71M6521BE Datasheet, PDF (90/97 Pages) Teridian Semiconductor Corporation – Energy Meter IC

TIMING SPECIFICATIONS
RAM AND FLASH MEMORY
PARAMETER
CE DRAM wait states
Flash Read Pulse Width
Flash write cycles
Flash data retention
Flash data retention
Flash byte writes between page or mass
erase operations
FLASH MEMORY TIMING
PARAMETER
Write Time per Byte
Page Erase (512 bytes)
Mass Erase
EEPROM INTERFACE
PARAMETER
Write Clock frequency (I²C)
Write Clock frequency (3-wire)
CONDITION
CKMPU = 4.9MHz
CKMPU = 1.25MHz
CKMPU = 614kHz
V3P3A=V3P3SYS=0
BROWNOUT MODE
-40°C to +85°C
25°C
85°C
CONDITION
CONDITION
CKMPU=4.9MHz, Using
interrupts
CKMPU=4.9MHz, “bit-
banging” DIO4/5
CKMPU=4.9MHz
71M6521BE
Energy Meter IC
DATA SHEET
JANUARY 2008
MIN
TYP
5
2
1
30
20,000
100
10
MAX
100
2
UNIT
Cycles
Cycles
Cycles
ns
Cycles
Years
Years
Cycles
MIN
TYP
MAX UNIT
42
µs
20
ms
200
ms
MIN
TYP
MAX UNIT
78
kHz
150
kHz
500
kHz
RESET
PARAMETER
Reset pulse width
Reset pulse fall time
CONDITION
MIN
TYP
MAX UNIT
5
µs
1
µs
FOOTNOTES
1_{This spec is guaranteed, has been verified in production samples, but is not measured in production.}
2_{This spec is guaranteed, has been verified in production samples, but is measured in production only at DC.}
3_{This spec is measured in production at the limits of the specified operating temperature.}
4_{This spec defines a nominal relationship rather than a measured parameter. Correct circuit operation is verified with}
other specs that use this nominal relationship as a reference.
Page: 90 of 97
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