Rainbow-electronics ATmega8515L Manual do Utilizador descarregar pdf (Página 188)

188

ATmega8515(L)

2512A–AVR–04/02

Notes: 1. t

WLRH

is validfor the Write Flash, Write EEPROM, Write Fuse bits andWrite Lock

bitscommands.

2. t

WLRH_CE

is validfor the ChipErase command.

XLWL

XTA L1 Low to WR Low 0ns

XLPH

XTA L1 Low to PAGEL high 0ns

PLXH

PAGEL low to XTAL1 high 150 ns

BVPH

BS1ValidbeforePAGEL High67ns

PHPL

PAGEL Pulse WidthHigh 150 ns

PLBX

BS1 Hold after PAGEL Low67ns

WLBX

BS2/1 Hold afterWR Low67ns

PLWL

PAGEL Low to WR Low67ns

BVWL

BS1Valid to WR Low67ns

WLWH

WR Pulse WidthLow 150 ns

WLRL

WR Low to RDY/BSY Low 01µs

WLRH

WR Low to RDY/BSY High

(1)

3.7 4.5 ms

WLRH_CE

WR Low to RDY/BSY HighforChipErase

(2)

7.5 9 ms

XLOL

XTA L1 Low to OE Low 0ns

BVDV

BS1Valid to DATA valid 0250ns

OLDV

OE Low to DATA Valid 250 ns

OHDZ

OE High to DATA Tri-stated 250 ns

Table 91. Parallel Programming Characteristics, V

= 5V ± 10%(Continued)

Symbol Parameter Min Typ Max Units

1 2 ... 183 184 185 186 187 188 189 190 191 192 193 ... 222 223

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