Rainbow Electronics 71M6542G - Manual (Page 151)

v1.1 © 2008–2011 Teridian Semiconductor Corporation 151
6.5 Timing Specifications
6.5.1 Flash Memory
Table 112: Flash Memory Timing Specifications
Parameter Condition Min Typ Max Unit
Flash write cycles -40 °C to +85 °C 20,000 Cycles
Flash data retention 25 °C
85 °C 100
10
Years
Flash byte writes between page or
mass erase operations
2 Cycles
Write Time per Byte 21 µs
Page Erase (1024 bytes) 21 ms
Mass Erase 21 ms
6.5.2 SPI Slave
Table 113. 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 114: EEPROM Interface Timing
Parameter Condition Min Typ Max Unit
Write Clock frequency (I 2 C)
CKMPU = 4.9 MHz,
Using interrupts
310 kHz
CKMPU = 4.9 MHz,
bit-banging DIO2/3
PLL_FAST = 0
100 kHz
Write Clock frequency (3-wire) CKMPU = 4.9 MHz
PLL_FAST = 0
PLL_FAST = 1
160
500 kHz
6.5.4 RESET Pin
Table 115: RESET Pin Timing
Parameter Condition Min Typ Max Unit
Reset pulse width 5 µs
Reset pulse fall time (see note 1) 1 µs
Note:
Guaranteed by design; not production tested.