71M6531D Datasheet, PDF (102/115 Pages) Teridian Semiconductor Corporation – Energy Meter IC

Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
5.5 Timing Specifications
5.5.1 Flash Memory
Table 79: Flash Memory Timing Specifications
Parameter
Flash Read Pulse Width
Condition
Min Typ Max Unit
V3P3A = V3P3SYS = 0 30
(BROWNOUT Mode)
100
ns
Flash write cycles
-40°C to +85°C
20,000
Flash data retention
25°C
100
Flash data retention
85°C
10
Flash byte write operations between
page or mass erase operations
Write Time per Byte
Page Erase (1024 bytes)
Mass Erase
5.5.2 EEPROM Interface
Table 80: EEPROM Interface Timing
Parameter
Write Clock frequency (I²C)
Write Clock frequency (3-wire)
Condition
CKMPU = 4.9 MHz,
Using interrupts
CKMPU = 4.9 MHz,
bit-banging DIO4/5
CKMPU=4.9 MHz
Min Typ
78
150
500
5.5.3 RESET
Table 81: RESET Timing
Parameter
Reset pulse width
Reset pulse fall time
Condition
Min Typ
5
5.5.4 RTC
Parameter
Range for date
Condition
Min Typ
2000
Cycle
s
Years
Years
2
Cycle
s
42
µs
20
ms
200
ms
Max Unit
kHz
kHz
kHz
Max Unit
µs
1
µs
Max Unit
2255 year
102
© 2005-2009 TERIDIAN Semiconductor Corporation
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