71M6545 Datasheet, PDF (124/134 Pages) Maxim Integrated Products – Four-Quadrant Metering, Phase Metrology Processors Flash/RAM Size

Data Sheet 71M6545/H
6.5 Timing Specifications
6.5.1 Flash Memory
Table 93: Flash Memory Timing Specifications
Parameter
Flash write cycles
Flash data retention
Flash byte writes between page or
mass erase operations
Write Time per Byte
Page Erase (1024 bytes)
Mass Erase
Condition
-40 °C to +85 °C
25 °C
85 °C
Min Typ
20,000
100
10
PDS_6545_009
Max Unit
Cycles
Years
2 Cycles
21
µs
21
ms
21
ms
6.5.2 SPI Slave
Table 94. SPI Slave Timing Specifications
Parameter
Condition
Min Typ Max
Unit
SPI Setup Time
SPI_DI to SPI_CK rise
10
ns
SPI Hold Time
SPI_CK rise to SPI_DI
10
ns
SPI Output Delay
SPI_CK fall to SPI_D0
40
ns
SPI Recovery Time
SPI_CSZ fall to SPI_CK
10
ns
SPI Removal Time
SPI_CK to SPI_CSZ rise
15
ns
SPI Clock High
40
ns
SPI Clock Low
40
ns
SPI Clock Freq
SPI Freq/MPU Freq
2.0
MHz/MHz
SPI Transaction Space SPI_CSZ rise to SPI_CSZ fall 4.5
MPU Cycles
6.5.3 EEPROM Interface
Table 95: 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 DIO2/3
PLL_FAST = 0
CKMPU = 4.9 MHz
PLL_FAST = 0
PLL_FAST = 1
Min Typ Max Unit
310
kHz
100
kHz
160
kHz
500
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