Absolute Maximum Ratings
參數(shù)資料
型號: MCP7940MT-I/SN
廠商: Microchip Technology
文件頁數(shù): 13/19頁
文件大?。?/td> 0K
描述: IC RTCC I2C 64B SRAM 8-SOIC
標(biāo)準(zhǔn)包裝: 3,300
類型: 時鐘/日歷
特點: 警報器,閏年,方波輸出,SRAM
存儲容量: 64B
時間格式: HH:MM:SS(12/24 小時)
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
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOICN
包裝: 帶卷 (TR)
2012 Microchip Technology Inc.
Preliminary
DS22292A-page 3
MCP7940M
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings ()
VCC.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ..........................................................................................................-0.6V to VCC +1.0V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied................................................................................................-40°C to +125°C
ESD protection on all pins
4 kV
TABLE 1-1:
DC CHARACTERISTICS
NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for
extended periods may affect device reliability.
DC CHARACTERISTICS
Electrical Characteristics:
Industrial (I):
VCC = +1.8V to 5.5V
TA = -40°C to +85°C
Param.
No.
Sym.
Characteristic
Min.
Typ.
Max.
Units
Conditions
SCL, SDA pins
D1
VIH
High-level input voltage
0.7 VCC
—V
D2
VIL
Low-level input voltage
0.3 VCC
0.2 VCC
VVCC = 2.5V to 5.5V
D3
VHYS
Hysteresis of Schmitt
Trigger inputs
(SDA, SCL pins)
0.05
VCC
—V
D4
VOL
Low-level output voltage
(MFP, SDA)
—0.40
V
IOL = 3.0 ma @ VCC = 4.5V
IOL = 2.1 ma @ VCC = 2.5V
D5
ILI
Input leakage current
±1
AVIN = VSS or VCC
D6
ILO
Output leakage current
±1
AVOUT = VSS or VCC
D7
CIN,
COUT
Pin capacitance
(SDA, SCL and MFP)
—10
pF
VCC = 5.0V (Note 1)
TA = 25°C, f = 400 kHz
D8
ICC Read Operating current
SRAM
300
AVCC = 5.5V, SCL = 400 kHz
ICC Write
400
AVCC = 5.5V, SCL = 400 kHz
D9
ICCS
Standby current
1
AVCC = 5.5V, SCL = SDA = VCC
D10
IVcc
Operating Current
25
AVCC = 5.5V @ 25°C (Note 2)
D11
COSC
Oscillator Pin
Capacitance
—3
pF
Note 1:
This parameter is periodically sampled and not 100% tested.
2:
Oscillator Running.
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