công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

Preview PDF HTML

MCP7940N-E/ST bảng dữ liệu(PDF) 18 Page - Microchip Technology

tên linh kiện MCP7940N-E/ST
Giải thích chi tiết về linh kiện  Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
PDF  42 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP7940N-E/ST bảng dữ liệu(HTML) 18 Page - Microchip Technology

Back Button MCP7940N-E/ST Datasheet HTML 14Page - Microchip Technology MCP7940N-E/ST Datasheet HTML 15Page - Microchip Technology MCP7940N-E/ST Datasheet HTML 16Page - Microchip Technology MCP7940N-E/ST Datasheet HTML 17Page - Microchip Technology MCP7940N-E/ST Datasheet HTML 18Page - Microchip Technology MCP7940N-E/ST Datasheet HTML 19Page - Microchip Technology MCP7940N-E/ST Datasheet HTML 20Page - Microchip Technology MCP7940N-E/ST Datasheet HTML 21Page - Microchip Technology MCP7940N-E/ST Datasheet HTML 22Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 18 / 42 page
background image
MCP7940N
DS25010E-page 18
 2011-2013 Microchip Technology Inc.
6.0
ON BOARD MEMORY
The MCP7940N has battery-backed SRAM. The
SRAM is arranged as 64 x 8 bytes and is retained when
the VCC supply is removed, provided the VBAT supply
is present and enabled.
6.1
SRAM
FIGURE 6-1:
SRAM/RTCC BYTE WRITE
FIGURE 6-2:
SRAM/RTCC MULTIPLE BYTE WRITE
The 64 bytes of user SRAM are at location 0x20h and
can be accessed during an RTCC update. Upon POR
the SRAM will be in an undefined state.
BUS ACTIVITY
MASTER
SDA LINE
BUS ACTIVITY
S
T
A
R
T
CONTROL
BYTE
ADDRESS
BYTE
DATA
S
T
O
P
A
C
K
A
C
K
A
C
K
S 1 101
0
1 11
P
x
BUS ACTIVITY
MASTER
SDA LINE
BUS ACTIVITY
S
T
A
R
T
CONTROL
BYTE
ADDRESS
BYTE
DATA BYTE 0
S
T
O
P
A
C
K
A
C
K
A
C
K
DATA BYTE N
A
C
K
S 11 0 1
0
111
P
x
Note:
Entering an address past 5F for an SRAM
operation will result in the MCP7940N not
acknowledging the address.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com