Rainbow-electronics ATtiny28L Manual de usuario descargar pdf (Pagina 51)

ATtiny28L/V

1062E–10/01

Parallel Programming

Characteristics

Figure 39. Parallel Programming Timing

Parallel Programming Characteristics

= 25°C ± 10%, V

= 5V ± 10%

Symbol Parameter Min Typ Max Unit

Programming Enable Voltage 11.5 12.5 V

Programming Enable Current 250.0 µA

DVXH

Data & Control Valid before XTAL1 High 67.0 ns

XHXL

XTAL1 Pulse Width High 67.0 ns

XLDX

Data & Control Hold after XTAL1 Low 67.0 ns

XLWL

XTAL1 Low to WR Low 67.0 ns

BVWL

BS Valid to WR Low 67.0 ns

RHBX

BS Hold after RDY/BSY High 67.0 ns

WLWH

WR Pulse Width Low 67.0 ns

WLRL

WR Low to RDY/BSY Low 0.0 2.5 µs

WLRH

WR Low to RDY/BSY High 0.5 0.7 0.9 ms

XLOL

XTAL1 Low to OE Low 67.0 ns

OLDV

OE Low to DATA Valid 20.0 ns

OHDZ

OE High to DATA Tri-stated 20.0 ns

Data & Contol

(DATA, XA0/1, BS)

DATA

Write

Read

XTAL1

XHXL

WLWH

DVXH

XLOL

OLDV

WLRL

WLRH

RDY/BSY

XLDX

XLWL

RHBX

OHDZ

BVWL

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 74 75

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Rainbow-electronics ATtiny28L Manual de usuario Pagina 51

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