bit positions labeled as - are not implemented and return 0 when read.
Bit
Symbol
Description
7 to 1
-
unused
0
RA8
RAM address, MSB (9th bit)
Table 21.
RAM_addr_LSB - RAM address LSB register (address 1Bh) bit allocation
Bit
7
6
5
4
3
2
1
0
Symbol
RA[7:0]
Reset
value
0
000
0000
Table 22.
RAM_addr_LSB - RAM address LSB register (address 1Bh) bit description
Bit
Symbol
Description
7 to 0
RA[7:0]
RAM address, LSB (1st to 8th bit)
Table 23.
RAM_wrt_cmd - RAM write command register (address 1Ch) bit description
Bit
Symbol
Description
7 to 0
-
data to be written into RAM
Table 24.
RAM_rd_cmd - RAM read command register (address 1Dh) bit description
Bit
Symbol
Description
7 to 0
-
data to be read from RAM



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