71m6521be Maxim Integrated Products, Inc., 71m6521be Datasheet - Page 90

• Manufacturer Part Number: 71m6521be
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

TIMING SPECIFICATIONS
RAM AND FLASH MEMORY
FLASH MEMORY TIMING
EEPROM INTERFACE
RESET
FOOTNOTES
Page: 90 of 97
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
PARAMETER
Write Time per Byte
Page Erase (512 bytes)
Mass Erase
PARAMETER
Write Clock frequency (
Write Clock frequency (3-wire)
PARAMETER
Reset pulse width
Reset pulse fall time
1
2
3
4
other specs that use this nominal relationship as a reference.
This spec is guaranteed, has been verified in production samples, but is not measured in production.
This spec is guaranteed, has been verified in production samples, but is measured in production only at DC.
This spec is measured in production at the limits of the specified operating temperature.
This spec defines a nominal relationship rather than a measured parameter. Correct circuit operation is verified with
I
2
C
)
© 2005-2008 TERIDIAN Semiconductor Corporation
CKMPU = 4.9MHz
CKMPU = 1.25MHz
CKMPU = 614kHz
V3P3A=V3P3SYS=0
BROWNOUT MODE
-40°C to +85°C
25°C
85°C
CKMPU=4.9MHz, Using
interrupts
CKMPU=4.9MHz, “bit-
banging” DIO4/5
CKMPU=4.9MHz
CONDITION
CONDITION
CONDITION
CONDITION
20,000
MIN
MIN
MIN
MIN
100
30
10
5
2
1
5
Energy Meter IC
TYP
TYP
TYP
TYP
500
150
78
71M6521BE
MAX
MAX
MAX
MAX
DATA SHEET
100
200
42
20
2
1
Cycles
Cycles
Cycles
Cycles
Cycles
Years
Years
UNIT
UNIT
UNIT
UNIT
JANUARY 2008
kHz
kHz
kHz
ms
ms
ns
µs
µs
µs
V1.0