V
參數(shù)資料
型號(hào): MCP7940NT-I/MS
廠商: Microchip Technology
文件頁(yè)數(shù): 7/14頁(yè)
文件大?。?/td> 0K
描述: IC RTCC 64B SRAM GP I2C 8MSOP
標(biāo)準(zhǔn)包裝: 2,500
類型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,閏年,方波輸出,SRAM
存儲(chǔ)容量: 64B
時(shí)間格式: HH:MM:SS(12/24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: I²C,2 線串口
電源電壓: 1.8 V ~ 5.5 V
電壓 - 電源,電池: 1.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-MSOP
包裝: 帶卷 (TR)
MCP7940N
DS25010C-page 2
2011 Microchip Technology Inc.
FIGURE 1-1:
TYPICAL OPERATING
CIRCUIT
FIGURE 1-2:
SCHEMATIC
X1
X2
VBAT
VSS
MFP
SCL
SDA
RTCC
SRAM
Time-Stamp/
Alarms
I2C
Os
ci
llat
or
VBAT Switch
VCC
M
C
P7940N
X1
X2
VBAT
VSS
VCC
MFP
SCL
SDA
SYSTEM VCC
C1
Note 1
R1
R2
CX1
CX2
X1
C2
R4
D1
BAT
Suggested Values:
C1
CX1, CX2
C2
R1
R2,3
R4
D1
BAT
X1
100nF
See Text
100pF
10K
2.2K
1K
Schottky
Back-up Supply
32.768 kHz Crystal
(See Text)
MFP
SCL
SDA
Note 1: A 100nF Capacitor should be placed as close to the Vcc pin on the
device as possible.
R3
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