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参数资料
| 型号： | FM32276-GTR |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 封装： | GREEN, MS-012AB, SOIC-14 |
| 文件页数： | 9/21页 |
| 文件大小： | 417K |
| 代理商： | FM32276-GTR |
FM32278/276/274/272 - 5V I2C Companion
Rev. 3.1
July 2010
Page 17 of 21
DC Operating Conditions, continued (TA = -40° C to + 85° C, VDD = 4.0V to 5.5V unless otherwise specified)
Symbol
Parameter
Min
Typ
Max
Units
Notes
RIN
Input Resistance (pulldown)
A1-A0 for VIN = VIL max
A1-A0 for VIN = VIH min
20
1
K
M
VPFI
Power Fail Input Reference Voltage
1.175
1.20
1.225
V
VHYS
Power Fail Input (PFI) Hysteresis (Rising)
-
100
mV
Notes
1.
SCL toggling between VDD-0.3V and VSS, other inputs VSS or VDD-0.3V.
2.
All inputs at VSS or VDD, static. Stop command issued.
3.
VIN or VOUT = VSS to VDD. Does not apply to A0, A1, or /RST pins.
4.
VBAK = 3.0V, VDD < 2.4V, oscillator running, CNT1-2 at VBAK.
5.
/RST is asserted low when VDD < VTP.
6.
The minimum VDD to guarantee the level of /RST remains a valid VOL level.
7.
Full complete operation. Supervisory circuits operate to lower voltages as specified.
8.
Includes /RST input detection of external reset condition to trigger driving of /RST signal by FM3227x.
9.
The VBAK trickle charger automatically regulates the maximum voltage on this pin for capacitor backup applications.
10. VBAK will source current when trickle charge is enabled (VBC bit=1), VDD > VBAK, and VBAK < VBAK max.
AC Parameters (TA = -40° C to + 85° C, VDD = 4.0V to 5.5V, CL = 100 pF unless otherwise specified)
Symbol
Parameter
Min
Max
Min
Max
Min
Max
Units
Notes
fSCL
SCL Clock Frequency
0
100
0
400
0
1000
kHz
tLOW
Clock Low Period
4.7
1.3
0.6
s
tHIGH
Clock High Period
4.0
0.6
0.4
s
tAA
SCL Low to SDA Data Out Valid
3
0.9
0.55
s
tBUF
Bus Free Before New Transmission
4.7
1.3
0.5
s
tHD:STA
Start Condition Hold Time
4.0
0.6
0.25
s
tSU:STA
Start Condition Setup for Repeated
Start
4.7
0.6
0.25
s
tHD:DAT
Data In Hold Time
0
ns
tSU:DAT
Data In Setup Time
250
100
ns
tR
Input Rise Time
1000
300
ns
1
tF
Input Fall Time
300
100
ns
1
tSU:STO
Stop Condition Setup Time
4.0
0.6
0.25
s
tDH
Data Output Hold (from SCL @ VIL)
0
ns
tSP
Noise Suppression Time Constant
on SCL, SDA
50
ns
All SCL specifications as well as start and stop conditions apply to both read and write operations.
Capacitance (TA = 25° C, f=1.0 MHz, VDD = 5.0V)
Symbol
Parameter
Typ
Max
Units
Notes
CIO
Input/Output Capacitance
-
8
pF
1
Notes
1
This parameter is characterized but not tested.
Data Retention (VDD = 4.0V to 5.5V)
Symbol
Parameter
Min
Units
Notes
TDR
Data Retention
@ +75°C
@ +80°C
@ +85°C
45
20
10
Years
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